Merge pull request #2044

0299cb77 Fix various oversights/bugs in ZMQ RPC server code (Thomas Winget)
77986023 json serialization for rpc-relevant monero types (Thomas Winget)
5c1e08fe Refactor some things into more composable (smaller) functions (Thomas Winget)
9ac2ad07 DRY refactoring (Thomas Winget)

31 files changed, 5471 insertions, 77 deletions

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 3d53e049e..971c097ff 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -689,6 +689,16 @@ endif()
 
 include(version.cmake)
 
+find_path(ZMQ_INCLUDE_PATH zmq.hpp)
+find_library(ZMQ_LIB zmq)
+
+if(NOT ZMQ_INCLUDE_PATH)
+  message(FATAL_ERROR "Could not find required header zmq.hpp")
+endif()
+if(NOT ZMQ_LIB)
+  message(FATAL_ERROR "Could not find require libzmq")
+endif()
+
 function (treat_warnings_as_errors dirs)
   foreach(dir ${ARGV})
     set_property(DIRECTORY ${dir}
diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index e473c2984..e3cb7cfd6 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -107,6 +107,7 @@ endif()
 add_subdirectory(mnemonics)
 if(NOT IOS)
   add_subdirectory(rpc)
+  add_subdirectory(serialization)
 endif()
 add_subdirectory(wallet)
 if(NOT IOS)
diff --git a/src/common/sfinae_helpers.h b/src/common/sfinae_helpers.h
new file mode 100644
index 000000000..ddd456dd2
--- /dev/null
+++ b/src/common/sfinae_helpers.h
@@ -0,0 +1,147 @@
+// Copyright (c) 2016-2017, The Monero Project
+// 
+// All rights reserved.
+// 
+// Redistribution and use in source and binary forms, with or without modification, are
+// permitted provided that the following conditions are met:
+// 
+// 1. Redistributions of source code must retain the above copyright notice, this list of
+//    conditions and the following disclaimer.
+// 
+// 2. Redistributions in binary form must reproduce the above copyright notice, this list
+//    of conditions and the following disclaimer in the documentation and/or other
+//    materials provided with the distribution.
+// 
+// 3. Neither the name of the copyright holder nor the names of its contributors may be
+//    used to endorse or promote products derived from this software without specific
+//    prior written permission.
+// 
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
+// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
+// THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+// STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
+// THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+#pragma once
+
+// the loose definitions of types in this file are, well, loose.
+//
+// these helpers aren't here for absolute type certainty at compile-time,
+// but rather to help with templated functions telling types apart.
+
+namespace sfinae
+{
+
+  typedef char true_type;
+
+  struct false_type { true_type a[2]; };
+
+  template <typename T>
+  struct is_not_container
+  {
+  private:
+
+    // does not have const iterator
+    template <typename C> static false_type c_iter(typename C::const_iterator*);
+    template <typename C> static true_type c_iter(...);
+
+    // does not have value_type
+    template <typename C> static false_type v_type(typename C::value_type*);
+    template <typename C> static true_type v_type(...);
+
+    // does not have key_type
+    template <typename C> static false_type k_type(typename C::key_type*);
+    template <typename C> static true_type k_type(...);
+
+    // does not have mapped_type
+    template <typename C> static false_type m_type(typename C::mapped_type*);
+    template <typename C> static true_type m_type(...);
+
+  public:
+
+    static const bool value = (
+      (
+        sizeof(c_iter<T>(0)) == sizeof(true_type) &&
+        sizeof(v_type<T>(0)) == sizeof(true_type) &&
+        sizeof(k_type<T>(0)) == sizeof(true_type) &&
+        sizeof(m_type<T>(0)) == sizeof(true_type)
+      )
+      || std::is_same<T, std::string>::value
+    );
+
+    typedef T type;
+  };
+
+  template <typename T>
+  struct is_vector_like
+  {
+  private:
+
+    // has const iterator
+    template <typename C> static true_type c_iter(typename C::const_iterator*);
+    template <typename C> static false_type c_iter(...);
+
+    // has value_type
+    template <typename C> static true_type v_type(typename C::value_type*);
+    template <typename C> static false_type v_type(...);
+
+    // does not have key_type
+    template <typename C> static false_type k_type(typename C::key_type*);
+    template <typename C> static true_type k_type(...);
+
+    // does not have mapped_type
+    template <typename C> static false_type m_type(typename C::mapped_type*);
+    template <typename C> static true_type m_type(...);
+
+  public:
+
+    static const bool value = (
+        sizeof(c_iter<T>(0)) == sizeof(true_type) &&
+        sizeof(v_type<T>(0)) == sizeof(true_type) &&
+        sizeof(k_type<T>(0)) == sizeof(true_type) &&
+        sizeof(m_type<T>(0)) == sizeof(true_type) &&
+        !std::is_same<T, std::string>::value
+    );
+
+    typedef T type;
+  };
+
+  template <typename T>
+  struct is_map_like
+  {
+  private:
+
+    // has const iterator
+    template <typename C> static true_type c_iter(typename C::const_iterator*);
+    template <typename C> static false_type c_iter(...);
+
+    // has value_type
+    template <typename C> static true_type v_type(typename C::value_type*);
+    template <typename C> static false_type v_type(...);
+
+    // has key_type
+    template <typename C> static true_type k_type(typename C::key_type*);
+    template <typename C> static false_type k_type(...);
+
+    // has mapped_type
+    template <typename C> static true_type m_type(typename C::mapped_type*);
+    template <typename C> static false_type m_type(...);
+
+  public:
+
+    static const bool value = (
+        sizeof(c_iter<T>(0)) == sizeof(true_type) &&
+        sizeof(v_type<T>(0)) == sizeof(true_type) &&
+        sizeof(k_type<T>(0)) == sizeof(true_type) &&
+        sizeof(m_type<T>(0)) == sizeof(true_type) &&
+        !std::is_same<T, std::string>::value
+    );
+
+    typedef T type;
+  };
+
+}  // namespace sfinae
diff --git a/src/cryptonote_config.h b/src/cryptonote_config.h
index 8ff01cf8b..cdb46dda9 100644
--- a/src/cryptonote_config.h
+++ b/src/cryptonote_config.h
@@ -150,6 +150,7 @@ namespace config
   uint64_t const CRYPTONOTE_PUBLIC_INTEGRATED_ADDRESS_BASE58_PREFIX = 19;
   uint16_t const P2P_DEFAULT_PORT = 18080;
   uint16_t const RPC_DEFAULT_PORT = 18081;
+  uint16_t const ZMQ_RPC_DEFAULT_PORT = 18082;
   boost::uuids::uuid const NETWORK_ID = { {
       0x12 ,0x30, 0xF1, 0x71 , 0x61, 0x04 , 0x41, 0x61, 0x17, 0x31, 0x00, 0x82, 0x16, 0xA1, 0xA1, 0x10
     } }; // Bender's nightmare
@@ -162,6 +163,7 @@ namespace config
     uint64_t const CRYPTONOTE_PUBLIC_INTEGRATED_ADDRESS_BASE58_PREFIX = 54;
     uint16_t const P2P_DEFAULT_PORT = 28080;
     uint16_t const RPC_DEFAULT_PORT = 28081;
+    uint16_t const ZMQ_RPC_DEFAULT_PORT = 28082;
     boost::uuids::uuid const NETWORK_ID = { {
         0x12 ,0x30, 0xF1, 0x71 , 0x61, 0x04 , 0x41, 0x61, 0x17, 0x31, 0x00, 0x82, 0x16, 0xA1, 0xA1, 0x11
       } }; // Bender's daydream
diff --git a/src/cryptonote_core/blockchain.cpp b/src/cryptonote_core/blockchain.cpp
index 69d2edf65..2330b6c42 100644
--- a/src/cryptonote_core/blockchain.cpp
+++ b/src/cryptonote_core/blockchain.cpp
@@ -751,7 +751,7 @@ difficulty_type Blockchain::get_difficulty_for_next_block()
     m_timestamps = timestamps;
     m_difficulties = difficulties;
   }
-  size_t target = get_current_hard_fork_version() < 2 ? DIFFICULTY_TARGET_V1 : DIFFICULTY_TARGET_V2;
+  size_t target = get_difficulty_target();
   return next_difficulty(timestamps, difficulties, target);
 }
 //------------------------------------------------------------------
@@ -1571,6 +1571,98 @@ void Blockchain::add_out_to_get_random_outs(COMMAND_RPC_GET_RANDOM_OUTPUTS_FOR_A
   output_data_t data = m_db->get_output_key(amount, i);
   oen.out_key = data.pubkey;
 }
+
+uint64_t Blockchain::get_num_mature_outputs(uint64_t amount) const
+{
+  uint64_t num_outs = m_db->get_num_outputs(amount);
+  // ensure we don't include outputs that aren't yet eligible to be used
+  // outpouts are sorted by height
+  while (num_outs > 0)
+  {
+    const tx_out_index toi = m_db->get_output_tx_and_index(amount, num_outs - 1);
+    const uint64_t height = m_db->get_tx_block_height(toi.first);
+    if (height + CRYPTONOTE_DEFAULT_TX_SPENDABLE_AGE <= m_db->height())
+      break;
+    --num_outs;
+  }
+
+  return num_outs;
+}
+
+std::vector<uint64_t> Blockchain::get_random_outputs(uint64_t amount, uint64_t count) const
+{
+  uint64_t num_outs = get_num_mature_outputs(amount);
+
+  std::vector<uint64_t> indices;
+
+  std::unordered_set<uint64_t> seen_indices;
+
+  // if there aren't enough outputs to mix with (or just enough),
+  // use all of them.  Eventually this should become impossible.
+  if (num_outs <= count)
+  {
+    for (uint64_t i = 0; i < num_outs; i++)
+    {
+      // get tx_hash, tx_out_index from DB
+      tx_out_index toi = m_db->get_output_tx_and_index(amount, i);
+
+      // if tx is unlocked, add output to indices
+      if (is_tx_spendtime_unlocked(m_db->get_tx_unlock_time(toi.first)))
+      {
+        indices.push_back(i);
+      }
+    }
+  }
+  else
+  {
+    // while we still need more mixins
+    while (indices.size() < count)
+    {
+      // if we've gone through every possible output, we've gotten all we can
+      if (seen_indices.size() == num_outs)
+      {
+        break;
+      }
+
+      // get a random output index from the DB.  If we've already seen it,
+      // return to the top of the loop and try again, otherwise add it to the
+      // list of output indices we've seen.
+
+      // triangular distribution over [a,b) with a=0, mode c=b=up_index_limit
+      uint64_t r = crypto::rand<uint64_t>() % ((uint64_t)1 << 53);
+      double frac = std::sqrt((double)r / ((uint64_t)1 << 53));
+      uint64_t i = (uint64_t)(frac*num_outs);
+      // just in case rounding up to 1 occurs after sqrt
+      if (i == num_outs)
+        --i;
+
+      if (seen_indices.count(i))
+      {
+        continue;
+      }
+      seen_indices.emplace(i);
+
+      // get tx_hash, tx_out_index from DB
+      tx_out_index toi = m_db->get_output_tx_and_index(amount, i);
+
+      // if the output's transaction is unlocked, add the output's index to
+      // our list.
+      if (is_tx_spendtime_unlocked(m_db->get_tx_unlock_time(toi.first)))
+      {
+        indices.push_back(i);
+      }
+    }
+  }
+
+  return indices;
+}
+
+crypto::public_key Blockchain::get_output_key(uint64_t amount, uint64_t global_index) const
+{
+  output_data_t data = m_db->get_output_key(amount, global_index);
+  return data.pubkey;
+}
+
 //------------------------------------------------------------------
 // This function takes an RPC request for mixins and creates an RPC response
 // with the requested mixins.
@@ -1585,80 +1677,18 @@ bool Blockchain::get_random_outs_for_amounts(const COMMAND_RPC_GET_RANDOM_OUTPUT
   // from BlockchainDB where <n> is req.outs_count (number of mixins).
   for (uint64_t amount : req.amounts)
   {
-    auto num_outs = m_db->get_num_outputs(amount);
-    // ensure we don't include outputs that aren't yet eligible to be used
-    // outpouts are sorted by height
-    while (num_outs > 0)
-    {
-      const tx_out_index toi = m_db->get_output_tx_and_index(amount, num_outs - 1);
-      const uint64_t height = m_db->get_tx_block_height(toi.first);
-      if (height + CRYPTONOTE_DEFAULT_TX_SPENDABLE_AGE <= m_db->height())
-        break;
-      --num_outs;
-    }
-
     // create outs_for_amount struct and populate amount field
     COMMAND_RPC_GET_RANDOM_OUTPUTS_FOR_AMOUNTS::outs_for_amount& result_outs = *res.outs.insert(res.outs.end(), COMMAND_RPC_GET_RANDOM_OUTPUTS_FOR_AMOUNTS::outs_for_amount());
     result_outs.amount = amount;
 
-    std::unordered_set<uint64_t> seen_indices;
+    std::vector<uint64_t> indices = get_random_outputs(amount, req.outs_count);
 
-    // if there aren't enough outputs to mix with (or just enough),
-    // use all of them.  Eventually this should become impossible.
-    if (num_outs <= req.outs_count)
+    for (auto i : indices)
     {
-      for (uint64_t i = 0; i < num_outs; i++)
-      {
-        // get tx_hash, tx_out_index from DB
-        tx_out_index toi = m_db->get_output_tx_and_index(amount, i);
+      COMMAND_RPC_GET_RANDOM_OUTPUTS_FOR_AMOUNTS::out_entry& oe = *result_outs.outs.insert(result_outs.outs.end(), COMMAND_RPC_GET_RANDOM_OUTPUTS_FOR_AMOUNTS::out_entry());
 
-        // if tx is unlocked, add output to result_outs
-        if (is_tx_spendtime_unlocked(m_db->get_tx_unlock_time(toi.first)))
-        {
-          add_out_to_get_random_outs(result_outs, amount, i);
-        }
-
-      }
-    }
-    else
-    {
-      // while we still need more mixins
-      while (result_outs.outs.size() < req.outs_count)
-      {
-        // if we've gone through every possible output, we've gotten all we can
-        if (seen_indices.size() == num_outs)
-        {
-          break;
-        }
-
-        // get a random output index from the DB.  If we've already seen it,
-        // return to the top of the loop and try again, otherwise add it to the
-        // list of output indices we've seen.
-
-        // triangular distribution over [a,b) with a=0, mode c=b=up_index_limit
-        uint64_t r = crypto::rand<uint64_t>() % ((uint64_t)1 << 53);
-        double frac = std::sqrt((double)r / ((uint64_t)1 << 53));
-        uint64_t i = (uint64_t)(frac*num_outs);
-        // just in case rounding up to 1 occurs after sqrt
-        if (i == num_outs)
-          --i;
-
-        if (seen_indices.count(i))
-        {
-          continue;
-        }
-        seen_indices.emplace(i);
-
-        // get tx_hash, tx_out_index from DB
-        tx_out_index toi = m_db->get_output_tx_and_index(amount, i);
-
-        // if the output's transaction is unlocked, add the output's index to
-        // our list.
-        if (is_tx_spendtime_unlocked(m_db->get_tx_unlock_time(toi.first)))
-        {
-          add_out_to_get_random_outs(result_outs, amount, i);
-        }
-      }
+      oe.global_amount_index = i;
+      oe.out_key = get_output_key(amount, i);
     }
   }
   return true;
@@ -1816,6 +1846,15 @@ bool Blockchain::get_outs(const COMMAND_RPC_GET_OUTPUTS_BIN::request& req, COMMA
   return true;
 }
 //------------------------------------------------------------------
+void Blockchain::get_output_key_mask_unlocked(const uint64_t& amount, const uint64_t& index, crypto::public_key& key, rct::key& mask, bool& unlocked) const
+{
+  const auto o_data = m_db->get_output_key(amount, index);
+  key = o_data.pubkey;
+  mask = o_data.commitment;
+  tx_out_index toi = m_db->get_output_tx_and_index(amount, index);
+  unlocked = is_tx_spendtime_unlocked(m_db->get_tx_unlock_time(toi.first));
+}
+//------------------------------------------------------------------
 // This function takes a list of block hashes from another node
 // on the network to find where the split point is between us and them.
 // This is used to see what to send another node that needs to sync.
@@ -2025,28 +2064,39 @@ void Blockchain::print_blockchain_outs(const std::string& file) const
 // Find the split point between us and foreign blockchain and return
 // (by reference) the most recent common block hash along with up to
 // BLOCKS_IDS_SYNCHRONIZING_DEFAULT_COUNT additional (more recent) hashes.
-bool Blockchain::find_blockchain_supplement(const std::list<crypto::hash>& qblock_ids, NOTIFY_RESPONSE_CHAIN_ENTRY::request& resp) const
+bool Blockchain::find_blockchain_supplement(const std::list<crypto::hash>& qblock_ids, std::list<crypto::hash>& hashes, uint64_t& start_height, uint64_t& current_height) const
 {
   LOG_PRINT_L3("Blockchain::" << __func__);
   CRITICAL_REGION_LOCAL(m_blockchain_lock);
 
   // if we can't find the split point, return false
-  if(!find_blockchain_supplement(qblock_ids, resp.start_height))
+  if(!find_blockchain_supplement(qblock_ids, start_height))
   {
     return false;
   }
 
   m_db->block_txn_start(true);
-  resp.total_height = get_current_blockchain_height();
+  current_height = get_current_blockchain_height();
   size_t count = 0;
-  for(size_t i = resp.start_height; i < resp.total_height && count < BLOCKS_IDS_SYNCHRONIZING_DEFAULT_COUNT; i++, count++)
+  for(size_t i = start_height; i < current_height && count < BLOCKS_IDS_SYNCHRONIZING_DEFAULT_COUNT; i++, count++)
   {
-    resp.m_block_ids.push_back(m_db->get_block_hash_from_height(i));
+    hashes.push_back(m_db->get_block_hash_from_height(i));
   }
-  resp.cumulative_difficulty = m_db->get_block_cumulative_difficulty(m_db->height() - 1);
+
   m_db->block_txn_stop();
   return true;
 }
+
+bool Blockchain::find_blockchain_supplement(const std::list<crypto::hash>& qblock_ids, NOTIFY_RESPONSE_CHAIN_ENTRY::request& resp) const
+{
+  LOG_PRINT_L3("Blockchain::" << __func__);
+  CRITICAL_REGION_LOCAL(m_blockchain_lock);
+
+  bool result = find_blockchain_supplement(qblock_ids, resp.m_block_ids, resp.start_height, resp.total_height);
+  resp.cumulative_difficulty = m_db->get_block_cumulative_difficulty(m_db->height() - 1);
+
+  return result;
+}
 //------------------------------------------------------------------
 //FIXME: change argument to std::vector, low priority
 // find split point between ours and foreign blockchain (or start at
@@ -4086,6 +4136,11 @@ bool Blockchain::get_hard_fork_voting_info(uint8_t version, uint32_t &window, ui
   return m_hardfork->get_voting_info(version, window, votes, threshold, earliest_height, voting);
 }
 
+uint64_t Blockchain::get_difficulty_target() const
+{
+  return get_current_hard_fork_version() < 2 ? DIFFICULTY_TARGET_V1 : DIFFICULTY_TARGET_V2;
+}
+
 std::map<uint64_t, std::tuple<uint64_t, uint64_t, uint64_t>> Blockchain:: get_output_histogram(const std::vector<uint64_t> &amounts, bool unlocked, uint64_t recent_cutoff) const
 {
   return m_db->get_output_histogram(amounts, unlocked, recent_cutoff);
diff --git a/src/cryptonote_core/blockchain.h b/src/cryptonote_core/blockchain.h
index b8ea657b4..e2da535cd 100644
--- a/src/cryptonote_core/blockchain.h
+++ b/src/cryptonote_core/blockchain.h
@@ -374,6 +374,22 @@ namespace cryptonote
      * BLOCKS_IDS_SYNCHRONIZING_DEFAULT_COUNT additional (more recent) hashes.
      *
      * @param qblock_ids the foreign chain's "short history" (see get_short_chain_history)
+     * @param hashes the hashes to be returned, return-by-reference
+     * @param start_height the start height, return-by-reference
+     * @param current_height the current blockchain height, return-by-reference
+     *
+     * @return true if a block found in common, else false
+     */
+    bool find_blockchain_supplement(const std::list<crypto::hash>& qblock_ids, std::list<crypto::hash>& hashes, uint64_t& start_height, uint64_t& current_height) const;
+
+    /**
+     * @brief get recent block hashes for a foreign chain
+     *
+     * Find the split point between us and foreign blockchain and return
+     * (by reference) the most recent common block hash along with up to
+     * BLOCKS_IDS_SYNCHRONIZING_DEFAULT_COUNT additional (more recent) hashes.
+     *
+     * @param qblock_ids the foreign chain's "short history" (see get_short_chain_history)
      * @param resp return-by-reference the split height and subsequent blocks' hashes
      *
      * @return true if a block found in common, else false
@@ -427,6 +443,35 @@ namespace cryptonote
     bool handle_get_objects(NOTIFY_REQUEST_GET_OBJECTS::request& arg, NOTIFY_RESPONSE_GET_OBJECTS::request& rsp);
 
     /**
+     * @brief get number of outputs of an amount past the minimum spendable age
+     *
+     * @param amount the output amount
+     *
+     * @return the number of mature outputs
+     */
+    uint64_t get_num_mature_outputs(uint64_t amount) const;
+
+    /**
+     * @brief get random outputs (indices) for an amount
+     *
+     * @param amount the amount
+     * @param count the number of random outputs to choose
+     *
+     * @return the outputs' amount-global indices
+     */
+    std::vector<uint64_t> get_random_outputs(uint64_t amount, uint64_t count) const;
+
+    /**
+     * @brief get the public key for an output
+     *
+     * @param amount the output amount
+     * @param global_index the output amount-global index
+     *
+     * @return the public key
+     */
+    crypto::public_key get_output_key(uint64_t amount, uint64_t global_index) const;
+
+    /**
      * @brief gets random outputs to mix with
      *
      * This function takes an RPC request for outputs to mix with
@@ -458,6 +503,17 @@ namespace cryptonote
     bool get_outs(const COMMAND_RPC_GET_OUTPUTS_BIN::request& req, COMMAND_RPC_GET_OUTPUTS_BIN::response& res) const;
 
     /**
+     * @brief gets an output's key and unlocked state
+     *
+     * @param amount in - the output amount
+     * @param index in - the output global amount index
+     * @param mask out - the output's RingCT mask
+     * @param key out - the output's key
+     * @param unlocked out - the output's unlocked state
+     */
+    void get_output_key_mask_unlocked(const uint64_t& amount, const uint64_t& index, crypto::public_key& key, rct::key& mask, bool& unlocked) const;
+
+    /**
      * @brief gets random ringct outputs to mix with
      *
      * This function takes an RPC request for outputs to mix with
@@ -775,6 +831,13 @@ namespace cryptonote
     bool get_hard_fork_voting_info(uint8_t version, uint32_t &window, uint32_t &votes, uint32_t &threshold, uint64_t &earliest_height, uint8_t &voting) const;
 
     /**
+     * @brief get difficulty target based on chain and hardfork version
+     *
+     * @return difficulty target
+     */
+    uint64_t get_difficulty_target() const;
+
+    /**
      * @brief remove transactions from the transaction pool (if present)
      *
      * @param txids a list of hashes of transactions to be removed
diff --git a/src/cryptonote_core/cryptonote_core.cpp b/src/cryptonote_core/cryptonote_core.cpp
index c3aeb15f0..01ee64b78 100644
--- a/src/cryptonote_core/cryptonote_core.cpp
+++ b/src/cryptonote_core/cryptonote_core.cpp
@@ -810,6 +810,13 @@ namespace cryptonote
     return BLOCKS_SYNCHRONIZING_DEFAULT_COUNT_PRE_V4;
   }
   //-----------------------------------------------------------------------------------------------
+  bool core::are_key_images_spent_in_pool(const std::vector<crypto::key_image>& key_im, std::vector<bool> &spent) const
+  {
+    spent.clear();
+
+    return m_mempool.check_for_key_images(key_im, spent);
+  }
+  //-----------------------------------------------------------------------------------------------
   std::pair<uint64_t, uint64_t> core::get_coinbase_tx_sum(const uint64_t start_offset, const size_t count)
   {
     uint64_t emission_amount = 0;
@@ -1200,6 +1207,11 @@ namespace cryptonote
     return m_mempool.get_transactions_and_spent_keys_info(tx_infos, key_image_infos);
   }
   //-----------------------------------------------------------------------------------------------
+  bool core::get_pool_for_rpc(std::vector<cryptonote::rpc::tx_in_pool>& tx_infos, cryptonote::rpc::key_images_with_tx_hashes& key_image_infos) const
+  {
+    return m_mempool.get_pool_for_rpc(tx_infos, key_image_infos);
+  }
+  //-----------------------------------------------------------------------------------------------
   bool core::get_short_chain_history(std::list<crypto::hash>& ids) const
   {
     return m_blockchain_storage.get_short_chain_history(ids);
diff --git a/src/cryptonote_core/cryptonote_core.h b/src/cryptonote_core/cryptonote_core.h
index 8e17569a9..a9ee9e9d0 100644
--- a/src/cryptonote_core/cryptonote_core.h
+++ b/src/cryptonote_core/cryptonote_core.h
@@ -463,6 +463,13 @@ namespace cryptonote
      bool get_pool_transactions_and_spent_keys_info(std::vector<tx_info>& tx_infos, std::vector<spent_key_image_info>& key_image_infos) const;
 
      /**
+      * @copydoc tx_memory_pool::get_pool_for_rpc
+      *
+      * @note see tx_memory_pool::get_pool_for_rpc
+      */
+     bool get_pool_for_rpc(std::vector<cryptonote::rpc::tx_in_pool>& tx_infos, cryptonote::rpc::key_images_with_tx_hashes& key_image_infos) const;
+
+     /**
       * @copydoc tx_memory_pool::get_transactions_count
       *
       * @note see tx_memory_pool::get_transactions_count
@@ -708,6 +715,16 @@ namespace cryptonote
      bool are_key_images_spent(const std::vector<crypto::key_image>& key_im, std::vector<bool> &spent) const;
 
      /**
+      * @brief check if multiple key images are spent in the transaction pool
+      *
+      * @param key_im list of key images to check
+      * @param spent return-by-reference result for each image checked
+      *
+      * @return true
+      */
+     bool are_key_images_spent_in_pool(const std::vector<crypto::key_image>& key_im, std::vector<bool> &spent) const;
+
+     /**
       * @brief get the number of blocks to sync in one go
       *
       * @return the number of blocks to sync in one go
diff --git a/src/cryptonote_core/tx_pool.cpp b/src/cryptonote_core/tx_pool.cpp
index e61d95ac3..54d3ec0da 100644
--- a/src/cryptonote_core/tx_pool.cpp
+++ b/src/cryptonote_core/tx_pool.cpp
@@ -684,6 +684,65 @@ namespace cryptonote
     return true;
   }
   //---------------------------------------------------------------------------------
+  bool tx_memory_pool::get_pool_for_rpc(std::vector<cryptonote::rpc::tx_in_pool>& tx_infos, cryptonote::rpc::key_images_with_tx_hashes& key_image_infos) const
+  {
+    CRITICAL_REGION_LOCAL(m_transactions_lock);
+    CRITICAL_REGION_LOCAL1(m_blockchain);
+    m_blockchain.for_all_txpool_txes([&tx_infos, key_image_infos](const crypto::hash &txid, const txpool_tx_meta_t &meta, const cryptonote::blobdata *bd){
+      cryptonote::rpc::tx_in_pool txi;
+      txi.tx_hash = txid;
+      transaction tx;
+      if (!parse_and_validate_tx_from_blob(*bd, tx))
+      {
+        MERROR("Failed to parse tx from txpool");
+        // continue
+        return true;
+      }
+      txi.tx = tx;
+      txi.blob_size = meta.blob_size;
+      txi.fee = meta.fee;
+      txi.kept_by_block = meta.kept_by_block;
+      txi.max_used_block_height = meta.max_used_block_height;
+      txi.max_used_block_hash = meta.max_used_block_id;
+      txi.last_failed_block_height = meta.last_failed_height;
+      txi.last_failed_block_hash = meta.last_failed_id;
+      txi.receive_time = meta.receive_time;
+      txi.relayed = meta.relayed;
+      txi.last_relayed_time = meta.last_relayed_time;
+      txi.do_not_relay = meta.do_not_relay;
+      tx_infos.push_back(txi);
+      return true;
+    }, true);
+
+    for (const key_images_container::value_type& kee : m_spent_key_images) {
+      std::vector<crypto::hash> tx_hashes;
+      const std::unordered_set<crypto::hash>& kei_image_set = kee.second;
+      for (const crypto::hash& tx_id_hash : kei_image_set)
+      {
+        tx_hashes.push_back(tx_id_hash);
+      }
+
+      const crypto::key_image& k_image = kee.first;
+      key_image_infos[k_image] = tx_hashes;
+    }
+    return true;
+  }
+  //---------------------------------------------------------------------------------
+  bool tx_memory_pool::check_for_key_images(const std::vector<crypto::key_image>& key_images, std::vector<bool> spent) const
+  {
+    CRITICAL_REGION_LOCAL(m_transactions_lock);
+    CRITICAL_REGION_LOCAL1(m_blockchain);
+
+    spent.clear();
+
+    for (const auto& image : key_images)
+    {
+      spent.push_back(m_spent_key_images.find(image) == m_spent_key_images.end() ? false : true);
+    }
+
+    return true;
+  }
+  //---------------------------------------------------------------------------------
   bool tx_memory_pool::get_transaction(const crypto::hash& id, cryptonote::blobdata& txblob) const
   {
     CRITICAL_REGION_LOCAL(m_transactions_lock);
diff --git a/src/cryptonote_core/tx_pool.h b/src/cryptonote_core/tx_pool.h
index 6414620c9..3e4ccb338 100644
--- a/src/cryptonote_core/tx_pool.h
+++ b/src/cryptonote_core/tx_pool.h
@@ -46,6 +46,7 @@
 #include "blockchain_db/blockchain_db.h"
 #include "crypto/hash.h"
 #include "rpc/core_rpc_server_commands_defs.h"
+#include "rpc/message_data_structs.h"
 
 namespace cryptonote
 {
@@ -269,6 +270,28 @@ namespace cryptonote
     bool get_transactions_and_spent_keys_info(std::vector<tx_info>& tx_infos, std::vector<spent_key_image_info>& key_image_infos) const;
 
     /**
+     * @brief get information about all transactions and key images in the pool
+     *
+     * see documentation on tx_in_pool and key_images_with_tx_hashes for more details
+     *
+     * @param tx_infos [out] the transactions' information
+     * @param key_image_infos [out] the spent key images' information
+     *
+     * @return true
+     */
+    bool get_pool_for_rpc(std::vector<cryptonote::rpc::tx_in_pool>& tx_infos, cryptonote::rpc::key_images_with_tx_hashes& key_image_infos) const;
+
+    /**
+     * @brief check for presence of key images in the pool
+     *
+     * @param key_images [in] vector of key images to check
+     * @param spent [out] vector of bool to return
+     *
+     * @return true
+     */
+    bool check_for_key_images(const std::vector<crypto::key_image>& key_images, std::vector<bool> spent) const;
+
+    /**
      * @brief get a specific transaction from the pool
      *
      * @param h the hash of the transaction to get
diff --git a/src/daemon/CMakeLists.txt b/src/daemon/CMakeLists.txt
index 795442a2d..782667867 100644
--- a/src/daemon/CMakeLists.txt
+++ b/src/daemon/CMakeLists.txt
@@ -92,12 +92,15 @@ target_link_libraries(daemon
     p2p
     cryptonote_protocol
     daemonizer
+    serialization
+    daemon_rpc_server
     ${Boost_CHRONO_LIBRARY}
     ${Boost_FILESYSTEM_LIBRARY}
     ${Boost_PROGRAM_OPTIONS_LIBRARY}
     ${Boost_REGEX_LIBRARY}
     ${Boost_SYSTEM_LIBRARY}
     ${CMAKE_THREAD_LIBS_INIT}
+    ${ZMQ_LIB}
     ${EXTRA_LIBRARIES})
 add_dependencies(daemon version)
 set_property(TARGET daemon
diff --git a/src/daemon/command_line_args.h b/src/daemon/command_line_args.h
index 8eb3db195..f19d5cc63 100644
--- a/src/daemon/command_line_args.h
+++ b/src/daemon/command_line_args.h
@@ -64,6 +64,25 @@ namespace daemon_args
   , "Max number of threads to use for a parallel job"
   , 0
   };
+
+  const command_line::arg_descriptor<std::string> arg_zmq_rpc_bind_ip   = {
+    "zmq-rpc-bind-ip"
+      , "IP for ZMQ RPC server to listen on"
+      , "127.0.0.1"
+  };
+
+  const command_line::arg_descriptor<std::string> arg_zmq_rpc_bind_port = {
+    "zmq-rpc-bind-port"
+      , "Port for ZMQ RPC server to listen on"
+      , std::to_string(config::ZMQ_RPC_DEFAULT_PORT)
+  };
+
+  const command_line::arg_descriptor<std::string> arg_zmq_testnet_rpc_bind_port = {
+    "zmq-testnet-rpc-bind-port"
+      , "Port for testnet ZMQ RPC server to listen on"
+      , std::to_string(config::testnet::ZMQ_RPC_DEFAULT_PORT)
+  };
+
 }  // namespace daemon_args
 
 #endif // DAEMON_COMMAND_LINE_ARGS_H
diff --git a/src/daemon/daemon.cpp b/src/daemon/daemon.cpp
index 683eaf4ff..faa620c54 100644
--- a/src/daemon/daemon.cpp
+++ b/src/daemon/daemon.cpp
@@ -32,6 +32,8 @@
 #include <stdexcept>
 #include "misc_log_ex.h"
 #include "daemon/daemon.h"
+#include "rpc/daemon_handler.h"
+#include "rpc/zmq_server.h"
 
 #include "common/password.h"
 #include "common/util.h"
@@ -85,7 +87,18 @@ t_daemon::t_daemon(
     boost::program_options::variables_map const & vm
   )
   : mp_internals{new t_internals{vm}}
-{}
+{
+  bool testnet = command_line::get_arg(vm, command_line::arg_testnet_on);
+  if (testnet)
+  {
+    zmq_rpc_bind_port = command_line::get_arg(vm, daemon_args::arg_zmq_testnet_rpc_bind_port);
+  }
+  else
+  {
+    zmq_rpc_bind_port = command_line::get_arg(vm, daemon_args::arg_zmq_rpc_bind_port);
+  }
+  zmq_rpc_bind_address = command_line::get_arg(vm, daemon_args::arg_zmq_rpc_bind_ip);
+}
 
 t_daemon::~t_daemon() = default;
 
@@ -133,6 +146,30 @@ bool t_daemon::run(bool interactive)
       rpc_commands->start_handling(std::bind(&daemonize::t_daemon::stop_p2p, this));
     }
 
+    cryptonote::rpc::DaemonHandler rpc_daemon_handler(mp_internals->core.get(), mp_internals->p2p.get());
+    cryptonote::rpc::ZmqServer zmq_server(rpc_daemon_handler);
+
+    if (!zmq_server.addTCPSocket(zmq_rpc_bind_address, zmq_rpc_bind_port))
+    {
+      LOG_ERROR(std::string("Failed to add TCP Socket (") + zmq_rpc_bind_address
+          + ":" + zmq_rpc_bind_port + ") to ZMQ RPC Server");
+
+      if (interactive)
+      {
+        rpc_commands->stop_handling();
+      }
+
+      mp_internals->rpc.stop();
+
+      return false;
+    }
+
+    MINFO("Starting ZMQ server...");
+    zmq_server.run();
+
+    MINFO(std::string("ZMQ server started at ") + zmq_rpc_bind_address
+          + ":" + zmq_rpc_bind_port + ".");
+
     mp_internals->p2p.run(); // blocks until p2p goes down
 
     if (rpc_commands)
@@ -140,6 +177,8 @@ bool t_daemon::run(bool interactive)
       rpc_commands->stop_handling();
     }
 
+    zmq_server.stop();
+
     mp_internals->rpc.stop();
     mp_internals->core.get().get_miner().stop();
     MGINFO("Node stopped.");
diff --git a/src/daemon/daemon.h b/src/daemon/daemon.h
index 2b9f18669..8c7547f62 100644
--- a/src/daemon/daemon.h
+++ b/src/daemon/daemon.h
@@ -43,6 +43,8 @@ private:
   void stop_p2p();
 private:
   std::unique_ptr<t_internals> mp_internals;
+  std::string zmq_rpc_bind_address;
+  std::string zmq_rpc_bind_port;
 public:
   t_daemon(
       boost::program_options::variables_map const & vm
diff --git a/src/daemon/main.cpp b/src/daemon/main.cpp
index 44d2dae43..8f6d542b6 100644
--- a/src/daemon/main.cpp
+++ b/src/daemon/main.cpp
@@ -89,6 +89,9 @@ int main(int argc, char const * argv[])
       command_line::add_arg(core_settings, daemon_args::arg_log_file, default_log.string());
       command_line::add_arg(core_settings, daemon_args::arg_log_level);
       command_line::add_arg(core_settings, daemon_args::arg_max_concurrency);
+      command_line::add_arg(core_settings, daemon_args::arg_zmq_rpc_bind_ip);
+      command_line::add_arg(core_settings, daemon_args::arg_zmq_rpc_bind_port);
+      command_line::add_arg(core_settings, daemon_args::arg_zmq_testnet_rpc_bind_port);
 
       daemonizer::init_options(hidden_options, visible_options);
       daemonize::t_executor::init_options(core_settings);
diff --git a/src/rpc/CMakeLists.txt b/src/rpc/CMakeLists.txt
index f6037d7e3..b5c38b1a8 100644
--- a/src/rpc/CMakeLists.txt
+++ b/src/rpc/CMakeLists.txt
@@ -30,20 +30,61 @@ set(rpc_sources
   core_rpc_server.cpp
   rpc_args.cpp)
 
+set(daemon_messages_sources
+  message.cpp
+  daemon_messages.cpp)
+
+set(daemon_rpc_server_sources
+  daemon_handler.cpp
+  zmq_server.cpp)
+
+
 set(rpc_headers
   rpc_args.h)
 
-set(rpc_private_headers
+set(daemon_rpc_server_headers)
+
+
+set(rpc_daemon_private_headers
   core_rpc_server.h
   core_rpc_server_commands_defs.h
   core_rpc_server_error_codes.h)
 
+set(daemon_messages_private_headers
+  message.h
+  daemon_messages.h)
+
+set(daemon_rpc_server_private_headers
+  message.h
+  daemon_messages.h
+  daemon_handler.h
+  rpc_handler.h
+  zmq_server.h)
+
+
 monero_private_headers(rpc
   ${rpc_private_headers})
+
+monero_private_headers(daemon_rpc_server
+  ${daemon_rpc_server_private_headers})
+
+
 monero_add_library(rpc
   ${rpc_sources}
   ${rpc_headers}
   ${rpc_private_headers})
+
+monero_add_library(daemon_messages
+  ${daemon_messages_sources}
+  ${daemon_messages_headers}
+  ${daemon_messages_private_headers})
+
+monero_add_library(daemon_rpc_server
+  ${daemon_rpc_server_sources}
+  ${daemon_rpc_server_headers}
+  ${daemon_rpc_server_private_headers})
+
+
 target_link_libraries(rpc
   PUBLIC
     common
@@ -54,5 +95,32 @@ target_link_libraries(rpc
     ${Boost_THREAD_LIBRARY}
   PRIVATE
     ${EXTRA_LIBRARIES})
+
+target_link_libraries(daemon_messages
+  LINK_PRIVATE
+    cryptonote_core
+    cryptonote_protocol
+    serialization
+    ${EXTRA_LIBRARIES})
+
+target_link_libraries(daemon_rpc_server
+  LINK_PRIVATE
+    cryptonote_core
+    cryptonote_protocol
+    daemon_messages
+    serialization
+    ${Boost_CHRONO_LIBRARY}
+    ${Boost_REGEX_LIBRARY}
+    ${Boost_SYSTEM_LIBRARY}
+    ${Boost_THREAD_LIBRARY}
+    ${ZMQ_LIB}
+    ${EXTRA_LIBRARIES})
+target_include_directories(daemon_rpc_server PUBLIC ${ZMQ_INCLUDE_PATH})
+target_include_directories(obj_daemon_rpc_server PUBLIC ${ZMQ_INCLUDE_PATH})
+
+
 add_dependencies(rpc
   version)
+
+add_dependencies(daemon_rpc_server
+  version)
diff --git a/src/rpc/core_rpc_server.cpp b/src/rpc/core_rpc_server.cpp
index a6a61705b..1f7f4a1ff 100644
--- a/src/rpc/core_rpc_server.cpp
+++ b/src/rpc/core_rpc_server.cpp
@@ -137,7 +137,7 @@ namespace cryptonote
     res.top_block_hash = string_tools::pod_to_hex(top_hash);
     res.target_height = m_core.get_target_blockchain_height();
     res.difficulty = m_core.get_blockchain_storage().get_difficulty_for_next_block();
-    res.target = m_core.get_blockchain_storage().get_current_hard_fork_version() < 2 ? DIFFICULTY_TARGET_V1 : DIFFICULTY_TARGET_V2;
+    res.target = m_core.get_blockchain_storage().get_difficulty_target();
     res.tx_count = m_core.get_blockchain_storage().get_total_transactions() - res.height; //without coinbase
     res.tx_pool_size = m_core.get_pool_transactions_count();
     res.alt_blocks_count = m_core.get_blockchain_storage().get_alternative_blocks_count();
diff --git a/src/rpc/daemon_handler.cpp b/src/rpc/daemon_handler.cpp
new file mode 100644
index 000000000..53eeb5e76
--- /dev/null
+++ b/src/rpc/daemon_handler.cpp
@@ -0,0 +1,887 @@
+// Copyright (c) 2017, The Monero Project
+// 
+// All rights reserved.
+// 
+// Redistribution and use in source and binary forms, with or without modification, are
+// permitted provided that the following conditions are met:
+// 
+// 1. Redistributions of source code must retain the above copyright notice, this list of
+//    conditions and the following disclaimer.
+// 
+// 2. Redistributions in binary form must reproduce the above copyright notice, this list
+//    of conditions and the following disclaimer in the documentation and/or other
+//    materials provided with the distribution.
+// 
+// 3. Neither the name of the copyright holder nor the names of its contributors may be
+//    used to endorse or promote products derived from this software without specific
+//    prior written permission.
+// 
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
+// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
+// THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+// STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
+// THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+#include "daemon_handler.h"
+
+// likely included by daemon_handler.h's includes,
+// but including here for clarity
+#include "cryptonote_core/cryptonote_core.h"
+#include "cryptonote_basic/cryptonote_format_utils.h"
+#include "cryptonote_protocol/blobdatatype.h"
+#include "ringct/rctSigs.h"
+
+namespace cryptonote
+{
+
+namespace rpc
+{
+
+  void DaemonHandler::handle(const GetHeight::Request& req, GetHeight::Response& res)
+  {
+    res.height = m_core.get_current_blockchain_height();
+
+    res.status = Message::STATUS_OK;
+  }
+
+  void DaemonHandler::handle(const GetBlocksFast::Request& req, GetBlocksFast::Response& res)
+  {
+    std::list<std::pair<blobdata, std::list<blobdata> > > blocks;
+
+    if(!m_core.find_blockchain_supplement(req.start_height, req.block_ids, blocks, res.current_height, res.start_height, COMMAND_RPC_GET_BLOCKS_FAST_MAX_COUNT))
+    {
+      res.status = Message::STATUS_FAILED;
+      res.error_details = "core::find_blockchain_supplement() returned false";
+      return;
+    }
+
+    res.blocks.resize(blocks.size());
+    res.output_indices.resize(blocks.size());
+
+    //TODO: really need to switch uses of std::list to std::vector unless
+    //      it's a huge performance concern
+
+    auto it = blocks.begin();
+
+    uint64_t block_count = 0;
+    while (it != blocks.end())
+    {
+      cryptonote::rpc::block_with_transactions& bwt = res.blocks[block_count];
+
+      if (!parse_and_validate_block_from_blob(it->first, bwt.block))
+      {
+        res.blocks.clear();
+        res.output_indices.clear();
+        res.status = Message::STATUS_FAILED;
+        res.error_details = "failed retrieving a requested block";
+        return;
+      }
+
+      if (it->second.size() != bwt.block.tx_hashes.size())
+      {
+          res.blocks.clear();
+          res.output_indices.clear();
+          res.status = Message::STATUS_FAILED;
+          res.error_details = "incorrect number of transactions retrieved for block";
+          return;
+      }
+      std::list<transaction> txs;
+      for (const auto& blob : it->second)
+      {
+        txs.resize(txs.size() + 1);
+        if (!parse_and_validate_tx_from_blob(blob, txs.back()))
+        {
+          res.blocks.clear();
+          res.output_indices.clear();
+          res.status = Message::STATUS_FAILED;
+          res.error_details = "failed retrieving a requested transaction";
+          return;
+        }
+      }
+
+      cryptonote::rpc::block_output_indices& indices = res.output_indices[block_count];
+
+      // miner tx output indices
+      {
+        cryptonote::rpc::tx_output_indices tx_indices;
+        bool r = m_core.get_tx_outputs_gindexs(get_transaction_hash(bwt.block.miner_tx), tx_indices);
+        if (!r)
+        {
+          res.status = Message::STATUS_FAILED;
+          res.error_details = "core::get_tx_outputs_gindexs() returned false";
+          return;
+        }
+        indices.push_back(tx_indices);
+      }
+
+      // assume each block returned is returned with all its transactions
+      // in the correct order.
+      auto tx_it = txs.begin();
+      for (const crypto::hash& h : bwt.block.tx_hashes)
+      {
+        bwt.transactions.emplace(h, *tx_it);
+        tx_it++;
+
+        cryptonote::rpc::tx_output_indices tx_indices;
+        bool r = m_core.get_tx_outputs_gindexs(h, tx_indices);
+        if (!r)
+        {
+          res.status = Message::STATUS_FAILED;
+          res.error_details = "core::get_tx_outputs_gindexs() returned false";
+          return;
+        }
+
+        indices.push_back(tx_indices);
+      }
+
+      it++;
+      block_count++;
+    }
+
+    res.status = Message::STATUS_OK;
+  }
+
+  void DaemonHandler::handle(const GetHashesFast::Request& req, GetHashesFast::Response& res)
+  {
+    res.start_height = req.start_height;
+
+    auto& chain = m_core.get_blockchain_storage();
+
+    if (!chain.find_blockchain_supplement(req.known_hashes, res.hashes, res.start_height, res.current_height))
+    {
+      res.status = Message::STATUS_FAILED;
+      res.error_details = "Blockchain::find_blockchain_supplement() returned false";
+      return;
+    }
+
+    res.status = Message::STATUS_OK;
+  }
+
+  void DaemonHandler::handle(const GetTransactions::Request& req, GetTransactions::Response& res)
+  {
+    std::list<cryptonote::transaction> found_txs;
+    std::list<crypto::hash> missed_hashes;
+
+    bool r = m_core.get_transactions(req.tx_hashes, found_txs, missed_hashes);
+
+    // TODO: consider fixing core::get_transactions to not hide exceptions
+    if (!r)
+    {
+      res.status = Message::STATUS_FAILED;
+      res.error_details = "core::get_transactions() returned false (exception caught there)";
+      return;
+    }
+
+    size_t num_found = found_txs.size();
+
+    // std::list is annoying
+    std::vector<cryptonote::transaction> found_txs_vec
+    {
+      std::make_move_iterator(std::begin(found_txs)),
+      std::make_move_iterator(std::end(found_txs))
+    };
+
+    std::vector<crypto::hash> missed_vec
+    {
+      std::make_move_iterator(std::begin(missed_hashes)),
+      std::make_move_iterator(std::end(missed_hashes))
+    };
+
+    std::vector<uint64_t> heights(num_found);
+    std::vector<bool> in_pool(num_found, false);
+    std::vector<crypto::hash> found_hashes(num_found);
+
+    for (size_t i=0; i < num_found; i++)
+    {
+      found_hashes[i] = get_transaction_hash(found_txs_vec[i]);
+      heights[i] = m_core.get_blockchain_storage().get_db().get_tx_block_height(found_hashes[i]);
+    }
+
+    // if any missing from blockchain, check in tx pool
+    if (!missed_vec.empty())
+    {
+      std::list<cryptonote::transaction> pool_txs;
+
+      m_core.get_pool_transactions(pool_txs);
+
+      for (const auto& tx : pool_txs)
+      {
+        crypto::hash h = get_transaction_hash(tx);
+
+        auto itr = std::find(missed_vec.begin(), missed_vec.end(), h);
+
+        if (itr != missed_vec.end())
+        {
+          found_hashes.push_back(h);
+          found_txs_vec.push_back(tx);
+          heights.push_back(std::numeric_limits<uint64_t>::max());
+          in_pool.push_back(true);
+          missed_vec.erase(itr);
+        }
+      }
+    }
+
+    for (size_t i=0; i < found_hashes.size(); i++)
+    {
+      cryptonote::rpc::transaction_info info;
+      info.height = heights[i];
+      info.in_pool = in_pool[i];
+      info.transaction = std::move(found_txs_vec[i]);
+
+      res.txs.emplace(found_hashes[i], std::move(info));
+    }
+                                      
+    res.missed_hashes = std::move(missed_vec);
+    res.status = Message::STATUS_OK;
+  }
+
+  void DaemonHandler::handle(const KeyImagesSpent::Request& req, KeyImagesSpent::Response& res)
+  {
+    res.spent_status.resize(req.key_images.size(), KeyImagesSpent::STATUS::UNSPENT);
+
+    std::vector<bool> chain_spent_status;
+    std::vector<bool> pool_spent_status;
+
+    m_core.are_key_images_spent(req.key_images, chain_spent_status);
+    m_core.are_key_images_spent_in_pool(req.key_images, pool_spent_status);
+
+    if ((chain_spent_status.size() != req.key_images.size()) || (pool_spent_status.size() != req.key_images.size()))
+    {
+      res.status = Message::STATUS_FAILED;
+      res.error_details = "tx_pool::have_key_images_as_spent() gave vectors of wrong size(s).";
+      return;
+    }
+
+    for(size_t i=0; i < req.key_images.size(); i++)
+    {
+      if ( chain_spent_status[i] )
+      {
+        res.spent_status[i] = KeyImagesSpent::STATUS::SPENT_IN_BLOCKCHAIN;
+      }
+      else if ( pool_spent_status[i] )
+      {
+        res.spent_status[i] = KeyImagesSpent::STATUS::SPENT_IN_POOL;
+      }
+    }
+
+    res.status = Message::STATUS_OK;
+  }
+
+  void DaemonHandler::handle(const GetTxGlobalOutputIndices::Request& req, GetTxGlobalOutputIndices::Response& res)
+  {
+    if (!m_core.get_tx_outputs_gindexs(req.tx_hash, res.output_indices))
+    {
+      res.status = Message::STATUS_FAILED;
+      res.error_details = "core::get_tx_outputs_gindexs() returned false";
+      return;
+    }
+
+    res.status = Message::STATUS_OK;
+
+  }
+
+  //TODO: handle "restricted" RPC
+  void DaemonHandler::handle(const GetRandomOutputsForAmounts::Request& req, GetRandomOutputsForAmounts::Response& res)
+  {
+    auto& chain = m_core.get_blockchain_storage();
+
+    try
+    {
+      for (const uint64_t& amount : req.amounts)
+      {
+        std::vector<uint64_t> indices = chain.get_random_outputs(amount, req.count);
+
+        outputs_for_amount ofa;
+
+        ofa.resize(indices.size());
+
+        for (size_t i = 0; i < indices.size(); i++)
+        {
+          crypto::public_key key = chain.get_output_key(amount, indices[i]);
+          ofa[i].amount_index = indices[i];
+          ofa[i].key = key;
+        }
+
+        amount_with_random_outputs amt;
+        amt.amount = amount;
+        amt.outputs = ofa;
+
+        res.amounts_with_outputs.push_back(amt);
+      }
+
+      res.status = Message::STATUS_OK;
+    }
+    catch (const std::exception& e)
+    {
+      res.status = Message::STATUS_FAILED;
+      res.error_details = e.what();
+    }
+  }
+
+  void DaemonHandler::handle(const SendRawTx::Request& req, SendRawTx::Response& res)
+  {
+    auto tx_blob = cryptonote::tx_to_blob(req.tx);
+
+    cryptonote_connection_context fake_context = AUTO_VAL_INIT(fake_context);
+    tx_verification_context tvc = AUTO_VAL_INIT(tvc);
+
+    if(!m_core.handle_incoming_tx(tx_blob, tvc, false, false, !req.relay) || tvc.m_verifivation_failed)
+    {
+      if (tvc.m_verifivation_failed)
+      {
+        LOG_PRINT_L0("[on_send_raw_tx]: tx verification failed");
+      }
+      else
+      {
+        LOG_PRINT_L0("[on_send_raw_tx]: Failed to process tx");
+      }
+      res.status = Message::STATUS_FAILED;
+      res.error_details = "";
+
+      if (tvc.m_low_mixin)
+      {
+        res.error_details = "mixin too low";
+      }
+      if (tvc.m_double_spend)
+      {
+        if (!res.error_details.empty()) res.error_details += " and ";
+        res.error_details = "double spend";
+      }
+      if (tvc.m_invalid_input)
+      {
+        if (!res.error_details.empty()) res.error_details += " and ";
+        res.error_details = "invalid input";
+      }
+      if (tvc.m_invalid_output)
+      {
+        if (!res.error_details.empty()) res.error_details += " and ";
+        res.error_details = "invalid output";
+      }
+      if (tvc.m_too_big)
+      {
+        if (!res.error_details.empty()) res.error_details += " and ";
+        res.error_details = "too big";
+      }
+      if (tvc.m_overspend)
+      {
+        if (!res.error_details.empty()) res.error_details += " and ";
+        res.error_details = "overspend";
+      }
+      if (tvc.m_fee_too_low)
+      {
+        if (!res.error_details.empty()) res.error_details += " and ";
+        res.error_details = "fee too low";
+      }
+      if (tvc.m_not_rct)
+      {
+        if (!res.error_details.empty()) res.error_details += " and ";
+        res.error_details = "tx is not ringct";
+      }
+      if (res.error_details.empty())
+      {
+        res.error_details = "an unknown issue was found with the transaction";
+      }
+
+      return;
+    }
+
+    if(!tvc.m_should_be_relayed || !req.relay)
+    {
+      LOG_PRINT_L0("[on_send_raw_tx]: tx accepted, but not relayed");
+      res.error_details = "Not relayed";
+      res.relayed = false;
+      res.status = Message::STATUS_OK;
+
+      return;
+    }
+
+    NOTIFY_NEW_TRANSACTIONS::request r;
+    r.txs.push_back(tx_blob);
+    m_core.get_protocol()->relay_transactions(r, fake_context);
+
+    //TODO: make sure that tx has reached other nodes here, probably wait to receive reflections from other nodes
+    res.status = Message::STATUS_OK;
+    res.relayed = true;
+
+    return;
+  }
+
+  void DaemonHandler::handle(const StartMining::Request& req, StartMining::Response& res)
+  {
+    account_public_address adr;
+    if(!get_account_address_from_str(adr, m_core.get_testnet(), req.miner_address))
+    {
+      res.error_details = "Failed, wrong address";
+      LOG_PRINT_L0(res.error_details);
+      res.status = Message::STATUS_FAILED;
+      return;
+    }
+
+    unsigned int concurrency_count = boost::thread::hardware_concurrency() * 4;
+
+    // if we couldn't detect threads, set it to a ridiculously high number
+    if(concurrency_count == 0)
+    {
+      concurrency_count = 257;
+    }
+
+    // if there are more threads requested than the hardware supports
+    // then we fail and log that.
+    if(req.threads_count > concurrency_count)
+    {
+      res.error_details = "Failed, too many threads relative to CPU cores.";
+      LOG_PRINT_L0(res.error_details);
+      res.status = Message::STATUS_FAILED;
+      return;
+    }
+
+    boost::thread::attributes attrs;
+    attrs.set_stack_size(THREAD_STACK_SIZE);
+
+    if(!m_core.get_miner().start(adr, static_cast<size_t>(req.threads_count), attrs, req.do_background_mining, req.ignore_battery))
+    {
+      res.error_details = "Failed, mining not started";
+      LOG_PRINT_L0(res.error_details);
+      res.status = Message::STATUS_FAILED;
+      return;
+    }
+    res.status = Message::STATUS_OK;
+    res.error_details = "";
+
+  }
+
+  void DaemonHandler::handle(const GetInfo::Request& req, GetInfo::Response& res)
+  {
+    res.info.height = m_core.get_current_blockchain_height();
+
+    res.info.target_height = m_core.get_target_blockchain_height();
+
+    if (res.info.height > res.info.target_height)
+    {
+      res.info.target_height = res.info.height;
+    }
+
+    auto& chain = m_core.get_blockchain_storage();
+
+    res.info.difficulty = chain.get_difficulty_for_next_block();
+
+    res.info.target = chain.get_difficulty_target();
+
+    res.info.tx_count = chain.get_total_transactions() - res.info.height; //without coinbase
+
+    res.info.tx_pool_size = m_core.get_pool_transactions_count();
+
+    res.info.alt_blocks_count = chain.get_alternative_blocks_count();
+
+    uint64_t total_conn = m_p2p.get_connections_count();
+    res.info.outgoing_connections_count = m_p2p.get_outgoing_connections_count();
+    res.info.incoming_connections_count = total_conn - res.info.outgoing_connections_count;
+
+    res.info.white_peerlist_size = m_p2p.get_peerlist_manager().get_white_peers_count();
+
+    res.info.grey_peerlist_size = m_p2p.get_peerlist_manager().get_gray_peers_count();
+
+    res.info.testnet = m_core.get_testnet();
+    res.info.cumulative_difficulty = m_core.get_blockchain_storage().get_db().get_block_cumulative_difficulty(res.info.height - 1);
+    res.info.block_size_limit = m_core.get_blockchain_storage().get_current_cumulative_blocksize_limit();
+    res.info.start_time = (uint64_t)m_core.get_start_time();
+
+    res.status = Message::STATUS_OK;
+    res.error_details = "";
+  }
+
+  void DaemonHandler::handle(const StopMining::Request& req, StopMining::Response& res)
+  {
+    if(!m_core.get_miner().stop())
+    {
+      res.error_details = "Failed, mining not stopped";
+      LOG_PRINT_L0(res.error_details);
+      res.status = Message::STATUS_FAILED;
+      return;
+    }
+
+    res.status = Message::STATUS_OK;
+    res.error_details = "";
+  }
+
+  void DaemonHandler::handle(const MiningStatus::Request& req, MiningStatus::Response& res)
+  {
+    const cryptonote::miner& lMiner = m_core.get_miner();
+    res.active = lMiner.is_mining();
+    res.is_background_mining_enabled = lMiner.get_is_background_mining_enabled();
+    
+    if ( lMiner.is_mining() ) {
+      res.speed = lMiner.get_speed();
+      res.threads_count = lMiner.get_threads_count();
+      const account_public_address& lMiningAdr = lMiner.get_mining_address();
+      res.address = get_account_address_as_str(m_core.get_testnet(), lMiningAdr);
+    }
+
+    res.status = Message::STATUS_OK;
+    res.error_details = "";
+  }
+
+  void DaemonHandler::handle(const SaveBC::Request& req, SaveBC::Response& res)
+  {
+    if (!m_core.get_blockchain_storage().store_blockchain())
+    {
+      res.status = Message::STATUS_FAILED;
+      res.error_details = "Error storing the blockchain";
+    }
+    else
+    {
+      res.status = Message::STATUS_OK;
+    }
+  }
+
+  void DaemonHandler::handle(const GetBlockHash::Request& req, GetBlockHash::Response& res)
+  {
+    if (m_core.get_current_blockchain_height() <= req.height)
+    {
+      res.hash = cryptonote::null_hash;
+      res.status = Message::STATUS_FAILED;
+      res.error_details = "height given is higher than current chain height";
+      return;
+    }
+
+    res.hash = m_core.get_block_id_by_height(req.height);
+
+    res.status = Message::STATUS_OK;
+  }
+
+  void DaemonHandler::handle(const GetBlockTemplate::Request& req, GetBlockTemplate::Response& res)
+  {
+    res.status = Message::STATUS_FAILED;
+    res.error_details = "RPC method not yet implemented.";
+  }
+
+  void DaemonHandler::handle(const SubmitBlock::Request& req, SubmitBlock::Response& res)
+  {
+    res.status = Message::STATUS_FAILED;
+    res.error_details = "RPC method not yet implemented.";
+  }
+
+  void DaemonHandler::handle(const GetLastBlockHeader::Request& req, GetLastBlockHeader::Response& res)
+  {
+    const crypto::hash block_hash = m_core.get_tail_id();
+
+    if (!getBlockHeaderByHash(block_hash, res.header))
+    {
+      res.status = Message::STATUS_FAILED;
+      res.error_details = "Requested block does not exist";
+      return;
+    }
+
+    res.status = Message::STATUS_OK;
+  }
+
+  void DaemonHandler::handle(const GetBlockHeaderByHash::Request& req, GetBlockHeaderByHash::Response& res)
+  {
+    if (!getBlockHeaderByHash(req.hash, res.header))
+    {
+      res.status = Message::STATUS_FAILED;
+      res.error_details = "Requested block does not exist";
+      return;
+    }
+
+    res.status = Message::STATUS_OK;
+  }
+
+  void DaemonHandler::handle(const GetBlockHeaderByHeight::Request& req, GetBlockHeaderByHeight::Response& res)
+  {
+    const crypto::hash block_hash = m_core.get_block_id_by_height(req.height);
+
+    if (!getBlockHeaderByHash(block_hash, res.header))
+    {
+      res.status = Message::STATUS_FAILED;
+      res.error_details = "Requested block does not exist";
+      return;
+    }
+
+    res.status = Message::STATUS_OK;
+  }
+
+  void DaemonHandler::handle(const GetBlockHeadersByHeight::Request& req, GetBlockHeadersByHeight::Response& res)
+  {
+    res.headers.resize(req.heights.size());
+
+    for (size_t i=0; i < req.heights.size(); i++)
+    {
+      const crypto::hash block_hash = m_core.get_block_id_by_height(req.heights[i]);
+
+      if (!getBlockHeaderByHash(block_hash, res.headers[i]))
+      {
+        res.status = Message::STATUS_FAILED;
+        res.error_details = "A requested block does not exist";
+        return;
+      }
+    }
+
+    res.status = Message::STATUS_OK;
+  }
+
+  void DaemonHandler::handle(const GetBlock::Request& req, GetBlock::Response& res)
+  {
+    res.status = Message::STATUS_FAILED;
+    res.error_details = "RPC method not yet implemented.";
+  }
+
+  void DaemonHandler::handle(const GetPeerList::Request& req, GetPeerList::Response& res)
+  {
+    res.status = Message::STATUS_FAILED;
+    res.error_details = "RPC method not yet implemented.";
+  }
+
+  void DaemonHandler::handle(const SetLogHashRate::Request& req, SetLogHashRate::Response& res)
+  {
+    res.status = Message::STATUS_FAILED;
+    res.error_details = "RPC method not yet implemented.";
+  }
+
+  void DaemonHandler::handle(const SetLogLevel::Request& req, SetLogLevel::Response& res)
+  {
+    if (req.level < 0 || req.level > 4)
+    {
+      res.status = Message::STATUS_FAILED;
+      res.error_details = "Error: log level not valid";
+    }
+    else
+    {
+      res.status = Message::STATUS_OK;
+      mlog_set_log_level(req.level);
+    }
+  }
+
+  void DaemonHandler::handle(const GetTransactionPool::Request& req, GetTransactionPool::Response& res)
+  {
+    bool r = m_core.get_pool_for_rpc(res.transactions, res.key_images);
+
+    if (!r) res.status = Message::STATUS_FAILED;
+    else res.status = Message::STATUS_OK;
+  }
+
+  void DaemonHandler::handle(const GetConnections::Request& req, GetConnections::Response& res)
+  {
+    res.status = Message::STATUS_FAILED;
+    res.error_details = "RPC method not yet implemented.";
+  }
+
+  void DaemonHandler::handle(const GetBlockHeadersRange::Request& req, GetBlockHeadersRange::Response& res)
+  {
+    res.status = Message::STATUS_FAILED;
+    res.error_details = "RPC method not yet implemented.";
+  }
+
+  void DaemonHandler::handle(const StopDaemon::Request& req, StopDaemon::Response& res)
+  {
+    res.status = Message::STATUS_FAILED;
+    res.error_details = "RPC method not yet implemented.";
+  }
+
+  void DaemonHandler::handle(const StartSaveGraph::Request& req, StartSaveGraph::Response& res)
+  {
+    res.status = Message::STATUS_FAILED;
+    res.error_details = "RPC method not yet implemented.";
+  }
+
+  void DaemonHandler::handle(const StopSaveGraph::Request& req, StopSaveGraph::Response& res)
+  {
+    res.status = Message::STATUS_FAILED;
+    res.error_details = "RPC method not yet implemented.";
+  }
+
+  void DaemonHandler::handle(const HardForkInfo::Request& req, HardForkInfo::Response& res)
+  {
+    const Blockchain &blockchain = m_core.get_blockchain_storage();
+    uint8_t version = req.version > 0 ? req.version : blockchain.get_ideal_hard_fork_version();
+    res.info.version = blockchain.get_current_hard_fork_version();
+    res.info.enabled = blockchain.get_hard_fork_voting_info(version, res.info.window, res.info.votes, res.info.threshold, res.info.earliest_height, res.info.voting);
+    res.info.state = blockchain.get_hard_fork_state();
+    res.status = Message::STATUS_OK;
+  }
+
+  void DaemonHandler::handle(const GetBans::Request& req, GetBans::Response& res)
+  {
+    res.status = Message::STATUS_FAILED;
+    res.error_details = "RPC method not yet implemented.";
+  }
+
+  void DaemonHandler::handle(const SetBans::Request& req, SetBans::Response& res)
+  {
+    res.status = Message::STATUS_FAILED;
+    res.error_details = "RPC method not yet implemented.";
+  }
+
+  void DaemonHandler::handle(const FlushTransactionPool::Request& req, FlushTransactionPool::Response& res)
+  {
+    res.status = Message::STATUS_FAILED;
+    res.error_details = "RPC method not yet implemented.";
+  }
+
+  void DaemonHandler::handle(const GetOutputHistogram::Request& req, GetOutputHistogram::Response& res)
+  {
+    std::map<uint64_t, std::tuple<uint64_t, uint64_t, uint64_t> > histogram;
+    try
+    {
+      histogram = m_core.get_blockchain_storage().get_output_histogram(req.amounts, req.unlocked, req.recent_cutoff);
+    }
+    catch (const std::exception &e)
+    {
+      res.status = Message::STATUS_FAILED;
+      res.error_details = e.what();
+      return;
+    }
+
+    res.histogram.clear();
+    res.histogram.reserve(histogram.size());
+    for (const auto &i: histogram)
+    {
+      if (std::get<0>(i.second) >= req.min_count && (std::get<0>(i.second) <= req.max_count || req.max_count == 0))
+        res.histogram.emplace_back(output_amount_count{i.first, std::get<0>(i.second), std::get<1>(i.second), std::get<2>(i.second)});
+    }
+
+    res.status = Message::STATUS_OK;
+  }
+
+  void DaemonHandler::handle(const GetOutputKeys::Request& req, GetOutputKeys::Response& res)
+  {
+    try
+    {
+      for (const auto& i : req.outputs)
+      {
+        crypto::public_key key;
+        rct::key mask;
+        bool unlocked;
+        m_core.get_blockchain_storage().get_output_key_mask_unlocked(i.amount, i.index, key, mask, unlocked);
+        res.keys.emplace_back(output_key_mask_unlocked{key, mask, unlocked});
+      }
+    }
+    catch (const std::exception& e)
+    {
+      res.status = Message::STATUS_FAILED;
+      res.error_details = e.what();
+      return;
+    }
+
+    res.status = Message::STATUS_OK;
+  }
+
+  void DaemonHandler::handle(const GetRPCVersion::Request& req, GetRPCVersion::Response& res)
+  {
+    res.version = DAEMON_RPC_VERSION_ZMQ;
+    res.status = Message::STATUS_OK;
+  }
+
+  void DaemonHandler::handle(const GetPerKBFeeEstimate::Request& req, GetPerKBFeeEstimate::Response& res)
+  {
+    res.estimated_fee_per_kb = m_core.get_blockchain_storage().get_dynamic_per_kb_fee_estimate(req.num_grace_blocks);
+    res.status = Message::STATUS_OK;
+  }
+
+  bool DaemonHandler::getBlockHeaderByHash(const crypto::hash& hash_in, cryptonote::rpc::BlockHeaderResponse& header)
+  {
+    block b;
+
+    if (!m_core.get_block_by_hash(hash_in, b))
+    {
+      return false;
+    }
+
+    header.hash = hash_in;
+    header.height = boost::get<txin_gen>(b.miner_tx.vin.front()).height;
+
+    header.major_version = b.major_version;
+    header.minor_version = b.minor_version;
+    header.timestamp = b.timestamp;
+    header.nonce = b.nonce;
+    header.prev_id = b.prev_id;
+
+    header.depth = m_core.get_current_blockchain_height() - header.height - 1;
+
+    header.reward = 0;
+    for (const auto& out : b.miner_tx.vout)
+    {
+      header.reward += out.amount;
+    }
+
+    header.difficulty = m_core.get_blockchain_storage().block_difficulty(header.height);
+
+    return true;
+  }
+
+  std::string DaemonHandler::handle(const std::string& request)
+  {
+    MDEBUG("Handling RPC request: " << request);
+
+    Message* resp_message = NULL;
+
+    try
+    {
+      FullMessage req_full(request, true);
+
+      rapidjson::Value& req_json = req_full.getMessage();
+
+      const std::string request_type = req_full.getRequestType();
+
+      // create correct Message subclass and call handle() on it
+      REQ_RESP_TYPES_MACRO(request_type, GetHeight, req_json, resp_message, handle);
+      REQ_RESP_TYPES_MACRO(request_type, GetBlocksFast, req_json, resp_message, handle);
+      REQ_RESP_TYPES_MACRO(request_type, GetHashesFast, req_json, resp_message, handle);
+      REQ_RESP_TYPES_MACRO(request_type, GetTransactions, req_json, resp_message, handle);
+      REQ_RESP_TYPES_MACRO(request_type, KeyImagesSpent, req_json, resp_message, handle);
+      REQ_RESP_TYPES_MACRO(request_type, GetTxGlobalOutputIndices, req_json, resp_message, handle);
+      REQ_RESP_TYPES_MACRO(request_type, GetRandomOutputsForAmounts, req_json, resp_message, handle);
+      REQ_RESP_TYPES_MACRO(request_type, SendRawTx, req_json, resp_message, handle);
+      REQ_RESP_TYPES_MACRO(request_type, GetInfo, req_json, resp_message, handle);
+      REQ_RESP_TYPES_MACRO(request_type, StartMining, req_json, resp_message, handle);
+      REQ_RESP_TYPES_MACRO(request_type, StopMining, req_json, resp_message, handle);
+      REQ_RESP_TYPES_MACRO(request_type, MiningStatus, req_json, resp_message, handle);
+      REQ_RESP_TYPES_MACRO(request_type, SaveBC, req_json, resp_message, handle);
+      REQ_RESP_TYPES_MACRO(request_type, GetBlockHash, req_json, resp_message, handle);
+      REQ_RESP_TYPES_MACRO(request_type, GetLastBlockHeader, req_json, resp_message, handle);
+      REQ_RESP_TYPES_MACRO(request_type, GetBlockHeaderByHash, req_json, resp_message, handle);
+      REQ_RESP_TYPES_MACRO(request_type, GetBlockHeaderByHeight, req_json, resp_message, handle);
+      REQ_RESP_TYPES_MACRO(request_type, GetBlockHeadersByHeight, req_json, resp_message, handle);
+      REQ_RESP_TYPES_MACRO(request_type, GetPeerList, req_json, resp_message, handle);
+      REQ_RESP_TYPES_MACRO(request_type, SetLogLevel, req_json, resp_message, handle);
+      REQ_RESP_TYPES_MACRO(request_type, GetTransactionPool, req_json, resp_message, handle);
+      REQ_RESP_TYPES_MACRO(request_type, HardForkInfo, req_json, resp_message, handle);
+      REQ_RESP_TYPES_MACRO(request_type, GetOutputHistogram, req_json, resp_message, handle);
+      REQ_RESP_TYPES_MACRO(request_type, GetOutputKeys, req_json, resp_message, handle);
+      REQ_RESP_TYPES_MACRO(request_type, GetRPCVersion, req_json, resp_message, handle);
+      REQ_RESP_TYPES_MACRO(request_type, GetPerKBFeeEstimate, req_json, resp_message, handle);
+
+      // if none of the request types matches
+      if (resp_message == NULL)
+      {
+        return BAD_REQUEST(request_type, req_full.getID());
+      }
+
+      FullMessage resp_full = FullMessage::responseMessage(resp_message, req_full.getID());
+
+      const std::string response = resp_full.getJson();
+      delete resp_message;
+      resp_message = NULL;
+
+      MDEBUG("Returning RPC response: " << response);
+
+      return response;
+    }
+    catch (const std::exception& e)
+    {
+      if (resp_message)
+      {
+        delete resp_message;
+      }
+
+      return BAD_JSON(e.what());
+    }
+  }
+
+}  // namespace rpc
+
+}  // namespace cryptonote
diff --git a/src/rpc/daemon_handler.h b/src/rpc/daemon_handler.h
new file mode 100644
index 000000000..0d356bad2
--- /dev/null
+++ b/src/rpc/daemon_handler.h
@@ -0,0 +1,145 @@
+// Copyright (c) 2017, The Monero Project
+// 
+// All rights reserved.
+// 
+// Redistribution and use in source and binary forms, with or without modification, are
+// permitted provided that the following conditions are met:
+// 
+// 1. Redistributions of source code must retain the above copyright notice, this list of
+//    conditions and the following disclaimer.
+// 
+// 2. Redistributions in binary form must reproduce the above copyright notice, this list
+//    of conditions and the following disclaimer in the documentation and/or other
+//    materials provided with the distribution.
+// 
+// 3. Neither the name of the copyright holder nor the names of its contributors may be
+//    used to endorse or promote products derived from this software without specific
+//    prior written permission.
+// 
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
+// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
+// THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+// STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
+// THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+#pragma once
+
+#include "daemon_messages.h"
+#include "daemon_rpc_version.h"
+#include "rpc_handler.h"
+#include "cryptonote_core/cryptonote_core.h"
+#include "cryptonote_protocol/cryptonote_protocol_handler.h"
+#include "p2p/net_node.h"
+
+namespace
+{
+  typedef nodetool::node_server<cryptonote::t_cryptonote_protocol_handler<cryptonote::core> > t_p2p;
+}  // anonymous namespace
+
+namespace cryptonote
+{
+
+namespace rpc
+{
+
+class DaemonHandler : public RpcHandler
+{
+  public:
+
+    DaemonHandler(cryptonote::core& c, t_p2p& p2p) : m_core(c), m_p2p(p2p) { }
+
+    ~DaemonHandler() { }
+
+    void handle(const GetHeight::Request& req, GetHeight::Response& res);
+
+    void handle(const GetBlocksFast::Request& req, GetBlocksFast::Response& res);
+
+    void handle(const GetHashesFast::Request& req, GetHashesFast::Response& res);
+
+    void handle(const GetTransactions::Request& req, GetTransactions::Response& res);
+
+    void handle(const KeyImagesSpent::Request& req, KeyImagesSpent::Response& res);
+
+    void handle(const GetTxGlobalOutputIndices::Request& req, GetTxGlobalOutputIndices::Response& res);
+
+    void handle(const GetRandomOutputsForAmounts::Request& req, GetRandomOutputsForAmounts::Response& res);
+
+    void handle(const SendRawTx::Request& req, SendRawTx::Response& res);
+
+    void handle(const StartMining::Request& req, StartMining::Response& res);
+
+    void handle(const GetInfo::Request& req, GetInfo::Response& res);
+
+    void handle(const StopMining::Request& req, StopMining::Response& res);
+
+    void handle(const MiningStatus::Request& req, MiningStatus::Response& res);
+
+    void handle(const SaveBC::Request& req, SaveBC::Response& res);
+
+    void handle(const GetBlockHash::Request& req, GetBlockHash::Response& res);
+
+    void handle(const GetBlockTemplate::Request& req, GetBlockTemplate::Response& res);
+
+    void handle(const SubmitBlock::Request& req, SubmitBlock::Response& res);
+
+    void handle(const GetLastBlockHeader::Request& req, GetLastBlockHeader::Response& res);
+
+    void handle(const GetBlockHeaderByHash::Request& req, GetBlockHeaderByHash::Response& res);
+
+    void handle(const GetBlockHeaderByHeight::Request& req, GetBlockHeaderByHeight::Response& res);
+
+    void handle(const GetBlockHeadersByHeight::Request& req, GetBlockHeadersByHeight::Response& res);
+
+    void handle(const GetBlock::Request& req, GetBlock::Response& res);
+
+    void handle(const GetPeerList::Request& req, GetPeerList::Response& res);
+
+    void handle(const SetLogHashRate::Request& req, SetLogHashRate::Response& res);
+
+    void handle(const SetLogLevel::Request& req, SetLogLevel::Response& res);
+
+    void handle(const GetTransactionPool::Request& req, GetTransactionPool::Response& res);
+
+    void handle(const GetConnections::Request& req, GetConnections::Response& res);
+
+    void handle(const GetBlockHeadersRange::Request& req, GetBlockHeadersRange::Response& res);
+
+    void handle(const StopDaemon::Request& req, StopDaemon::Response& res);
+
+    void handle(const StartSaveGraph::Request& req, StartSaveGraph::Response& res);
+
+    void handle(const StopSaveGraph::Request& req, StopSaveGraph::Response& res);
+
+    void handle(const HardForkInfo::Request& req, HardForkInfo::Response& res);
+
+    void handle(const GetBans::Request& req, GetBans::Response& res);
+
+    void handle(const SetBans::Request& req, SetBans::Response& res);
+
+    void handle(const FlushTransactionPool::Request& req, FlushTransactionPool::Response& res);
+
+    void handle(const GetOutputHistogram::Request& req, GetOutputHistogram::Response& res);
+
+    void handle(const GetOutputKeys::Request& req, GetOutputKeys::Response& res);
+
+    void handle(const GetRPCVersion::Request& req, GetRPCVersion::Response& res);
+
+    void handle(const GetPerKBFeeEstimate::Request& req, GetPerKBFeeEstimate::Response& res);
+
+    std::string handle(const std::string& request);
+
+  private:
+
+    bool getBlockHeaderByHash(const crypto::hash& hash_in, cryptonote::rpc::BlockHeaderResponse& response);
+
+    cryptonote::core& m_core;
+    t_p2p& m_p2p;
+};
+
+}  // namespace rpc
+
+}  // namespace cryptonote
diff --git a/src/rpc/daemon_messages.cpp b/src/rpc/daemon_messages.cpp
new file mode 100644
index 000000000..640058df9
--- /dev/null
+++ b/src/rpc/daemon_messages.cpp
@@ -0,0 +1,900 @@
+// Copyright (c) 2016-2017, The Monero Project
+// 
+// All rights reserved.
+// 
+// Redistribution and use in source and binary forms, with or without modification, are
+// permitted provided that the following conditions are met:
+// 
+// 1. Redistributions of source code must retain the above copyright notice, this list of
+//    conditions and the following disclaimer.
+// 
+// 2. Redistributions in binary form must reproduce the above copyright notice, this list
+//    of conditions and the following disclaimer in the documentation and/or other
+//    materials provided with the distribution.
+// 
+// 3. Neither the name of the copyright holder nor the names of its contributors may be
+//    used to endorse or promote products derived from this software without specific
+//    prior written permission.
+// 
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
+// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
+// THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+// STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
+// THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+#include "daemon_messages.h"
+#include "serialization/json_object.h"
+
+namespace cryptonote
+{
+
+namespace rpc
+{
+
+const char* const GetHeight::name = "get_height";
+const char* const GetBlocksFast::name = "get_blocks_fast";
+const char* const GetHashesFast::name = "get_hashes_fast";
+const char* const GetTransactions::name = "get_transactions";
+const char* const KeyImagesSpent::name = "key_images_spent";
+const char* const GetTxGlobalOutputIndices::name = "get_tx_global_output_indices";
+const char* const GetRandomOutputsForAmounts::name = "get_random_outputs_for_amounts";
+const char* const SendRawTx::name = "send_raw_tx";
+const char* const StartMining::name = "start_mining";
+const char* const StopMining::name = "stop_mining";
+const char* const MiningStatus::name = "mining_status";
+const char* const GetInfo::name = "get_info";
+const char* const SaveBC::name = "save_bc";
+const char* const GetBlockHash::name = "get_block_hash";
+const char* const GetLastBlockHeader::name = "get_last_block_header";
+const char* const GetBlockHeaderByHash::name = "get_block_header_by_hash";
+const char* const GetBlockHeaderByHeight::name = "get_block_header_by_height";
+const char* const GetBlockHeadersByHeight::name = "get_block_headers_by_height";
+const char* const GetPeerList::name = "get_peer_list";
+const char* const SetLogLevel::name = "set_log_level";
+const char* const GetTransactionPool::name = "get_transaction_pool";
+const char* const HardForkInfo::name = "hard_fork_info";
+const char* const GetOutputHistogram::name = "get_output_histogram";
+const char* const GetOutputKeys::name = "get_output_keys";
+const char* const GetRPCVersion::name = "get_rpc_version";
+const char* const GetPerKBFeeEstimate::name = "get_dynamic_per_kb_fee_estimate";
+
+
+
+
+rapidjson::Value GetHeight::Request::toJson(rapidjson::Document& doc) const
+{
+  return Message::toJson(doc);
+}
+
+void GetHeight::Request::fromJson(rapidjson::Value& val)
+{
+}
+
+rapidjson::Value GetHeight::Response::toJson(rapidjson::Document& doc) const
+{
+  auto val = Message::toJson(doc);
+
+  auto& al = doc.GetAllocator();
+
+  val.AddMember("height", height, al);
+
+  return val;
+}
+
+void GetHeight::Response::fromJson(rapidjson::Value& val)
+{
+  GET_FROM_JSON_OBJECT(val, height, height);
+}
+
+
+rapidjson::Value GetBlocksFast::Request::toJson(rapidjson::Document& doc) const
+{
+  auto val = Message::toJson(doc);
+
+  auto& al = doc.GetAllocator();
+
+  INSERT_INTO_JSON_OBJECT(val, doc, block_ids, block_ids);
+  val.AddMember("start_height", start_height, al);
+  val.AddMember("prune", prune, al);
+
+  return val;
+}
+
+void GetBlocksFast::Request::fromJson(rapidjson::Value& val)
+{
+  GET_FROM_JSON_OBJECT(val, block_ids, block_ids);
+  GET_FROM_JSON_OBJECT(val, start_height, start_height);
+  GET_FROM_JSON_OBJECT(val, prune, prune);
+}
+
+rapidjson::Value GetBlocksFast::Response::toJson(rapidjson::Document& doc) const
+{
+  auto val = Message::toJson(doc);
+
+  auto& al = doc.GetAllocator();
+
+  INSERT_INTO_JSON_OBJECT(val, doc, blocks, blocks);
+  val.AddMember("start_height", start_height, al);
+  val.AddMember("current_height", current_height, al);
+  INSERT_INTO_JSON_OBJECT(val, doc, output_indices, output_indices);
+
+  return val;
+}
+
+void GetBlocksFast::Response::fromJson(rapidjson::Value& val)
+{
+  GET_FROM_JSON_OBJECT(val, blocks, blocks);
+  GET_FROM_JSON_OBJECT(val, start_height, start_height);
+  GET_FROM_JSON_OBJECT(val, current_height, current_height);
+  GET_FROM_JSON_OBJECT(val, output_indices, output_indices);
+}
+
+
+rapidjson::Value GetHashesFast::Request::toJson(rapidjson::Document& doc) const
+{
+  auto val = Message::toJson(doc);
+
+  auto& al = doc.GetAllocator();
+
+  INSERT_INTO_JSON_OBJECT(val, doc, known_hashes, known_hashes);
+  val.AddMember("start_height", start_height, al);
+
+  return val;
+}
+
+void GetHashesFast::Request::fromJson(rapidjson::Value& val)
+{
+  GET_FROM_JSON_OBJECT(val, known_hashes, known_hashes);
+  GET_FROM_JSON_OBJECT(val, start_height, start_height);
+}
+
+rapidjson::Value GetHashesFast::Response::toJson(rapidjson::Document& doc) const
+{
+  auto val = Message::toJson(doc);
+
+  auto& al = doc.GetAllocator();
+
+  INSERT_INTO_JSON_OBJECT(val, doc, hashes, hashes);
+  val.AddMember("start_height", start_height, al);
+  val.AddMember("current_height", current_height, al);
+
+  return val;
+}
+
+void GetHashesFast::Response::fromJson(rapidjson::Value& val)
+{
+  GET_FROM_JSON_OBJECT(val, hashes, hashes);
+  GET_FROM_JSON_OBJECT(val, start_height, start_height);
+  GET_FROM_JSON_OBJECT(val, current_height, current_height);
+}
+
+
+rapidjson::Value GetTransactions::Request::toJson(rapidjson::Document& doc) const
+{
+  auto val = Message::toJson(doc);
+
+  auto& al = doc.GetAllocator();
+
+  INSERT_INTO_JSON_OBJECT(val, doc, tx_hashes, tx_hashes);
+
+  return val;
+}
+
+void GetTransactions::Request::fromJson(rapidjson::Value& val)
+{
+  GET_FROM_JSON_OBJECT(val, tx_hashes, tx_hashes);
+}
+
+rapidjson::Value GetTransactions::Response::toJson(rapidjson::Document& doc) const
+{
+  rapidjson::Value val(rapidjson::kObjectType);
+
+  auto& al = doc.GetAllocator();
+
+  INSERT_INTO_JSON_OBJECT(val, doc, txs, txs);
+  INSERT_INTO_JSON_OBJECT(val, doc, missed_hashes, missed_hashes);
+
+  return val;
+}
+
+void GetTransactions::Response::fromJson(rapidjson::Value& val)
+{
+  GET_FROM_JSON_OBJECT(val, txs, txs);
+  GET_FROM_JSON_OBJECT(val, missed_hashes, missed_hashes);
+}
+
+
+rapidjson::Value KeyImagesSpent::Request::toJson(rapidjson::Document& doc) const
+{
+  auto val = Message::toJson(doc);
+
+  auto& al = doc.GetAllocator();
+
+  INSERT_INTO_JSON_OBJECT(val, doc, key_images, key_images);
+
+  return val;
+}
+
+void KeyImagesSpent::Request::fromJson(rapidjson::Value& val)
+{
+  GET_FROM_JSON_OBJECT(val, key_images, key_images);
+}
+
+rapidjson::Value KeyImagesSpent::Response::toJson(rapidjson::Document& doc) const
+{
+  auto val = Message::toJson(doc);
+
+  auto& al = doc.GetAllocator();
+
+  INSERT_INTO_JSON_OBJECT(val, doc, spent_status, spent_status);
+
+  return val;
+}
+
+void KeyImagesSpent::Response::fromJson(rapidjson::Value& val)
+{
+  GET_FROM_JSON_OBJECT(val, spent_status, spent_status);
+}
+
+
+rapidjson::Value GetTxGlobalOutputIndices::Request::toJson(rapidjson::Document& doc) const
+{
+  auto val = Message::toJson(doc);
+
+  auto& al = doc.GetAllocator();
+
+  INSERT_INTO_JSON_OBJECT(val, doc, tx_hash, tx_hash);
+
+  return val;
+}
+
+void GetTxGlobalOutputIndices::Request::fromJson(rapidjson::Value& val)
+{
+  GET_FROM_JSON_OBJECT(val, tx_hash, tx_hash);
+}
+
+rapidjson::Value GetTxGlobalOutputIndices::Response::toJson(rapidjson::Document& doc) const
+{
+  auto val = Message::toJson(doc);
+
+  auto& al = doc.GetAllocator();
+
+  INSERT_INTO_JSON_OBJECT(val, doc, output_indices, output_indices);
+
+  return val;
+}
+
+void GetTxGlobalOutputIndices::Response::fromJson(rapidjson::Value& val)
+{
+  GET_FROM_JSON_OBJECT(val, output_indices, output_indices);
+}
+
+
+rapidjson::Value GetRandomOutputsForAmounts::Request::toJson(rapidjson::Document& doc) const
+{
+  auto val = Message::toJson(doc);
+
+  auto& al = doc.GetAllocator();
+
+  INSERT_INTO_JSON_OBJECT(val, doc, amounts, amounts);
+  INSERT_INTO_JSON_OBJECT(val, doc, count, count);
+
+  return val;
+}
+
+void GetRandomOutputsForAmounts::Request::fromJson(rapidjson::Value& val)
+{
+  GET_FROM_JSON_OBJECT(val, amounts, amounts);
+  GET_FROM_JSON_OBJECT(val, count, count);
+}
+
+rapidjson::Value GetRandomOutputsForAmounts::Response::toJson(rapidjson::Document& doc) const
+{
+  auto val = Message::toJson(doc);
+
+  auto& al = doc.GetAllocator();
+
+  INSERT_INTO_JSON_OBJECT(val, doc, amounts_with_outputs, amounts_with_outputs);
+
+  return val;
+}
+
+void GetRandomOutputsForAmounts::Response::fromJson(rapidjson::Value& val)
+{
+  GET_FROM_JSON_OBJECT(val, amounts_with_outputs, amounts_with_outputs);
+}
+
+
+rapidjson::Value SendRawTx::Request::toJson(rapidjson::Document& doc) const
+{
+  auto val = Message::toJson(doc);
+
+  auto& al = doc.GetAllocator();
+
+  INSERT_INTO_JSON_OBJECT(val, doc, tx, tx);
+  INSERT_INTO_JSON_OBJECT(val, doc, relay, relay);
+
+  return val;
+}
+
+void SendRawTx::Request::fromJson(rapidjson::Value& val)
+{
+  GET_FROM_JSON_OBJECT(val, tx, tx);
+  GET_FROM_JSON_OBJECT(val, relay, relay);
+}
+
+rapidjson::Value SendRawTx::Response::toJson(rapidjson::Document& doc) const
+{
+  auto val = Message::toJson(doc);
+
+  auto& al = doc.GetAllocator();
+
+  INSERT_INTO_JSON_OBJECT(val, doc, relayed, relayed);
+
+  return val;
+}
+
+
+void SendRawTx::Response::fromJson(rapidjson::Value& val)
+{
+  GET_FROM_JSON_OBJECT(val, relayed, relayed);
+}
+
+rapidjson::Value StartMining::Request::toJson(rapidjson::Document& doc) const
+{
+  auto val = Message::toJson(doc);
+
+  auto& al = doc.GetAllocator();
+
+  INSERT_INTO_JSON_OBJECT(val, doc, miner_address, miner_address);
+  INSERT_INTO_JSON_OBJECT(val, doc, threads_count, threads_count);
+  INSERT_INTO_JSON_OBJECT(val, doc, do_background_mining, do_background_mining);
+  INSERT_INTO_JSON_OBJECT(val, doc, ignore_battery, ignore_battery);
+
+  return val;
+}
+
+void StartMining::Request::fromJson(rapidjson::Value& val)
+{
+  GET_FROM_JSON_OBJECT(val, miner_address, miner_address);
+  GET_FROM_JSON_OBJECT(val, threads_count, threads_count);
+  GET_FROM_JSON_OBJECT(val, do_background_mining, do_background_mining);
+  GET_FROM_JSON_OBJECT(val, ignore_battery, ignore_battery);
+}
+
+rapidjson::Value StartMining::Response::toJson(rapidjson::Document& doc) const
+{
+  return Message::toJson(doc);
+}
+
+void StartMining::Response::fromJson(rapidjson::Value& val)
+{
+}
+
+
+rapidjson::Value StopMining::Request::toJson(rapidjson::Document& doc) const
+{
+  return Message::toJson(doc);
+}
+
+void StopMining::Request::fromJson(rapidjson::Value& val)
+{
+}
+
+rapidjson::Value StopMining::Response::toJson(rapidjson::Document& doc) const
+{
+  return Message::toJson(doc);
+}
+
+void StopMining::Response::fromJson(rapidjson::Value& val)
+{
+}
+
+
+rapidjson::Value MiningStatus::Request::toJson(rapidjson::Document& doc) const
+{
+  return Message::toJson(doc);
+}
+
+void MiningStatus::Request::fromJson(rapidjson::Value& val)
+{
+}
+
+rapidjson::Value MiningStatus::Response::toJson(rapidjson::Document& doc) const
+{
+  auto val = Message::toJson(doc);
+
+  auto& al = doc.GetAllocator();
+
+  INSERT_INTO_JSON_OBJECT(val, doc, active, active);
+  INSERT_INTO_JSON_OBJECT(val, doc, speed, speed);
+  INSERT_INTO_JSON_OBJECT(val, doc, threads_count, threads_count);
+  INSERT_INTO_JSON_OBJECT(val, doc, address, address);
+  INSERT_INTO_JSON_OBJECT(val, doc, is_background_mining_enabled, is_background_mining_enabled);
+
+  return val;
+}
+
+void MiningStatus::Response::fromJson(rapidjson::Value& val)
+{
+  GET_FROM_JSON_OBJECT(val, active, active);
+  GET_FROM_JSON_OBJECT(val, speed, speed);
+  GET_FROM_JSON_OBJECT(val, threads_count, threads_count);
+  GET_FROM_JSON_OBJECT(val, address, address);
+  GET_FROM_JSON_OBJECT(val, is_background_mining_enabled, is_background_mining_enabled);
+}
+
+
+rapidjson::Value GetInfo::Request::toJson(rapidjson::Document& doc) const
+{
+  return Message::toJson(doc);
+}
+
+void GetInfo::Request::fromJson(rapidjson::Value& val)
+{
+}
+
+rapidjson::Value GetInfo::Response::toJson(rapidjson::Document& doc) const
+{
+  auto val = Message::toJson(doc);
+
+  auto& al = doc.GetAllocator();
+
+  INSERT_INTO_JSON_OBJECT(val, doc, info, info);
+
+  return val;
+}
+
+void GetInfo::Response::fromJson(rapidjson::Value& val)
+{
+  GET_FROM_JSON_OBJECT(val, info, info);
+}
+
+
+rapidjson::Value SaveBC::Request::toJson(rapidjson::Document& doc) const
+{
+  auto val = Message::toJson(doc);
+
+  auto& al = doc.GetAllocator();
+
+  return val;
+}
+
+void SaveBC::Request::fromJson(rapidjson::Value& val)
+{
+}
+
+rapidjson::Value SaveBC::Response::toJson(rapidjson::Document& doc) const
+{
+  auto val = Message::toJson(doc);
+
+  auto& al = doc.GetAllocator();
+
+  return val;
+}
+
+void SaveBC::Response::fromJson(rapidjson::Value& val)
+{
+}
+
+
+rapidjson::Value GetBlockHash::Request::toJson(rapidjson::Document& doc) const
+{
+  auto val = Message::toJson(doc);
+
+  auto& al = doc.GetAllocator();
+
+  INSERT_INTO_JSON_OBJECT(val, doc, height, height);
+
+  return val;
+}
+
+void GetBlockHash::Request::fromJson(rapidjson::Value& val)
+{
+  GET_FROM_JSON_OBJECT(val, height, height);
+}
+
+rapidjson::Value GetBlockHash::Response::toJson(rapidjson::Document& doc) const
+{
+  auto val = Message::toJson(doc);
+
+  auto& al = doc.GetAllocator();
+
+  INSERT_INTO_JSON_OBJECT(val, doc, hash, hash);
+
+  return val;
+}
+
+void GetBlockHash::Response::fromJson(rapidjson::Value& val)
+{
+  GET_FROM_JSON_OBJECT(val, hash, hash);
+}
+
+
+rapidjson::Value GetLastBlockHeader::Request::toJson(rapidjson::Document& doc) const
+{
+  auto val = Message::toJson(doc);
+
+  auto& al = doc.GetAllocator();
+
+  return val;
+}
+
+void GetLastBlockHeader::Request::fromJson(rapidjson::Value& val)
+{
+}
+
+rapidjson::Value GetLastBlockHeader::Response::toJson(rapidjson::Document& doc) const
+{
+  auto val = Message::toJson(doc);
+
+  auto& al = doc.GetAllocator();
+
+  INSERT_INTO_JSON_OBJECT(val, doc, header, header);
+
+  return val;
+}
+
+void GetLastBlockHeader::Response::fromJson(rapidjson::Value& val)
+{
+  GET_FROM_JSON_OBJECT(val, header, header);
+}
+
+
+rapidjson::Value GetBlockHeaderByHash::Request::toJson(rapidjson::Document& doc) const
+{
+  auto val = Message::toJson(doc);
+
+  auto& al = doc.GetAllocator();
+
+  INSERT_INTO_JSON_OBJECT(val, doc, hash, hash);
+
+  return val;
+}
+
+void GetBlockHeaderByHash::Request::fromJson(rapidjson::Value& val)
+{
+  GET_FROM_JSON_OBJECT(val, hash, hash);
+}
+
+rapidjson::Value GetBlockHeaderByHash::Response::toJson(rapidjson::Document& doc) const
+{
+  auto val = Message::toJson(doc);
+
+  auto& al = doc.GetAllocator();
+
+  INSERT_INTO_JSON_OBJECT(val, doc, header, header);
+
+  return val;
+}
+
+void GetBlockHeaderByHash::Response::fromJson(rapidjson::Value& val)
+{
+  GET_FROM_JSON_OBJECT(val, header, header);
+}
+
+
+rapidjson::Value GetBlockHeaderByHeight::Request::toJson(rapidjson::Document& doc) const
+{
+  auto val = Message::toJson(doc);
+
+  auto& al = doc.GetAllocator();
+
+  INSERT_INTO_JSON_OBJECT(val, doc, height, height);
+
+  return val;
+}
+
+void GetBlockHeaderByHeight::Request::fromJson(rapidjson::Value& val)
+{
+  GET_FROM_JSON_OBJECT(val, height, height);
+}
+
+rapidjson::Value GetBlockHeaderByHeight::Response::toJson(rapidjson::Document& doc) const
+{
+  auto val = Message::toJson(doc);
+
+  auto& al = doc.GetAllocator();
+
+  INSERT_INTO_JSON_OBJECT(val, doc, header, header);
+
+  return val;
+}
+
+void GetBlockHeaderByHeight::Response::fromJson(rapidjson::Value& val)
+{
+  GET_FROM_JSON_OBJECT(val, header, header);
+}
+
+
+rapidjson::Value GetBlockHeadersByHeight::Request::toJson(rapidjson::Document& doc) const
+{
+  auto val = Message::toJson(doc);
+
+  auto& al = doc.GetAllocator();
+
+  INSERT_INTO_JSON_OBJECT(val, doc, heights, heights);
+
+  return val;
+}
+
+void GetBlockHeadersByHeight::Request::fromJson(rapidjson::Value& val)
+{
+  GET_FROM_JSON_OBJECT(val, heights, heights);
+}
+
+rapidjson::Value GetBlockHeadersByHeight::Response::toJson(rapidjson::Document& doc) const
+{
+  auto val = Message::toJson(doc);
+
+  auto& al = doc.GetAllocator();
+
+  INSERT_INTO_JSON_OBJECT(val, doc, headers, headers);
+
+  return val;
+}
+
+void GetBlockHeadersByHeight::Response::fromJson(rapidjson::Value& val)
+{
+  GET_FROM_JSON_OBJECT(val, headers, headers);
+}
+
+
+rapidjson::Value GetPeerList::Request::toJson(rapidjson::Document& doc) const
+{
+  auto val = Message::toJson(doc);
+
+  auto& al = doc.GetAllocator();
+
+  return val;
+}
+
+void GetPeerList::Request::fromJson(rapidjson::Value& val)
+{
+}
+
+rapidjson::Value GetPeerList::Response::toJson(rapidjson::Document& doc) const
+{
+  auto val = Message::toJson(doc);
+
+  auto& al = doc.GetAllocator();
+
+  INSERT_INTO_JSON_OBJECT(val, doc, white_list, white_list);
+  INSERT_INTO_JSON_OBJECT(val, doc, gray_list, gray_list);
+
+  return val;
+}
+
+void GetPeerList::Response::fromJson(rapidjson::Value& val)
+{
+  GET_FROM_JSON_OBJECT(val, white_list, white_list);
+  GET_FROM_JSON_OBJECT(val, gray_list, gray_list);
+}
+
+
+rapidjson::Value SetLogLevel::Request::toJson(rapidjson::Document& doc) const
+{
+  auto val = Message::toJson(doc);
+
+  auto& al = doc.GetAllocator();
+
+  val.AddMember("level", level, al);
+
+  return val;
+}
+
+void SetLogLevel::Request::fromJson(rapidjson::Value& val)
+{
+  GET_FROM_JSON_OBJECT(val, level, level);
+}
+
+rapidjson::Value SetLogLevel::Response::toJson(rapidjson::Document& doc) const
+{
+  return Message::toJson(doc);
+}
+
+void SetLogLevel::Response::fromJson(rapidjson::Value& val)
+{
+}
+
+
+rapidjson::Value GetTransactionPool::Request::toJson(rapidjson::Document& doc) const
+{
+  return Message::toJson(doc);
+}
+
+void GetTransactionPool::Request::fromJson(rapidjson::Value& val)
+{
+}
+
+rapidjson::Value GetTransactionPool::Response::toJson(rapidjson::Document& doc) const
+{
+  auto val = Message::toJson(doc);
+
+  auto& al = doc.GetAllocator();
+
+  INSERT_INTO_JSON_OBJECT(val, doc, transactions, transactions);
+  INSERT_INTO_JSON_OBJECT(val, doc, key_images, key_images);
+
+  return val;
+}
+
+void GetTransactionPool::Response::fromJson(rapidjson::Value& val)
+{
+  GET_FROM_JSON_OBJECT(val, transactions, transactions);
+  GET_FROM_JSON_OBJECT(val, key_images, key_images);
+}
+
+
+rapidjson::Value HardForkInfo::Request::toJson(rapidjson::Document& doc) const
+{
+  auto val = Message::toJson(doc);
+
+  auto& al = doc.GetAllocator();
+
+  INSERT_INTO_JSON_OBJECT(val, doc, version, version);
+
+  return val;
+}
+
+void HardForkInfo::Request::fromJson(rapidjson::Value& val)
+{
+  GET_FROM_JSON_OBJECT(val, version, version);
+}
+
+rapidjson::Value HardForkInfo::Response::toJson(rapidjson::Document& doc) const
+{
+  auto val = Message::toJson(doc);
+
+  auto& al = doc.GetAllocator();
+
+  INSERT_INTO_JSON_OBJECT(val, doc, info, info);
+
+  return val;
+}
+
+void HardForkInfo::Response::fromJson(rapidjson::Value& val)
+{
+  GET_FROM_JSON_OBJECT(val, info, info);
+}
+
+
+rapidjson::Value GetOutputHistogram::Request::toJson(rapidjson::Document& doc) const
+{
+  auto val = Message::toJson(doc);
+
+  auto& al = doc.GetAllocator();
+
+  INSERT_INTO_JSON_OBJECT(val, doc, amounts, amounts);
+  INSERT_INTO_JSON_OBJECT(val, doc, min_count, min_count);
+  INSERT_INTO_JSON_OBJECT(val, doc, max_count, max_count);
+  INSERT_INTO_JSON_OBJECT(val, doc, unlocked, unlocked);
+  INSERT_INTO_JSON_OBJECT(val, doc, recent_cutoff, recent_cutoff);
+
+  return val;
+}
+
+void GetOutputHistogram::Request::fromJson(rapidjson::Value& val)
+{
+  GET_FROM_JSON_OBJECT(val, amounts, amounts);
+  GET_FROM_JSON_OBJECT(val, min_count, min_count);
+  GET_FROM_JSON_OBJECT(val, max_count, max_count);
+  GET_FROM_JSON_OBJECT(val, unlocked, unlocked);
+  GET_FROM_JSON_OBJECT(val, recent_cutoff, recent_cutoff);
+}
+
+rapidjson::Value GetOutputHistogram::Response::toJson(rapidjson::Document& doc) const
+{
+  auto val = Message::toJson(doc);
+
+  auto& al = doc.GetAllocator();
+
+  INSERT_INTO_JSON_OBJECT(val, doc, histogram, histogram);
+
+  return val;
+}
+
+void GetOutputHistogram::Response::fromJson(rapidjson::Value& val)
+{
+  GET_FROM_JSON_OBJECT(val, histogram, histogram);
+}
+
+
+rapidjson::Value GetOutputKeys::Request::toJson(rapidjson::Document& doc) const
+{
+  auto val = Message::toJson(doc);
+
+  auto& al = doc.GetAllocator();
+
+  INSERT_INTO_JSON_OBJECT(val, doc, outputs, outputs);
+
+  return val;
+}
+
+void GetOutputKeys::Request::fromJson(rapidjson::Value& val)
+{
+  GET_FROM_JSON_OBJECT(val, outputs, outputs);
+}
+
+rapidjson::Value GetOutputKeys::Response::toJson(rapidjson::Document& doc) const
+{
+  auto val = Message::toJson(doc);
+
+  auto& al = doc.GetAllocator();
+
+  INSERT_INTO_JSON_OBJECT(val, doc, keys, keys);
+
+  return val;
+}
+
+void GetOutputKeys::Response::fromJson(rapidjson::Value& val)
+{
+  GET_FROM_JSON_OBJECT(val, keys, keys);
+}
+
+
+rapidjson::Value GetRPCVersion::Request::toJson(rapidjson::Document& doc) const
+{
+  return Message::toJson(doc);
+}
+
+void GetRPCVersion::Request::fromJson(rapidjson::Value& val)
+{
+}
+
+rapidjson::Value GetRPCVersion::Response::toJson(rapidjson::Document& doc) const
+{
+  auto val = Message::toJson(doc);
+
+  auto& al = doc.GetAllocator();
+
+  INSERT_INTO_JSON_OBJECT(val, doc, version, version);
+
+  return val;
+}
+
+void GetRPCVersion::Response::fromJson(rapidjson::Value& val)
+{
+  GET_FROM_JSON_OBJECT(val, version, version);
+}
+
+rapidjson::Value GetPerKBFeeEstimate::Request::toJson(rapidjson::Document& doc) const
+{
+  auto val = Message::toJson(doc);
+
+  auto& al = doc.GetAllocator();
+
+  INSERT_INTO_JSON_OBJECT(val, doc, num_grace_blocks, num_grace_blocks);
+
+  return val;
+}
+
+void GetPerKBFeeEstimate::Request::fromJson(rapidjson::Value& val)
+{
+  GET_FROM_JSON_OBJECT(val, num_grace_blocks, num_grace_blocks);
+}
+
+rapidjson::Value GetPerKBFeeEstimate::Response::toJson(rapidjson::Document& doc) const
+{
+  auto val = Message::toJson(doc);
+
+  auto& al = doc.GetAllocator();
+
+  INSERT_INTO_JSON_OBJECT(val, doc, estimated_fee_per_kb, estimated_fee_per_kb);
+
+  return val;
+}
+
+void GetPerKBFeeEstimate::Response::fromJson(rapidjson::Value& val)
+{
+  GET_FROM_JSON_OBJECT(val, estimated_fee_per_kb, estimated_fee_per_kb);
+}
+
+
+}  // namespace rpc
+
+}  // namespace cryptonote
diff --git a/src/rpc/daemon_messages.h b/src/rpc/daemon_messages.h
new file mode 100644
index 000000000..685f66843
--- /dev/null
+++ b/src/rpc/daemon_messages.h
@@ -0,0 +1,421 @@
+// Copyright (c) 2016-2017, The Monero Project
+// 
+// All rights reserved.
+// 
+// Redistribution and use in source and binary forms, with or without modification, are
+// permitted provided that the following conditions are met:
+// 
+// 1. Redistributions of source code must retain the above copyright notice, this list of
+//    conditions and the following disclaimer.
+// 
+// 2. Redistributions in binary form must reproduce the above copyright notice, this list
+//    of conditions and the following disclaimer in the documentation and/or other
+//    materials provided with the distribution.
+// 
+// 3. Neither the name of the copyright holder nor the names of its contributors may be
+//    used to endorse or promote products derived from this software without specific
+//    prior written permission.
+// 
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
+// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
+// THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+// STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
+// THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+#pragma once
+
+#include "message.h"
+#include "cryptonote_protocol/cryptonote_protocol_defs.h"
+#include "rpc/message_data_structs.h"
+#include "rpc/daemon_rpc_version.h"
+#include "cryptonote_basic/cryptonote_basic.h"
+
+#define BEGIN_RPC_MESSAGE_CLASS(classname) \
+class classname \
+{ \
+  public: \
+    static const char* const name;
+
+#define BEGIN_RPC_MESSAGE_REQUEST \
+    class Request : public Message \
+    { \
+      public: \
+        Request() { } \
+        ~Request() { } \
+        rapidjson::Value toJson(rapidjson::Document& doc) const; \
+        void fromJson(rapidjson::Value& val);
+
+#define BEGIN_RPC_MESSAGE_RESPONSE \
+    class Response : public Message \
+    { \
+      public: \
+        Response() { } \
+        ~Response() { } \
+        rapidjson::Value toJson(rapidjson::Document& doc) const; \
+        void fromJson(rapidjson::Value& val);
+
+#define END_RPC_MESSAGE_REQUEST };
+#define END_RPC_MESSAGE_RESPONSE };
+#define END_RPC_MESSAGE_CLASS };
+
+#define COMMA() ,
+
+// NOTE: when using a type with multiple template parameters,
+// replace any comma in the template specifier with the macro
+// above, or the preprocessor will eat the comma in a bad way.
+#define RPC_MESSAGE_MEMBER(type, name) type name;
+
+
+namespace cryptonote
+{
+
+namespace rpc
+{
+
+BEGIN_RPC_MESSAGE_CLASS(GetHeight);
+  BEGIN_RPC_MESSAGE_REQUEST;
+  END_RPC_MESSAGE_REQUEST;
+  BEGIN_RPC_MESSAGE_RESPONSE;
+    RPC_MESSAGE_MEMBER(uint64_t, height);
+  END_RPC_MESSAGE_RESPONSE;
+END_RPC_MESSAGE_CLASS;
+
+
+BEGIN_RPC_MESSAGE_CLASS(GetBlocksFast);
+  BEGIN_RPC_MESSAGE_REQUEST;
+    RPC_MESSAGE_MEMBER(std::list<crypto::hash>, block_ids);
+    RPC_MESSAGE_MEMBER(uint64_t, start_height);
+    RPC_MESSAGE_MEMBER(bool, prune);
+  END_RPC_MESSAGE_REQUEST;
+  BEGIN_RPC_MESSAGE_RESPONSE;
+    RPC_MESSAGE_MEMBER(std::vector<cryptonote::rpc::block_with_transactions>, blocks);
+    RPC_MESSAGE_MEMBER(uint64_t, start_height);
+    RPC_MESSAGE_MEMBER(uint64_t, current_height);
+    RPC_MESSAGE_MEMBER(std::vector<cryptonote::rpc::block_output_indices>, output_indices);
+  END_RPC_MESSAGE_RESPONSE;
+END_RPC_MESSAGE_CLASS;
+
+
+BEGIN_RPC_MESSAGE_CLASS(GetHashesFast);
+  BEGIN_RPC_MESSAGE_REQUEST;
+    RPC_MESSAGE_MEMBER(std::list<crypto::hash>, known_hashes);
+    RPC_MESSAGE_MEMBER(uint64_t, start_height);
+  END_RPC_MESSAGE_REQUEST;
+  BEGIN_RPC_MESSAGE_RESPONSE;
+    RPC_MESSAGE_MEMBER(std::list<crypto::hash>, hashes);
+    RPC_MESSAGE_MEMBER(uint64_t, start_height);
+    RPC_MESSAGE_MEMBER(uint64_t, current_height);
+  END_RPC_MESSAGE_RESPONSE;
+END_RPC_MESSAGE_CLASS;
+
+
+BEGIN_RPC_MESSAGE_CLASS(GetTransactions);
+  BEGIN_RPC_MESSAGE_REQUEST;
+    RPC_MESSAGE_MEMBER(std::vector<crypto::hash>, tx_hashes);
+  END_RPC_MESSAGE_REQUEST;
+  BEGIN_RPC_MESSAGE_RESPONSE;
+    RPC_MESSAGE_MEMBER(std::unordered_map<crypto::hash COMMA() cryptonote::rpc::transaction_info>, txs);
+    RPC_MESSAGE_MEMBER(std::vector<crypto::hash>, missed_hashes);
+  END_RPC_MESSAGE_RESPONSE;
+END_RPC_MESSAGE_CLASS;
+
+
+BEGIN_RPC_MESSAGE_CLASS(KeyImagesSpent);
+  enum STATUS {
+    UNSPENT = 0,
+    SPENT_IN_BLOCKCHAIN = 1,
+    SPENT_IN_POOL = 2,
+  };
+  BEGIN_RPC_MESSAGE_REQUEST;
+    RPC_MESSAGE_MEMBER(std::vector<crypto::key_image>, key_images);
+  END_RPC_MESSAGE_REQUEST;
+  BEGIN_RPC_MESSAGE_RESPONSE;
+    RPC_MESSAGE_MEMBER(std::vector<uint64_t>, spent_status);
+  END_RPC_MESSAGE_RESPONSE;
+END_RPC_MESSAGE_CLASS;
+
+
+BEGIN_RPC_MESSAGE_CLASS(GetTxGlobalOutputIndices);
+  BEGIN_RPC_MESSAGE_REQUEST;
+    RPC_MESSAGE_MEMBER(crypto::hash, tx_hash);
+  END_RPC_MESSAGE_REQUEST;
+  BEGIN_RPC_MESSAGE_RESPONSE;
+    RPC_MESSAGE_MEMBER(std::vector<uint64_t>, output_indices);
+  END_RPC_MESSAGE_RESPONSE;
+END_RPC_MESSAGE_CLASS;
+
+
+BEGIN_RPC_MESSAGE_CLASS(GetRandomOutputsForAmounts);
+  BEGIN_RPC_MESSAGE_REQUEST;
+    RPC_MESSAGE_MEMBER(std::vector<uint64_t>, amounts);
+    RPC_MESSAGE_MEMBER(uint64_t, count);
+  END_RPC_MESSAGE_REQUEST;
+  BEGIN_RPC_MESSAGE_RESPONSE;
+    RPC_MESSAGE_MEMBER(std::vector<amount_with_random_outputs>, amounts_with_outputs);
+  END_RPC_MESSAGE_RESPONSE;
+END_RPC_MESSAGE_CLASS;
+
+BEGIN_RPC_MESSAGE_CLASS(SendRawTx);
+  BEGIN_RPC_MESSAGE_REQUEST;
+    RPC_MESSAGE_MEMBER(cryptonote::transaction, tx);
+    RPC_MESSAGE_MEMBER(bool, relay);
+  END_RPC_MESSAGE_REQUEST;
+  BEGIN_RPC_MESSAGE_RESPONSE;
+    RPC_MESSAGE_MEMBER(bool, relayed);
+  END_RPC_MESSAGE_RESPONSE;
+END_RPC_MESSAGE_CLASS;
+
+BEGIN_RPC_MESSAGE_CLASS(StartMining);
+  BEGIN_RPC_MESSAGE_REQUEST;
+    RPC_MESSAGE_MEMBER(std::string, miner_address);
+    RPC_MESSAGE_MEMBER(uint64_t, threads_count);
+    RPC_MESSAGE_MEMBER(bool, do_background_mining);
+    RPC_MESSAGE_MEMBER(bool, ignore_battery);
+  END_RPC_MESSAGE_REQUEST;
+  BEGIN_RPC_MESSAGE_RESPONSE;
+  END_RPC_MESSAGE_RESPONSE;
+END_RPC_MESSAGE_CLASS;
+
+BEGIN_RPC_MESSAGE_CLASS(GetInfo);
+  BEGIN_RPC_MESSAGE_REQUEST;
+  END_RPC_MESSAGE_REQUEST;
+  BEGIN_RPC_MESSAGE_RESPONSE;
+    RPC_MESSAGE_MEMBER(DaemonInfo, info);
+  END_RPC_MESSAGE_RESPONSE;
+END_RPC_MESSAGE_CLASS;
+
+BEGIN_RPC_MESSAGE_CLASS(StopMining);
+    BEGIN_RPC_MESSAGE_REQUEST;
+    END_RPC_MESSAGE_REQUEST;
+  BEGIN_RPC_MESSAGE_RESPONSE;
+  END_RPC_MESSAGE_RESPONSE;
+END_RPC_MESSAGE_CLASS;
+
+BEGIN_RPC_MESSAGE_CLASS(MiningStatus);
+  BEGIN_RPC_MESSAGE_REQUEST;
+  END_RPC_MESSAGE_REQUEST;
+  BEGIN_RPC_MESSAGE_RESPONSE;
+    RPC_MESSAGE_MEMBER(bool, active);
+    RPC_MESSAGE_MEMBER(uint64_t, speed);
+    RPC_MESSAGE_MEMBER(uint64_t, threads_count);
+    RPC_MESSAGE_MEMBER(std::string, address);
+    RPC_MESSAGE_MEMBER(bool, is_background_mining_enabled);
+  END_RPC_MESSAGE_RESPONSE;
+END_RPC_MESSAGE_CLASS;
+
+BEGIN_RPC_MESSAGE_CLASS(SaveBC);
+  BEGIN_RPC_MESSAGE_REQUEST;
+  END_RPC_MESSAGE_REQUEST;
+  BEGIN_RPC_MESSAGE_RESPONSE;
+  END_RPC_MESSAGE_RESPONSE;
+END_RPC_MESSAGE_CLASS;
+
+BEGIN_RPC_MESSAGE_CLASS(GetBlockHash);
+  BEGIN_RPC_MESSAGE_REQUEST;
+    RPC_MESSAGE_MEMBER(uint64_t, height);
+  END_RPC_MESSAGE_REQUEST;
+  BEGIN_RPC_MESSAGE_RESPONSE;
+    RPC_MESSAGE_MEMBER(crypto::hash, hash);
+  END_RPC_MESSAGE_RESPONSE;
+END_RPC_MESSAGE_CLASS;
+
+BEGIN_RPC_MESSAGE_CLASS(GetBlockTemplate);
+  BEGIN_RPC_MESSAGE_REQUEST;
+  END_RPC_MESSAGE_REQUEST;
+  BEGIN_RPC_MESSAGE_RESPONSE;
+  END_RPC_MESSAGE_RESPONSE;
+END_RPC_MESSAGE_CLASS;
+
+BEGIN_RPC_MESSAGE_CLASS(SubmitBlock);
+  BEGIN_RPC_MESSAGE_REQUEST;
+  END_RPC_MESSAGE_REQUEST;
+  BEGIN_RPC_MESSAGE_RESPONSE;
+  END_RPC_MESSAGE_RESPONSE;
+END_RPC_MESSAGE_CLASS;
+
+BEGIN_RPC_MESSAGE_CLASS(GetLastBlockHeader);
+  BEGIN_RPC_MESSAGE_REQUEST;
+  END_RPC_MESSAGE_REQUEST;
+  BEGIN_RPC_MESSAGE_RESPONSE;
+    RPC_MESSAGE_MEMBER(cryptonote::rpc::BlockHeaderResponse, header);
+  END_RPC_MESSAGE_RESPONSE;
+END_RPC_MESSAGE_CLASS;
+
+BEGIN_RPC_MESSAGE_CLASS(GetBlockHeaderByHash);
+  BEGIN_RPC_MESSAGE_REQUEST;
+    RPC_MESSAGE_MEMBER(crypto::hash, hash);
+  END_RPC_MESSAGE_REQUEST;
+  BEGIN_RPC_MESSAGE_RESPONSE;
+    RPC_MESSAGE_MEMBER(cryptonote::rpc::BlockHeaderResponse, header);
+  END_RPC_MESSAGE_RESPONSE;
+END_RPC_MESSAGE_CLASS;
+
+BEGIN_RPC_MESSAGE_CLASS(GetBlockHeaderByHeight);
+  BEGIN_RPC_MESSAGE_REQUEST;
+    RPC_MESSAGE_MEMBER(uint64_t, height);
+  END_RPC_MESSAGE_REQUEST;
+  BEGIN_RPC_MESSAGE_RESPONSE;
+    RPC_MESSAGE_MEMBER(cryptonote::rpc::BlockHeaderResponse, header);
+  END_RPC_MESSAGE_RESPONSE;
+END_RPC_MESSAGE_CLASS;
+
+BEGIN_RPC_MESSAGE_CLASS(GetBlockHeadersByHeight);
+  BEGIN_RPC_MESSAGE_REQUEST;
+    RPC_MESSAGE_MEMBER(std::vector<uint64_t>, heights);
+  END_RPC_MESSAGE_REQUEST;
+  BEGIN_RPC_MESSAGE_RESPONSE;
+    RPC_MESSAGE_MEMBER(std::vector<cryptonote::rpc::BlockHeaderResponse>, headers);
+  END_RPC_MESSAGE_RESPONSE;
+END_RPC_MESSAGE_CLASS;
+
+BEGIN_RPC_MESSAGE_CLASS(GetBlock);
+  BEGIN_RPC_MESSAGE_REQUEST;
+  END_RPC_MESSAGE_REQUEST;
+  BEGIN_RPC_MESSAGE_RESPONSE;
+  END_RPC_MESSAGE_RESPONSE;
+END_RPC_MESSAGE_CLASS;
+
+BEGIN_RPC_MESSAGE_CLASS(GetPeerList);
+  BEGIN_RPC_MESSAGE_REQUEST;
+  END_RPC_MESSAGE_REQUEST;
+  BEGIN_RPC_MESSAGE_RESPONSE;
+    RPC_MESSAGE_MEMBER(std::vector<peer>, white_list);
+    RPC_MESSAGE_MEMBER(std::vector<peer>, gray_list);
+  END_RPC_MESSAGE_RESPONSE;
+END_RPC_MESSAGE_CLASS;
+
+BEGIN_RPC_MESSAGE_CLASS(SetLogHashRate);
+  BEGIN_RPC_MESSAGE_REQUEST;
+  END_RPC_MESSAGE_REQUEST;
+  BEGIN_RPC_MESSAGE_RESPONSE;
+  END_RPC_MESSAGE_RESPONSE;
+END_RPC_MESSAGE_CLASS;
+
+BEGIN_RPC_MESSAGE_CLASS(SetLogLevel);
+  BEGIN_RPC_MESSAGE_REQUEST;
+    RPC_MESSAGE_MEMBER(int8_t, level);
+  END_RPC_MESSAGE_REQUEST;
+  BEGIN_RPC_MESSAGE_RESPONSE;
+  END_RPC_MESSAGE_RESPONSE;
+END_RPC_MESSAGE_CLASS;
+
+BEGIN_RPC_MESSAGE_CLASS(GetTransactionPool);
+    BEGIN_RPC_MESSAGE_REQUEST;
+    END_RPC_MESSAGE_REQUEST;
+  BEGIN_RPC_MESSAGE_RESPONSE;
+    RPC_MESSAGE_MEMBER(std::vector<cryptonote::rpc::tx_in_pool>, transactions);
+    RPC_MESSAGE_MEMBER(key_images_with_tx_hashes, key_images);
+  END_RPC_MESSAGE_RESPONSE;
+END_RPC_MESSAGE_CLASS;
+
+BEGIN_RPC_MESSAGE_CLASS(GetConnections);
+  BEGIN_RPC_MESSAGE_REQUEST;
+  END_RPC_MESSAGE_REQUEST;
+  BEGIN_RPC_MESSAGE_RESPONSE;
+  END_RPC_MESSAGE_RESPONSE;
+END_RPC_MESSAGE_CLASS;
+
+BEGIN_RPC_MESSAGE_CLASS(GetBlockHeadersRange);
+  BEGIN_RPC_MESSAGE_REQUEST;
+  END_RPC_MESSAGE_REQUEST;
+  BEGIN_RPC_MESSAGE_RESPONSE;
+  END_RPC_MESSAGE_RESPONSE;
+END_RPC_MESSAGE_CLASS;
+
+BEGIN_RPC_MESSAGE_CLASS(StopDaemon);
+  BEGIN_RPC_MESSAGE_REQUEST;
+  END_RPC_MESSAGE_REQUEST;
+  BEGIN_RPC_MESSAGE_RESPONSE;
+  END_RPC_MESSAGE_RESPONSE;
+END_RPC_MESSAGE_CLASS;
+
+BEGIN_RPC_MESSAGE_CLASS(StartSaveGraph);
+  BEGIN_RPC_MESSAGE_REQUEST;
+  END_RPC_MESSAGE_REQUEST;
+  BEGIN_RPC_MESSAGE_RESPONSE;
+  END_RPC_MESSAGE_RESPONSE;
+END_RPC_MESSAGE_CLASS;
+
+BEGIN_RPC_MESSAGE_CLASS(StopSaveGraph);
+  BEGIN_RPC_MESSAGE_REQUEST;
+  END_RPC_MESSAGE_REQUEST;
+  BEGIN_RPC_MESSAGE_RESPONSE;
+  END_RPC_MESSAGE_RESPONSE;
+END_RPC_MESSAGE_CLASS;
+
+BEGIN_RPC_MESSAGE_CLASS(HardForkInfo);
+  BEGIN_RPC_MESSAGE_REQUEST;
+    RPC_MESSAGE_MEMBER(uint8_t, version);
+  END_RPC_MESSAGE_REQUEST;
+  BEGIN_RPC_MESSAGE_RESPONSE;
+    RPC_MESSAGE_MEMBER(hard_fork_info, info);
+  END_RPC_MESSAGE_RESPONSE;
+END_RPC_MESSAGE_CLASS;
+
+BEGIN_RPC_MESSAGE_CLASS(GetBans);
+  BEGIN_RPC_MESSAGE_REQUEST;
+  END_RPC_MESSAGE_REQUEST;
+  BEGIN_RPC_MESSAGE_RESPONSE;
+  END_RPC_MESSAGE_RESPONSE;
+END_RPC_MESSAGE_CLASS;
+
+BEGIN_RPC_MESSAGE_CLASS(SetBans);
+  BEGIN_RPC_MESSAGE_REQUEST;
+  END_RPC_MESSAGE_REQUEST;
+  BEGIN_RPC_MESSAGE_RESPONSE;
+  END_RPC_MESSAGE_RESPONSE;
+END_RPC_MESSAGE_CLASS;
+
+BEGIN_RPC_MESSAGE_CLASS(FlushTransactionPool);
+  BEGIN_RPC_MESSAGE_REQUEST;
+  END_RPC_MESSAGE_REQUEST;
+  BEGIN_RPC_MESSAGE_RESPONSE;
+  END_RPC_MESSAGE_RESPONSE;
+END_RPC_MESSAGE_CLASS;
+
+BEGIN_RPC_MESSAGE_CLASS(GetOutputHistogram);
+  BEGIN_RPC_MESSAGE_REQUEST;
+    RPC_MESSAGE_MEMBER(std::vector<uint64_t>, amounts);
+    RPC_MESSAGE_MEMBER(uint64_t, min_count);
+    RPC_MESSAGE_MEMBER(uint64_t, max_count);
+    RPC_MESSAGE_MEMBER(bool, unlocked);
+    RPC_MESSAGE_MEMBER(uint64_t, recent_cutoff);
+  END_RPC_MESSAGE_REQUEST;
+  BEGIN_RPC_MESSAGE_RESPONSE;
+    RPC_MESSAGE_MEMBER(std::vector<output_amount_count>, histogram);
+  END_RPC_MESSAGE_RESPONSE;
+END_RPC_MESSAGE_CLASS;
+
+BEGIN_RPC_MESSAGE_CLASS(GetOutputKeys);
+  BEGIN_RPC_MESSAGE_REQUEST;
+    RPC_MESSAGE_MEMBER(std::vector<output_amount_and_index>, outputs);
+  END_RPC_MESSAGE_REQUEST;
+  BEGIN_RPC_MESSAGE_RESPONSE;
+    RPC_MESSAGE_MEMBER(std::vector<output_key_mask_unlocked>, keys);
+  END_RPC_MESSAGE_RESPONSE;
+END_RPC_MESSAGE_CLASS;
+
+BEGIN_RPC_MESSAGE_CLASS(GetRPCVersion);
+  BEGIN_RPC_MESSAGE_REQUEST;
+  END_RPC_MESSAGE_REQUEST;
+  BEGIN_RPC_MESSAGE_RESPONSE;
+    RPC_MESSAGE_MEMBER(uint32_t, version);
+  END_RPC_MESSAGE_RESPONSE;
+END_RPC_MESSAGE_CLASS;
+
+BEGIN_RPC_MESSAGE_CLASS(GetPerKBFeeEstimate);
+  BEGIN_RPC_MESSAGE_REQUEST;
+    RPC_MESSAGE_MEMBER(uint64_t, num_grace_blocks);
+  END_RPC_MESSAGE_REQUEST;
+  BEGIN_RPC_MESSAGE_RESPONSE;
+    RPC_MESSAGE_MEMBER(uint64_t, estimated_fee_per_kb);
+  END_RPC_MESSAGE_RESPONSE;
+END_RPC_MESSAGE_CLASS;
+
+}  // namespace rpc
+
+}  // namespace cryptonote
diff --git a/src/rpc/daemon_rpc_version.h b/src/rpc/daemon_rpc_version.h
new file mode 100644
index 000000000..bb735fe7c
--- /dev/null
+++ b/src/rpc/daemon_rpc_version.h
@@ -0,0 +1,44 @@
+// Copyright (c) 2016-2017, The Monero Project
+// 
+// All rights reserved.
+// 
+// Redistribution and use in source and binary forms, with or without modification, are
+// permitted provided that the following conditions are met:
+// 
+// 1. Redistributions of source code must retain the above copyright notice, this list of
+//    conditions and the following disclaimer.
+// 
+// 2. Redistributions in binary form must reproduce the above copyright notice, this list
+//    of conditions and the following disclaimer in the documentation and/or other
+//    materials provided with the distribution.
+// 
+// 3. Neither the name of the copyright holder nor the names of its contributors may be
+//    used to endorse or promote products derived from this software without specific
+//    prior written permission.
+// 
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
+// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
+// THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+// STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
+// THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+#pragma once
+
+namespace cryptonote
+{
+
+namespace rpc
+{
+
+static const uint32_t DAEMON_RPC_VERSION_ZMQ_MINOR = 0;
+static const uint32_t DAEMON_RPC_VERSION_ZMQ_MAJOR = 1;
+
+static const uint32_t DAEMON_RPC_VERSION_ZMQ = DAEMON_RPC_VERSION_ZMQ_MINOR + (DAEMON_RPC_VERSION_ZMQ_MAJOR << 16);
+
+}  // namespace rpc
+
+}  // namespace cryptonote
diff --git a/src/rpc/message.cpp b/src/rpc/message.cpp
new file mode 100644
index 000000000..086820180
--- /dev/null
+++ b/src/rpc/message.cpp
@@ -0,0 +1,286 @@
+// Copyright (c) 2016-2017, The Monero Project
+// 
+// All rights reserved.
+// 
+// Redistribution and use in source and binary forms, with or without modification, are
+// permitted provided that the following conditions are met:
+// 
+// 1. Redistributions of source code must retain the above copyright notice, this list of
+//    conditions and the following disclaimer.
+// 
+// 2. Redistributions in binary form must reproduce the above copyright notice, this list
+//    of conditions and the following disclaimer in the documentation and/or other
+//    materials provided with the distribution.
+// 
+// 3. Neither the name of the copyright holder nor the names of its contributors may be
+//    used to endorse or promote products derived from this software without specific
+//    prior written permission.
+// 
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
+// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
+// THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+// STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
+// THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+#include "message.h"
+#include "daemon_rpc_version.h"
+#include "serialization/json_object.h"
+
+#include "rapidjson/writer.h"
+#include "rapidjson/stringbuffer.h"
+
+namespace cryptonote
+{
+
+namespace rpc
+{
+
+const char* Message::STATUS_OK = "OK";
+const char* Message::STATUS_RETRY = "Retry";
+const char* Message::STATUS_FAILED = "Failed";
+const char* Message::STATUS_BAD_REQUEST = "Invalid request type";
+const char* Message::STATUS_BAD_JSON = "Malformed json";
+
+rapidjson::Value Message::toJson(rapidjson::Document& doc) const
+{
+  rapidjson::Value val(rapidjson::kObjectType);
+
+  auto& al = doc.GetAllocator();
+
+  val.AddMember("status", rapidjson::StringRef(status.c_str()), al);
+  val.AddMember("error_details", rapidjson::StringRef(error_details.c_str()), al);
+  INSERT_INTO_JSON_OBJECT(val, doc, rpc_version, DAEMON_RPC_VERSION_ZMQ);
+
+  return val;
+}
+
+void Message::fromJson(rapidjson::Value& val)
+{
+  GET_FROM_JSON_OBJECT(val, status, status);
+  GET_FROM_JSON_OBJECT(val, error_details, error_details);
+  GET_FROM_JSON_OBJECT(val, rpc_version, rpc_version);
+}
+
+
+FullMessage::FullMessage(const std::string& request, Message* message)
+{
+  doc.SetObject();
+
+  doc.AddMember("method", rapidjson::StringRef(request.c_str()), doc.GetAllocator());
+  doc.AddMember("params", message->toJson(doc), doc.GetAllocator());
+
+  // required by JSON-RPC 2.0 spec
+  doc.AddMember("jsonrpc", rapidjson::Value("2.0"), doc.GetAllocator());
+}
+
+FullMessage::FullMessage(Message* message)
+{
+  doc.SetObject();
+
+  // required by JSON-RPC 2.0 spec
+  doc.AddMember("jsonrpc", "2.0", doc.GetAllocator());
+
+  if (message->status == Message::STATUS_OK)
+  {
+    doc.AddMember("response", message->toJson(doc), doc.GetAllocator());
+  }
+  else
+  {
+    cryptonote::rpc::error err;
+
+    err.error_str = message->status;
+    err.message = message->error_details;
+
+    INSERT_INTO_JSON_OBJECT(doc, doc, error, err);
+  }
+}
+
+FullMessage::FullMessage(const std::string& json_string, bool request)
+{
+  doc.Parse(json_string.c_str());
+  if (doc.HasParseError())
+  {
+    throw cryptonote::json::PARSE_FAIL();
+  }
+
+  OBJECT_HAS_MEMBER_OR_THROW(doc, "jsonrpc")
+
+  if (request)
+  {
+    OBJECT_HAS_MEMBER_OR_THROW(doc, "method")
+    OBJECT_HAS_MEMBER_OR_THROW(doc, "params")
+  }
+  else
+  {
+    if (!doc.HasMember("response") && !doc.HasMember("error"))
+    {
+      throw cryptonote::json::MISSING_KEY("error/response");
+    }
+  }
+}
+
+std::string FullMessage::getJson()
+{
+
+  if (!doc.HasMember("id"))
+  {
+    doc.AddMember("id", rapidjson::Value("unused"), doc.GetAllocator());
+  }
+
+  rapidjson::StringBuffer buf;
+
+  rapidjson::Writer<rapidjson::StringBuffer> writer(buf);
+
+  doc.Accept(writer);
+
+  return std::string(buf.GetString(), buf.GetSize());
+}
+
+std::string FullMessage::getRequestType() const
+{
+  OBJECT_HAS_MEMBER_OR_THROW(doc, "method")
+  return doc["method"].GetString();
+}
+
+rapidjson::Value& FullMessage::getMessage()
+{
+  if (doc.HasMember("params"))
+  {
+    return doc["params"];
+  }
+  else if (doc.HasMember("response"))
+  {
+    return doc["response"];
+  }
+
+  //else
+  OBJECT_HAS_MEMBER_OR_THROW(doc, "error")
+  return doc["error"];
+
+}
+
+rapidjson::Value FullMessage::getMessageCopy()
+{
+  rapidjson::Value& val = getMessage();
+
+  return rapidjson::Value(val, doc.GetAllocator());
+}
+
+rapidjson::Value& FullMessage::getID()
+{
+  OBJECT_HAS_MEMBER_OR_THROW(doc, "id")
+  return doc["id"];
+}
+
+void FullMessage::setID(rapidjson::Value& id)
+{
+  auto itr = doc.FindMember("id");
+  if (itr != doc.MemberEnd())
+  {
+    itr->value = id;
+  }
+  else
+  {
+    doc.AddMember("id", id, doc.GetAllocator());
+  }
+}
+
+cryptonote::rpc::error FullMessage::getError()
+{
+  cryptonote::rpc::error err;
+  err.use = false;
+  if (doc.HasMember("error"))
+  {
+    GET_FROM_JSON_OBJECT(doc, err, error);
+    err.use = true;
+  }
+
+  return err;
+}
+
+FullMessage FullMessage::requestMessage(const std::string& request, Message* message)
+{
+  return FullMessage(request, message);
+}
+
+FullMessage FullMessage::requestMessage(const std::string& request, Message* message, rapidjson::Value& id)
+{
+  auto mes = requestMessage(request, message);
+  mes.setID(id);
+  return mes;
+}
+
+FullMessage FullMessage::responseMessage(Message* message)
+{
+  return FullMessage(message);
+}
+
+FullMessage FullMessage::responseMessage(Message* message, rapidjson::Value& id)
+{
+  auto mes = responseMessage(message);
+  mes.setID(id);
+  return mes;
+}
+
+FullMessage* FullMessage::timeoutMessage()
+{
+  auto *full_message = new FullMessage();
+
+  auto& doc = full_message->doc;
+  auto& al = full_message->doc.GetAllocator();
+
+  doc.SetObject();
+
+  // required by JSON-RPC 2.0 spec
+  doc.AddMember("jsonrpc", "2.0", al);
+
+  cryptonote::rpc::error err;
+
+  err.error_str = "RPC request timed out.";
+  INSERT_INTO_JSON_OBJECT(doc, doc, err, err);
+
+  return full_message;
+}
+
+// convenience functions for bad input
+std::string BAD_REQUEST(const std::string& request)
+{
+  Message fail;
+  fail.status = Message::STATUS_BAD_REQUEST;
+  fail.error_details = std::string("\"") + request + "\" is not a valid request.";
+
+  FullMessage fail_response = FullMessage::responseMessage(&fail);
+
+  return fail_response.getJson();
+}
+
+std::string BAD_REQUEST(const std::string& request, rapidjson::Value& id)
+{
+  Message fail;
+  fail.status = Message::STATUS_BAD_REQUEST;
+  fail.error_details = std::string("\"") + request + "\" is not a valid request.";
+
+  FullMessage fail_response = FullMessage::responseMessage(&fail, id);
+
+  return fail_response.getJson();
+}
+
+std::string BAD_JSON(const std::string& error_details)
+{
+  Message fail;
+  fail.status = Message::STATUS_BAD_JSON;
+  fail.error_details = error_details;
+
+  FullMessage fail_response = FullMessage::responseMessage(&fail);
+
+  return fail_response.getJson();
+}
+
+
+}  // namespace rpc
+
+}  // namespace cryptonote
diff --git a/src/rpc/message.h b/src/rpc/message.h
new file mode 100644
index 000000000..d1abe3fbe
--- /dev/null
+++ b/src/rpc/message.h
@@ -0,0 +1,131 @@
+// Copyright (c) 2016-2017, The Monero Project
+// 
+// All rights reserved.
+// 
+// Redistribution and use in source and binary forms, with or without modification, are
+// permitted provided that the following conditions are met:
+// 
+// 1. Redistributions of source code must retain the above copyright notice, this list of
+//    conditions and the following disclaimer.
+// 
+// 2. Redistributions in binary form must reproduce the above copyright notice, this list
+//    of conditions and the following disclaimer in the documentation and/or other
+//    materials provided with the distribution.
+// 
+// 3. Neither the name of the copyright holder nor the names of its contributors may be
+//    used to endorse or promote products derived from this software without specific
+//    prior written permission.
+// 
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
+// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
+// THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+// STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
+// THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+#pragma once
+
+#include "rapidjson/document.h"
+#include "rpc/message_data_structs.h"
+#include <string>
+
+/* I normally hate using macros, but in this case it would be untenably
+ * verbose to not use a macro.  This macro saves the trouble of explicitly
+ * writing the below if block for every single RPC call.
+ */
+#define REQ_RESP_TYPES_MACRO( runtime_str, type, reqjson, resp_message_ptr, handler) \
+  \
+  if (runtime_str == type::name) \
+  { \
+    type::Request reqvar; \
+    type::Response *respvar = new type::Response(); \
+    \
+    reqvar.fromJson(reqjson); \
+    \
+    handler(reqvar, *respvar); \
+    \
+    resp_message_ptr = respvar; \
+  }
+
+namespace cryptonote
+{
+
+namespace rpc
+{
+
+  class Message
+  {
+    public:
+      static const char* STATUS_OK;
+      static const char* STATUS_RETRY;
+      static const char* STATUS_FAILED;
+      static const char* STATUS_BAD_REQUEST;
+      static const char* STATUS_BAD_JSON;
+
+      Message() : status(STATUS_OK) { }
+
+      virtual ~Message() { }
+
+      virtual rapidjson::Value toJson(rapidjson::Document& doc) const;
+
+      virtual void fromJson(rapidjson::Value& val);
+
+      std::string status;
+      std::string error_details;
+      uint32_t rpc_version;
+  };
+
+  class FullMessage
+  {
+    public:
+      ~FullMessage() { }
+
+      FullMessage(FullMessage&& rhs) noexcept : doc(std::move(rhs.doc)) { }
+
+      FullMessage(const std::string& json_string, bool request=false);
+
+      std::string getJson();
+
+      std::string getRequestType() const;
+
+      rapidjson::Value& getMessage();
+
+      rapidjson::Value getMessageCopy();
+
+      rapidjson::Value& getID();
+
+      void setID(rapidjson::Value& id);
+
+      cryptonote::rpc::error getError();
+
+      static FullMessage requestMessage(const std::string& request, Message* message);
+      static FullMessage requestMessage(const std::string& request, Message* message, rapidjson::Value& id);
+
+      static FullMessage responseMessage(Message* message);
+      static FullMessage responseMessage(Message* message, rapidjson::Value& id);
+
+      static FullMessage* timeoutMessage();
+    private:
+
+      FullMessage() = default;
+
+      FullMessage(const std::string& request, Message* message);
+      FullMessage(Message* message);
+
+      rapidjson::Document doc;
+  };
+
+
+  // convenience functions for bad input
+  std::string BAD_REQUEST(const std::string& request);
+  std::string BAD_REQUEST(const std::string& request, rapidjson::Value& id);
+
+  std::string BAD_JSON(const std::string& error_details);
+
+
+}  // namespace rpc
+
+}  // namespace cryptonote
diff --git a/src/rpc/message_data_structs.h b/src/rpc/message_data_structs.h
new file mode 100644
index 000000000..00f1e0caa
--- /dev/null
+++ b/src/rpc/message_data_structs.h
@@ -0,0 +1,189 @@
+// Copyright (c) 2016-2017, The Monero Project
+// 
+// All rights reserved.
+// 
+// Redistribution and use in source and binary forms, with or without modification, are
+// permitted provided that the following conditions are met:
+// 
+// 1. Redistributions of source code must retain the above copyright notice, this list of
+//    conditions and the following disclaimer.
+// 
+// 2. Redistributions in binary form must reproduce the above copyright notice, this list
+//    of conditions and the following disclaimer in the documentation and/or other
+//    materials provided with the distribution.
+// 
+// 3. Neither the name of the copyright holder nor the names of its contributors may be
+//    used to endorse or promote products derived from this software without specific
+//    prior written permission.
+// 
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
+// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
+// THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+// STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
+// THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+#pragma once
+
+#include "crypto/hash.h"
+#include "cryptonote_basic/cryptonote_basic.h"
+#include "ringct/rctSigs.h"
+
+#include <unordered_map>
+#include <vector>
+
+namespace cryptonote
+{
+
+namespace rpc
+{
+
+  struct block_with_transactions
+  {
+    cryptonote::block block;
+    std::unordered_map<crypto::hash, cryptonote::transaction> transactions;
+  };
+
+  typedef std::vector<uint64_t> tx_output_indices;
+
+  typedef std::vector<tx_output_indices> block_output_indices;
+
+  struct transaction_info
+  {
+    cryptonote::transaction transaction;
+    bool in_pool;
+    uint64_t height;
+  };
+
+  struct output_key_and_amount_index
+  {
+    uint64_t amount_index;
+    crypto::public_key key;
+  };
+
+  typedef std::vector<output_key_and_amount_index> outputs_for_amount;
+
+  struct amount_with_random_outputs
+  {
+    uint64_t amount;
+    outputs_for_amount outputs;
+  };
+
+  struct peer
+  {
+    uint64_t id;
+    uint32_t ip;
+    uint16_t port;
+    uint64_t last_seen;
+  };
+
+  struct tx_in_pool
+  {
+    cryptonote::transaction tx;
+    crypto::hash tx_hash;
+    uint64_t blob_size;
+    uint64_t fee;
+    crypto::hash max_used_block_hash;
+    uint64_t max_used_block_height;
+    bool kept_by_block;
+    crypto::hash last_failed_block_hash;
+    uint64_t last_failed_block_height;
+    uint64_t receive_time;
+    uint64_t last_relayed_time;
+    bool relayed;
+    bool do_not_relay;
+  };
+
+  typedef std::unordered_map<crypto::key_image, std::vector<crypto::hash> > key_images_with_tx_hashes;
+
+  struct output_amount_count
+  {
+    uint64_t amount;
+    uint64_t total_count;
+    uint64_t unlocked_count;
+    uint64_t recent_count;
+  };
+
+  struct output_amount_and_index
+  {
+    uint64_t amount;
+    uint64_t index;
+  };
+
+  struct output_key_mask_unlocked
+  {
+    crypto::public_key key;
+    rct::key mask;
+    bool unlocked;
+  };
+
+  struct hard_fork_info
+  {
+    uint8_t version;
+    bool enabled;
+    uint32_t window;
+    uint32_t votes;
+    uint32_t threshold;
+    uint8_t voting;
+    uint32_t state;
+    uint64_t earliest_height;
+  };
+
+  //required by JSON-RPC 2.0 spec
+  struct error
+  {
+    // not really using code, maybe later.
+    error() : use(false), code(1) { }
+
+    bool use;  // do not serialize
+
+    int32_t code;
+
+    // not required by spec, but int error codes aren't perfect
+    std::string error_str;
+
+    std::string message;
+
+    //TODO: data member?  not required, may want later.
+  };
+
+  struct BlockHeaderResponse
+  {
+    uint64_t major_version;
+    uint64_t minor_version;
+    uint64_t timestamp;
+    crypto::hash  prev_id;
+    uint32_t nonce;
+    uint64_t height;
+    uint64_t depth;
+    crypto::hash hash;
+    uint64_t difficulty;
+    uint64_t reward;
+  };
+
+  struct DaemonInfo
+  {
+    uint64_t height;
+    uint64_t target_height;
+    uint64_t difficulty;
+    uint64_t target;
+    uint64_t tx_count;
+    uint64_t tx_pool_size;
+    uint64_t alt_blocks_count;
+    uint64_t outgoing_connections_count;
+    uint64_t incoming_connections_count;
+    uint64_t white_peerlist_size;
+    uint64_t grey_peerlist_size;
+    bool testnet;
+    crypto::hash top_block_hash;
+    uint64_t cumulative_difficulty;
+    uint64_t block_size_limit;
+    uint64_t start_time;
+  };
+
+}  // namespace rpc
+
+}  // namespace cryptonote
diff --git a/src/rpc/rpc_handler.h b/src/rpc/rpc_handler.h
new file mode 100644
index 000000000..d75180199
--- /dev/null
+++ b/src/rpc/rpc_handler.h
@@ -0,0 +1,54 @@
+// Copyright (c) 2016, The Monero Project
+// 
+// All rights reserved.
+// 
+// Redistribution and use in source and binary forms, with or without modification, are
+// permitted provided that the following conditions are met:
+// 
+// 1. Redistributions of source code must retain the above copyright notice, this list of
+//    conditions and the following disclaimer.
+// 
+// 2. Redistributions in binary form must reproduce the above copyright notice, this list
+//    of conditions and the following disclaimer in the documentation and/or other
+//    materials provided with the distribution.
+// 
+// 3. Neither the name of the copyright holder nor the names of its contributors may be
+//    used to endorse or promote products derived from this software without specific
+//    prior written permission.
+// 
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
+// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
+// THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+// STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
+// THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+#pragma once
+
+#include <string>
+
+namespace cryptonote
+{
+
+namespace rpc
+{
+
+
+class RpcHandler
+{
+  public:
+
+    virtual std::string handle(const std::string& request) = 0;
+
+    RpcHandler() { }
+
+    virtual ~RpcHandler() { }
+};
+
+
+}  // rpc
+
+}  // cryptonote
diff --git a/src/rpc/zmq_server.cpp b/src/rpc/zmq_server.cpp
new file mode 100644
index 000000000..afdff2328
--- /dev/null
+++ b/src/rpc/zmq_server.cpp
@@ -0,0 +1,141 @@
+// Copyright (c) 2016, The Monero Project
+// 
+// All rights reserved.
+// 
+// Redistribution and use in source and binary forms, with or without modification, are
+// permitted provided that the following conditions are met:
+// 
+// 1. Redistributions of source code must retain the above copyright notice, this list of
+//    conditions and the following disclaimer.
+// 
+// 2. Redistributions in binary form must reproduce the above copyright notice, this list
+//    of conditions and the following disclaimer in the documentation and/or other
+//    materials provided with the distribution.
+// 
+// 3. Neither the name of the copyright holder nor the names of its contributors may be
+//    used to endorse or promote products derived from this software without specific
+//    prior written permission.
+// 
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
+// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
+// THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+// STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
+// THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+#include "zmq_server.h"
+#include <boost/chrono/chrono.hpp>
+
+namespace cryptonote
+{
+
+namespace rpc
+{
+
+ZmqServer::ZmqServer(RpcHandler& h) :
+    handler(h),
+    stop_signal(false),
+    running(false),
+    context(DEFAULT_NUM_ZMQ_THREADS) // TODO: make this configurable
+{
+}
+
+ZmqServer::~ZmqServer()
+{
+}
+
+void ZmqServer::serve()
+{
+
+  while (1)
+  {
+    try
+    {
+      zmq::message_t message;
+
+      if (!rep_socket)
+      {
+        throw std::runtime_error("ZMQ RPC server reply socket is null");
+      }
+      while (rep_socket->recv(&message))
+      {
+        std::string message_string(reinterpret_cast<const char *>(message.data()), message.size());
+
+        MDEBUG(std::string("Received RPC request: \"") + message_string + "\"");
+
+        std::string response = handler.handle(message_string);
+
+        zmq::message_t reply(response.size());
+        memcpy((void *) reply.data(), response.c_str(), response.size());
+
+        rep_socket->send(reply);
+        MDEBUG(std::string("Sent RPC reply: \"") + response + "\"");
+
+      }
+    }
+    catch (const boost::thread_interrupted& e)
+    {
+      MDEBUG("ZMQ Server thread interrupted.");
+    }
+    catch (const zmq::error_t& e)
+    {
+      MERROR(std::string("ZMQ error: ") + e.what());
+    }
+    boost::this_thread::interruption_point();
+  }
+}
+
+bool ZmqServer::addIPCSocket(std::string address, std::string port)
+{
+  MERROR("ZmqServer::addIPCSocket not yet implemented!");
+  return false;
+}
+
+bool ZmqServer::addTCPSocket(std::string address, std::string port)
+{
+  try
+  {
+    std::string addr_prefix("tcp://");
+
+    rep_socket.reset(new zmq::socket_t(context, ZMQ_REP));
+
+    rep_socket->setsockopt(ZMQ_RCVTIMEO, DEFAULT_RPC_RECV_TIMEOUT_MS);
+
+    std::string bind_address = addr_prefix + address + std::string(":") + port;
+    rep_socket->bind(bind_address.c_str());
+  }
+  catch (const std::exception& e)
+  {
+    MERROR(std::string("Error creating ZMQ Socket: ") + e.what());
+    return false;
+  }
+  return true;
+}
+
+void ZmqServer::run()
+{
+  running = true;
+  run_thread = boost::thread(boost::bind(&ZmqServer::serve, this));
+}
+
+void ZmqServer::stop()
+{
+  if (!running) return;
+
+  stop_signal = true;
+
+  run_thread.interrupt();
+  run_thread.join();
+
+  running = false;
+
+  return;
+}
+
+
+}  // namespace cryptonote
+
+}  // namespace rpc
diff --git a/src/rpc/zmq_server.h b/src/rpc/zmq_server.h
new file mode 100644
index 000000000..c278ff759
--- /dev/null
+++ b/src/rpc/zmq_server.h
@@ -0,0 +1,83 @@
+// Copyright (c) 2016, The Monero Project
+// 
+// All rights reserved.
+// 
+// Redistribution and use in source and binary forms, with or without modification, are
+// permitted provided that the following conditions are met:
+// 
+// 1. Redistributions of source code must retain the above copyright notice, this list of
+//    conditions and the following disclaimer.
+// 
+// 2. Redistributions in binary form must reproduce the above copyright notice, this list
+//    of conditions and the following disclaimer in the documentation and/or other
+//    materials provided with the distribution.
+// 
+// 3. Neither the name of the copyright holder nor the names of its contributors may be
+//    used to endorse or promote products derived from this software without specific
+//    prior written permission.
+// 
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
+// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
+// THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+// STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
+// THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+#pragma once
+
+#include <boost/thread/thread.hpp>
+#include <zmq.hpp>
+#include <string>
+#include <memory>
+
+#include "common/command_line.h"
+
+#include "rpc_handler.h"
+
+namespace cryptonote
+{
+
+namespace rpc
+{
+
+static constexpr int DEFAULT_NUM_ZMQ_THREADS = 1;
+static constexpr int DEFAULT_RPC_RECV_TIMEOUT_MS = 1000;
+
+class ZmqServer
+{
+  public:
+
+    ZmqServer(RpcHandler& h);
+
+    ~ZmqServer();
+
+    static void init_options(boost::program_options::options_description& desc);
+
+    void serve();
+
+    bool addIPCSocket(std::string address, std::string port);
+    bool addTCPSocket(std::string address, std::string port);
+
+    void run();
+    void stop();
+
+  private:
+    RpcHandler& handler;
+
+    volatile bool stop_signal;
+    volatile bool running;
+
+    zmq::context_t context;
+
+    boost::thread run_thread;
+
+    std::unique_ptr<zmq::socket_t> rep_socket;
+};
+
+
+}  // namespace cryptonote
+
+}  // namespace rpc
diff --git a/src/serialization/CMakeLists.txt b/src/serialization/CMakeLists.txt
new file mode 100644
index 000000000..e4aa0b6a2
--- /dev/null
+++ b/src/serialization/CMakeLists.txt
@@ -0,0 +1,54 @@
+# Copyright (c) 2016, The Monero Project
+#
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without modification, are
+# permitted provided that the following conditions are met:
+#
+# 1. Redistributions of source code must retain the above copyright notice, this list of
+#    conditions and the following disclaimer.
+#
+# 2. Redistributions in binary form must reproduce the above copyright notice, this list
+#    of conditions and the following disclaimer in the documentation and/or other
+#    materials provided with the distribution.
+#
+# 3. Neither the name of the copyright holder nor the names of its contributors may be
+#    used to endorse or promote products derived from this software without specific
+#    prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
+# EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+# MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
+# THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+# STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
+# THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+set(serialization_sources
+  json_object.cpp)
+
+set(serialization_headers)
+
+set(serialization_private_headers
+  json_object.h)
+
+monero_private_headers(serialization
+  ${serialization_private_headers})
+monero_add_library(serialization
+  ${serialization_sources}
+  ${serialization_headers}
+  ${serialization_private_headers})
+target_link_libraries(serialization
+  LINK_PRIVATE
+    cryptonote_core
+    cryptonote_protocol
+    ${Boost_CHRONO_LIBRARY}
+    ${Boost_REGEX_LIBRARY}
+    ${Boost_SYSTEM_LIBRARY}
+    ${Boost_THREAD_LIBRARY}
+    ${EXTRA_LIBRARIES})
+add_dependencies(serialization
+  version)
+
diff --git a/src/serialization/json_object.cpp b/src/serialization/json_object.cpp
new file mode 100644
index 000000000..ead3fdd58
--- /dev/null
+++ b/src/serialization/json_object.cpp
@@ -0,0 +1,1165 @@
+// Copyright (c) 2016-2017, The Monero Project
+// 
+// All rights reserved.
+// 
+// Redistribution and use in source and binary forms, with or without modification, are
+// permitted provided that the following conditions are met:
+// 
+// 1. Redistributions of source code must retain the above copyright notice, this list of
+//    conditions and the following disclaimer.
+// 
+// 2. Redistributions in binary form must reproduce the above copyright notice, this list
+//    of conditions and the following disclaimer in the documentation and/or other
+//    materials provided with the distribution.
+// 
+// 3. Neither the name of the copyright holder nor the names of its contributors may be
+//    used to endorse or promote products derived from this software without specific
+//    prior written permission.
+// 
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
+// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
+// THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+// STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
+// THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+#include "json_object.h"
+
+#include <limits>
+#include "string_tools.h"
+
+namespace cryptonote
+{
+
+namespace json
+{
+
+namespace
+{
+  template<typename Source, typename Destination>
+  constexpr bool precision_loss()
+  {
+    return
+      std::numeric_limits<Destination>::is_signed != std::numeric_limits<Source>::is_signed ||
+      std::numeric_limits<Destination>::min() > std::numeric_limits<Source>::min() ||
+      std::numeric_limits<Destination>::max() < std::numeric_limits<Source>::max();
+  }
+
+  template<typename Source, typename Type>
+  void convert_numeric(Source source, Type& i)
+  {
+    static_assert(
+      std::numeric_limits<Source>::is_signed == std::numeric_limits<Type>::is_signed,
+      "source and destination signs do not match"
+    );
+    if (source < std::numeric_limits<Type>::min())
+    {
+      throw WRONG_TYPE{"numeric underflow"};
+    }
+    if (std::numeric_limits<Type>::max() < source)
+    {
+      throw WRONG_TYPE{"numeric overflow"};
+    }
+    i = Type(source);
+  }
+
+  template<typename Type>
+  void to_int(const rapidjson::Value& val, Type& i)
+  {
+    if (!val.IsInt())
+    {
+      throw WRONG_TYPE{"integer"};
+    }
+    convert_numeric(val.GetInt(), i);
+  }
+  template<typename Type>
+  void to_int64(const rapidjson::Value& val, Type& i)
+  {
+    if (!val.IsInt64())
+    {
+      throw WRONG_TYPE{"integer"};
+    }
+    convert_numeric(val.GetInt64(), i);
+  }
+
+  template<typename Type>
+  void to_uint(const rapidjson::Value& val, Type& i)
+  {
+    if (!val.IsUint())
+    {
+      throw WRONG_TYPE{"unsigned integer"};
+    }
+    convert_numeric(val.GetUint(), i);
+  }
+  template<typename Type>
+  void to_uint64(const rapidjson::Value& val, Type& i)
+  {
+    if (!val.IsUint64())
+    {
+      throw WRONG_TYPE{"unsigned integer"};
+    }
+    convert_numeric(val.GetUint64(), i);
+  }
+}
+
+void toJsonValue(rapidjson::Document& doc, const std::string& i, rapidjson::Value& val)
+{
+  val = rapidjson::Value(i.c_str(), doc.GetAllocator());
+}
+
+void fromJsonValue(const rapidjson::Value& val, std::string& str)
+{
+  if (!val.IsString())
+  {
+    throw WRONG_TYPE("string");
+  }
+
+  str = val.GetString();
+}
+
+void toJsonValue(rapidjson::Document& doc, bool i, rapidjson::Value& val)
+{
+  val.SetBool(i);
+}
+
+void fromJsonValue(const rapidjson::Value& val, bool& b)
+{
+  if (!val.IsBool())
+  {
+    throw WRONG_TYPE("boolean");
+  }
+  b = val.GetBool();
+}
+
+void fromJsonValue(const rapidjson::Value& val, unsigned char& i)
+{
+  to_uint(val, i);
+}
+
+void fromJsonValue(const rapidjson::Value& val, char& i)
+{
+  to_int(val, i);
+}
+
+void fromJsonValue(const rapidjson::Value& val, signed char& i)
+{
+  to_int(val, i);
+}
+
+void fromJsonValue(const rapidjson::Value& val, unsigned short& i)
+{
+  to_uint(val, i);
+}
+
+void fromJsonValue(const rapidjson::Value& val, short& i)
+{
+  to_int(val, i);
+}
+
+void toJsonValue(rapidjson::Document& doc, const unsigned int i, rapidjson::Value& val)
+{
+  val = rapidjson::Value(i);
+}
+
+void fromJsonValue(const rapidjson::Value& val, unsigned int& i)
+{
+  to_uint(val, i);
+}
+
+void toJsonValue(rapidjson::Document& doc, const int i, rapidjson::Value& val)
+{
+  val = rapidjson::Value(i);
+}
+
+void fromJsonValue(const rapidjson::Value& val, int& i)
+{
+  to_int(val, i);
+}
+
+void toJsonValue(rapidjson::Document& doc, const unsigned long long i, rapidjson::Value& val)
+{
+  static_assert(!precision_loss<unsigned long long, std::uint64_t>(), "precision loss");
+  val = rapidjson::Value(std::uint64_t(i));
+}
+
+void fromJsonValue(const rapidjson::Value& val, unsigned long long& i)
+{
+  to_uint64(val, i);
+}
+
+void toJsonValue(rapidjson::Document& doc, const long long i, rapidjson::Value& val)
+{
+  static_assert(!precision_loss<long long, std::int64_t>(), "precision loss");
+  val = rapidjson::Value(std::int64_t(i));
+}
+
+void fromJsonValue(const rapidjson::Value& val, long long& i)
+{
+  to_int64(val, i);
+}
+
+void fromJsonValue(const rapidjson::Value& val, unsigned long& i)
+{
+  to_uint64(val, i);
+}
+
+void fromJsonValue(const rapidjson::Value& val, long& i)
+{
+  to_int64(val, i);
+}
+
+void toJsonValue(rapidjson::Document& doc, const cryptonote::transaction& tx, rapidjson::Value& val)
+{
+  val.SetObject();
+
+  INSERT_INTO_JSON_OBJECT(val, doc, version, tx.version);
+  INSERT_INTO_JSON_OBJECT(val, doc, unlock_time, tx.unlock_time);
+  INSERT_INTO_JSON_OBJECT(val, doc, vin, tx.vin);
+  INSERT_INTO_JSON_OBJECT(val, doc, vout, tx.vout);
+  INSERT_INTO_JSON_OBJECT(val, doc, extra, tx.extra);
+  INSERT_INTO_JSON_OBJECT(val, doc, signatures, tx.signatures);
+  INSERT_INTO_JSON_OBJECT(val, doc, rct_signatures, tx.rct_signatures);
+}
+
+
+void fromJsonValue(const rapidjson::Value& val, cryptonote::transaction& tx)
+{
+  if (!val.IsObject())
+  {
+    throw WRONG_TYPE("json object");
+  }
+
+  GET_FROM_JSON_OBJECT(val, tx.version, version);
+  GET_FROM_JSON_OBJECT(val, tx.unlock_time, unlock_time);
+  GET_FROM_JSON_OBJECT(val, tx.vin, vin);
+  GET_FROM_JSON_OBJECT(val, tx.vout, vout);
+  GET_FROM_JSON_OBJECT(val, tx.extra, extra);
+  GET_FROM_JSON_OBJECT(val, tx.signatures, signatures);
+  GET_FROM_JSON_OBJECT(val, tx.rct_signatures, rct_signatures);
+}
+
+void toJsonValue(rapidjson::Document& doc, const cryptonote::block& b, rapidjson::Value& val)
+{
+  val.SetObject();
+
+  INSERT_INTO_JSON_OBJECT(val, doc, major_version, b.major_version);
+  INSERT_INTO_JSON_OBJECT(val, doc, minor_version, b.minor_version);
+  INSERT_INTO_JSON_OBJECT(val, doc, timestamp, b.timestamp);
+  INSERT_INTO_JSON_OBJECT(val, doc, prev_id, b.prev_id);
+  INSERT_INTO_JSON_OBJECT(val, doc, nonce, b.nonce);
+  INSERT_INTO_JSON_OBJECT(val, doc, miner_tx, b.miner_tx);
+  INSERT_INTO_JSON_OBJECT(val, doc, tx_hashes, b.tx_hashes);
+}
+
+
+void fromJsonValue(const rapidjson::Value& val, cryptonote::block& b)
+{
+  if (!val.IsObject())
+  {
+    throw WRONG_TYPE("json object");
+  }
+
+  GET_FROM_JSON_OBJECT(val, b.major_version, major_version);
+  GET_FROM_JSON_OBJECT(val, b.minor_version, minor_version);
+  GET_FROM_JSON_OBJECT(val, b.timestamp, timestamp);
+  GET_FROM_JSON_OBJECT(val, b.prev_id, prev_id);
+  GET_FROM_JSON_OBJECT(val, b.nonce, nonce);
+  GET_FROM_JSON_OBJECT(val, b.miner_tx, miner_tx);
+  GET_FROM_JSON_OBJECT(val, b.tx_hashes, tx_hashes);
+}
+
+void toJsonValue(rapidjson::Document& doc, const cryptonote::txin_v& txin, rapidjson::Value& val)
+{
+  val.SetObject();
+
+  if (txin.type() == typeid(cryptonote::txin_gen))
+  {
+    val.AddMember("type", "txin_gen", doc.GetAllocator());
+    INSERT_INTO_JSON_OBJECT(val, doc, value, boost::get<cryptonote::txin_gen>(txin));
+  }
+  else if (txin.type() == typeid(cryptonote::txin_to_script))
+  {
+    val.AddMember("type", "txin_to_script", doc.GetAllocator());
+    INSERT_INTO_JSON_OBJECT(val, doc, value, boost::get<cryptonote::txin_to_script>(txin));
+  }
+  else if (txin.type() == typeid(cryptonote::txin_to_scripthash))
+  {
+    val.AddMember("type", "txin_to_scripthash", doc.GetAllocator());
+    INSERT_INTO_JSON_OBJECT(val, doc, value, boost::get<cryptonote::txin_to_scripthash>(txin));
+  }
+  else if (txin.type() == typeid(cryptonote::txin_to_key))
+  {
+    val.AddMember("type", "txin_to_key", doc.GetAllocator());
+    INSERT_INTO_JSON_OBJECT(val, doc, value, boost::get<cryptonote::txin_to_key>(txin));
+  }
+}
+
+
+void fromJsonValue(const rapidjson::Value& val, cryptonote::txin_v& txin)
+{
+  if (!val.IsObject())
+  {
+    throw WRONG_TYPE("json object");
+  }
+
+  OBJECT_HAS_MEMBER_OR_THROW(val, "type")
+  OBJECT_HAS_MEMBER_OR_THROW(val, "value")
+  if (val["type"]== "txin_gen")
+  {
+    cryptonote::txin_gen tmpVal;
+    fromJsonValue(val["value"], tmpVal);
+    txin = tmpVal;
+  }
+  else if (val["type"]== "txin_to_script")
+  {
+    cryptonote::txin_to_script tmpVal;
+    fromJsonValue(val["value"], tmpVal);
+    txin = tmpVal;
+  }
+  else if (val["type"] == "txin_to_scripthash")
+  {
+    cryptonote::txin_to_scripthash tmpVal;
+    fromJsonValue(val["value"], tmpVal);
+    txin = tmpVal;
+  }
+  else if (val["type"] == "txin_to_key")
+  {
+    cryptonote::txin_to_key tmpVal;
+    fromJsonValue(val["value"], tmpVal);
+    txin = tmpVal;
+  }
+}
+
+void toJsonValue(rapidjson::Document& doc, const cryptonote::txin_gen& txin, rapidjson::Value& val)
+{
+  val.SetObject();
+
+  INSERT_INTO_JSON_OBJECT(val, doc, height, txin.height);
+}
+
+
+void fromJsonValue(const rapidjson::Value& val, cryptonote::txin_gen& txin)
+{
+  if (!val.IsObject())
+  {
+    throw WRONG_TYPE("json object");
+  }
+
+  GET_FROM_JSON_OBJECT(val, txin.height, height);
+}
+
+void toJsonValue(rapidjson::Document& doc, const cryptonote::txin_to_script& txin, rapidjson::Value& val)
+{
+  val.SetObject();
+
+  INSERT_INTO_JSON_OBJECT(val, doc, prev, txin.prev);
+  INSERT_INTO_JSON_OBJECT(val, doc, prevout, txin.prevout);
+  INSERT_INTO_JSON_OBJECT(val, doc, sigset, txin.sigset);
+}
+
+
+void fromJsonValue(const rapidjson::Value& val, cryptonote::txin_to_script& txin)
+{
+  if (!val.IsObject())
+  {
+    throw WRONG_TYPE("json object");
+  }
+
+  GET_FROM_JSON_OBJECT(val, txin.prev, prev);
+  GET_FROM_JSON_OBJECT(val, txin.prevout, prevout);
+  GET_FROM_JSON_OBJECT(val, txin.sigset, sigset);
+}
+
+void toJsonValue(rapidjson::Document& doc, const cryptonote::txin_to_scripthash& txin, rapidjson::Value& val)
+{
+  val.SetObject();
+
+  INSERT_INTO_JSON_OBJECT(val, doc, prev, txin.prev);
+  INSERT_INTO_JSON_OBJECT(val, doc, prevout, txin.prevout);
+  INSERT_INTO_JSON_OBJECT(val, doc, script, txin.script);
+  INSERT_INTO_JSON_OBJECT(val, doc, sigset, txin.sigset);
+}
+
+
+void fromJsonValue(const rapidjson::Value& val, cryptonote::txin_to_scripthash& txin)
+{
+  if (!val.IsObject())
+  {
+    throw WRONG_TYPE("json object");
+  }
+
+  GET_FROM_JSON_OBJECT(val, txin.prev, prev);
+  GET_FROM_JSON_OBJECT(val, txin.prevout, prevout);
+  GET_FROM_JSON_OBJECT(val, txin.script, script);
+  GET_FROM_JSON_OBJECT(val, txin.sigset, sigset);
+}
+
+void toJsonValue(rapidjson::Document& doc, const cryptonote::txin_to_key& txin, rapidjson::Value& val)
+{
+  val.SetObject();
+
+  INSERT_INTO_JSON_OBJECT(val, doc, amount, txin.amount);
+  INSERT_INTO_JSON_OBJECT(val, doc, key_offsets, txin.key_offsets);
+  INSERT_INTO_JSON_OBJECT(val, doc, k_image, txin.k_image);
+}
+
+
+void fromJsonValue(const rapidjson::Value& val, cryptonote::txin_to_key& txin)
+{
+  if (!val.IsObject())
+  {
+    throw WRONG_TYPE("json object");
+  }
+
+  GET_FROM_JSON_OBJECT(val, txin.amount, amount);
+  GET_FROM_JSON_OBJECT(val, txin.key_offsets, key_offsets);
+  GET_FROM_JSON_OBJECT(val, txin.k_image, k_image);
+}
+
+void toJsonValue(rapidjson::Document& doc, const cryptonote::txout_target_v& txout, rapidjson::Value& val)
+{
+  val.SetObject();
+
+  if (txout.type() == typeid(cryptonote::txout_to_script))
+  {
+    val.AddMember("type", "txout_to_script", doc.GetAllocator());
+    INSERT_INTO_JSON_OBJECT(val, doc, value, boost::get<cryptonote::txout_to_script>(txout));
+  }
+  else if (txout.type() == typeid(cryptonote::txout_to_scripthash))
+  {
+    val.AddMember("type", "txout_to_scripthash", doc.GetAllocator());
+    INSERT_INTO_JSON_OBJECT(val, doc, value, boost::get<cryptonote::txout_to_scripthash>(txout));
+  }
+  else if (txout.type() == typeid(cryptonote::txout_to_key))
+  {
+    val.AddMember("type", "txout_to_key", doc.GetAllocator());
+    INSERT_INTO_JSON_OBJECT(val, doc, value, boost::get<cryptonote::txout_to_key>(txout));
+  }
+}
+
+
+void fromJsonValue(const rapidjson::Value& val, cryptonote::txout_target_v& txout)
+{
+  if (!val.IsObject())
+  {
+    throw WRONG_TYPE("json object");
+  }
+
+  OBJECT_HAS_MEMBER_OR_THROW(val, "type")
+  OBJECT_HAS_MEMBER_OR_THROW(val, "value")
+  if (val["type"]== "txout_to_script")
+  {
+    cryptonote::txout_to_script tmpVal;
+    fromJsonValue(val["value"], tmpVal);
+    txout = tmpVal;
+  }
+  else if (val["type"] == "txout_to_scripthash")
+  {
+    cryptonote::txout_to_scripthash tmpVal;
+    fromJsonValue(val["value"], tmpVal);
+    txout = tmpVal;
+  }
+  else if (val["type"] == "txout_to_key")
+  {
+    cryptonote::txout_to_key tmpVal;
+    fromJsonValue(val["value"], tmpVal);
+    txout = tmpVal;
+  }
+}
+
+void toJsonValue(rapidjson::Document& doc, const cryptonote::txout_to_script& txout, rapidjson::Value& val)
+{
+  val.SetObject();
+
+  INSERT_INTO_JSON_OBJECT(val, doc, keys, txout.keys);
+  INSERT_INTO_JSON_OBJECT(val, doc, script, txout.script);
+}
+
+
+void fromJsonValue(const rapidjson::Value& val, cryptonote::txout_to_script& txout)
+{
+  if (!val.IsObject())
+  {
+    throw WRONG_TYPE("json object");
+  }
+
+  GET_FROM_JSON_OBJECT(val, txout.keys, keys);
+  GET_FROM_JSON_OBJECT(val, txout.script, script);
+}
+
+void toJsonValue(rapidjson::Document& doc, const cryptonote::txout_to_scripthash& txout, rapidjson::Value& val)
+{
+  val.SetObject();
+
+  INSERT_INTO_JSON_OBJECT(val, doc, hash, txout.hash);
+}
+
+
+void fromJsonValue(const rapidjson::Value& val, cryptonote::txout_to_scripthash& txout)
+{
+  if (!val.IsObject())
+  {
+    throw WRONG_TYPE("json object");
+  }
+
+  GET_FROM_JSON_OBJECT(val, txout.hash, hash);
+}
+
+void toJsonValue(rapidjson::Document& doc, const cryptonote::txout_to_key& txout, rapidjson::Value& val)
+{
+  val.SetObject();
+
+  INSERT_INTO_JSON_OBJECT(val, doc, key, txout.key);
+}
+
+
+void fromJsonValue(const rapidjson::Value& val, cryptonote::txout_to_key& txout)
+{
+  if (!val.IsObject())
+  {
+    throw WRONG_TYPE("json object");
+  }
+
+  GET_FROM_JSON_OBJECT(val, txout.key, key);
+}
+
+void toJsonValue(rapidjson::Document& doc, const cryptonote::tx_out& txout, rapidjson::Value& val)
+{
+  val.SetObject();
+
+  INSERT_INTO_JSON_OBJECT(val, doc, amount, txout.amount);
+  INSERT_INTO_JSON_OBJECT(val, doc, target, txout.target);
+}
+
+void fromJsonValue(const rapidjson::Value& val, cryptonote::tx_out& txout)
+{
+  if (!val.IsObject())
+  {
+    throw WRONG_TYPE("json object");
+  }
+
+  GET_FROM_JSON_OBJECT(val, txout.amount, amount);
+  GET_FROM_JSON_OBJECT(val, txout.target, target);
+}
+
+void toJsonValue(rapidjson::Document& doc, const cryptonote::connection_info& info, rapidjson::Value& val)
+{
+  val.SetObject();
+
+  auto& al = doc.GetAllocator();
+  INSERT_INTO_JSON_OBJECT(val, doc, incoming, info.incoming);
+  INSERT_INTO_JSON_OBJECT(val, doc, localhost, info.localhost);
+  INSERT_INTO_JSON_OBJECT(val, doc, local_ip, info.local_ip);
+
+  INSERT_INTO_JSON_OBJECT(val, doc, ip, info.ip);
+  INSERT_INTO_JSON_OBJECT(val, doc, port, info.port);
+
+  INSERT_INTO_JSON_OBJECT(val, doc, peer_id, info.peer_id);
+
+  INSERT_INTO_JSON_OBJECT(val, doc, recv_count, info.recv_count);
+  INSERT_INTO_JSON_OBJECT(val, doc, recv_idle_time, info.recv_idle_time);
+
+  INSERT_INTO_JSON_OBJECT(val, doc, send_count, info.send_count);
+  INSERT_INTO_JSON_OBJECT(val, doc, send_idle_time, info.send_idle_time);
+
+  INSERT_INTO_JSON_OBJECT(val, doc, state, info.state);
+
+  INSERT_INTO_JSON_OBJECT(val, doc, live_time, info.live_time);
+
+  INSERT_INTO_JSON_OBJECT(val, doc, avg_download, info.avg_download);
+  INSERT_INTO_JSON_OBJECT(val, doc, current_download, info.current_download);
+
+  INSERT_INTO_JSON_OBJECT(val, doc, avg_upload, info.avg_upload);
+  INSERT_INTO_JSON_OBJECT(val, doc, current_upload, info.current_upload);
+}
+
+
+void fromJsonValue(const rapidjson::Value& val, cryptonote::connection_info& info)
+{
+  if (!val.IsObject())
+  {
+    throw WRONG_TYPE("json object");
+  }
+
+  GET_FROM_JSON_OBJECT(val, info.incoming, incoming);
+  GET_FROM_JSON_OBJECT(val, info.localhost, localhost);
+  GET_FROM_JSON_OBJECT(val, info.local_ip, local_ip);
+
+  GET_FROM_JSON_OBJECT(val, info.ip, ip);
+  GET_FROM_JSON_OBJECT(val, info.port, port);
+
+  GET_FROM_JSON_OBJECT(val, info.peer_id, peer_id);
+
+  GET_FROM_JSON_OBJECT(val, info.recv_count, recv_count);
+  GET_FROM_JSON_OBJECT(val, info.recv_idle_time, recv_idle_time);
+
+  GET_FROM_JSON_OBJECT(val, info.send_count, send_count);
+  GET_FROM_JSON_OBJECT(val, info.send_idle_time, send_idle_time);
+
+  GET_FROM_JSON_OBJECT(val, info.state, state);
+
+  GET_FROM_JSON_OBJECT(val, info.live_time, live_time);
+
+  GET_FROM_JSON_OBJECT(val, info.avg_download, avg_download);
+  GET_FROM_JSON_OBJECT(val, info.current_download, current_download);
+
+  GET_FROM_JSON_OBJECT(val, info.avg_upload, avg_upload);
+  GET_FROM_JSON_OBJECT(val, info.current_upload, current_upload);
+}
+
+void toJsonValue(rapidjson::Document& doc, const cryptonote::block_complete_entry& blk, rapidjson::Value& val)
+{
+  val.SetObject();
+
+  INSERT_INTO_JSON_OBJECT(val, doc, block, blk.block);
+  INSERT_INTO_JSON_OBJECT(val, doc, txs, blk.txs);
+}
+
+
+void fromJsonValue(const rapidjson::Value& val, cryptonote::block_complete_entry& blk)
+{
+  if (!val.IsObject())
+  {
+    throw WRONG_TYPE("json object");
+  }
+
+  GET_FROM_JSON_OBJECT(val, blk.block, block);
+  GET_FROM_JSON_OBJECT(val, blk.txs, txs);
+}
+
+void toJsonValue(rapidjson::Document& doc, const cryptonote::rpc::block_with_transactions& blk, rapidjson::Value& val)
+{
+  val.SetObject();
+
+  INSERT_INTO_JSON_OBJECT(val, doc, block, blk.block);
+  INSERT_INTO_JSON_OBJECT(val, doc, transactions, blk.transactions);
+}
+
+
+void fromJsonValue(const rapidjson::Value& val, cryptonote::rpc::block_with_transactions& blk)
+{
+  if (!val.IsObject())
+  {
+    throw WRONG_TYPE("json object");
+  }
+
+  GET_FROM_JSON_OBJECT(val, blk.block, block);
+  GET_FROM_JSON_OBJECT(val, blk.transactions, transactions);
+}
+
+void toJsonValue(rapidjson::Document& doc, const cryptonote::rpc::transaction_info& tx_info, rapidjson::Value& val)
+{
+  val.SetObject();
+
+  INSERT_INTO_JSON_OBJECT(val, doc, height, tx_info.height);
+  INSERT_INTO_JSON_OBJECT(val, doc, in_pool, tx_info.in_pool);
+  INSERT_INTO_JSON_OBJECT(val, doc, transaction, tx_info.transaction);
+}
+
+
+void fromJsonValue(const rapidjson::Value& val, cryptonote::rpc::transaction_info& tx_info)
+{
+  if (!val.IsObject())
+  {
+    throw WRONG_TYPE("json object");
+  }
+
+  GET_FROM_JSON_OBJECT(val, tx_info.height, height);
+  GET_FROM_JSON_OBJECT(val, tx_info.in_pool, in_pool);
+  GET_FROM_JSON_OBJECT(val, tx_info.transaction, transaction);
+}
+
+void toJsonValue(rapidjson::Document& doc, const cryptonote::rpc::output_key_and_amount_index& out, rapidjson::Value& val)
+{
+  val.SetObject();
+
+  INSERT_INTO_JSON_OBJECT(val, doc, amount_index, out.amount_index);
+  INSERT_INTO_JSON_OBJECT(val, doc, key, out.key);
+}
+
+
+void fromJsonValue(const rapidjson::Value& val, cryptonote::rpc::output_key_and_amount_index& out)
+{
+  if (!val.IsObject())
+  {
+    throw WRONG_TYPE("json object");
+  }
+
+  GET_FROM_JSON_OBJECT(val, out.amount_index, amount_index);
+  GET_FROM_JSON_OBJECT(val, out.key, key);
+}
+
+void toJsonValue(rapidjson::Document& doc, const cryptonote::rpc::amount_with_random_outputs& out, rapidjson::Value& val)
+{
+  val.SetObject();
+
+  INSERT_INTO_JSON_OBJECT(val, doc, amount, out.amount);
+  INSERT_INTO_JSON_OBJECT(val, doc, outputs, out.outputs);
+}
+
+
+void fromJsonValue(const rapidjson::Value& val, cryptonote::rpc::amount_with_random_outputs& out)
+{
+  if (!val.IsObject())
+  {
+    throw WRONG_TYPE("json object");
+  }
+
+  GET_FROM_JSON_OBJECT(val, out.amount, amount);
+  GET_FROM_JSON_OBJECT(val, out.outputs, outputs);
+}
+
+void toJsonValue(rapidjson::Document& doc, const cryptonote::rpc::peer& peer, rapidjson::Value& val)
+{
+  val.SetObject();
+
+  INSERT_INTO_JSON_OBJECT(val, doc, id, peer.id);
+  INSERT_INTO_JSON_OBJECT(val, doc, ip, peer.ip);
+  INSERT_INTO_JSON_OBJECT(val, doc, port, peer.port);
+  INSERT_INTO_JSON_OBJECT(val, doc, last_seen, peer.last_seen);
+}
+
+
+void fromJsonValue(const rapidjson::Value& val, cryptonote::rpc::peer& peer)
+{
+  if (!val.IsObject())
+  {
+    throw WRONG_TYPE("json object");
+  }
+
+  GET_FROM_JSON_OBJECT(val, peer.id, id);
+  GET_FROM_JSON_OBJECT(val, peer.ip, ip);
+  GET_FROM_JSON_OBJECT(val, peer.port, port);
+  GET_FROM_JSON_OBJECT(val, peer.last_seen, last_seen);
+}
+
+void toJsonValue(rapidjson::Document& doc, const cryptonote::rpc::tx_in_pool& tx, rapidjson::Value& val)
+{
+  val.SetObject();
+
+  INSERT_INTO_JSON_OBJECT(val, doc, tx, tx.tx);
+  INSERT_INTO_JSON_OBJECT(val, doc, tx_hash, tx.tx_hash);
+  INSERT_INTO_JSON_OBJECT(val, doc, blob_size, tx.blob_size);
+  INSERT_INTO_JSON_OBJECT(val, doc, fee, tx.fee);
+  INSERT_INTO_JSON_OBJECT(val, doc, max_used_block_hash, tx.max_used_block_hash);
+  INSERT_INTO_JSON_OBJECT(val, doc, max_used_block_height, tx.max_used_block_height);
+  INSERT_INTO_JSON_OBJECT(val, doc, kept_by_block, tx.kept_by_block);
+  INSERT_INTO_JSON_OBJECT(val, doc, last_failed_block_hash, tx.last_failed_block_hash);
+  INSERT_INTO_JSON_OBJECT(val, doc, last_failed_block_height, tx.last_failed_block_height);
+  INSERT_INTO_JSON_OBJECT(val, doc, receive_time, tx.receive_time);
+  INSERT_INTO_JSON_OBJECT(val, doc, last_relayed_time, tx.last_relayed_time);
+  INSERT_INTO_JSON_OBJECT(val, doc, relayed, tx.relayed);
+  INSERT_INTO_JSON_OBJECT(val, doc, do_not_relay, tx.do_not_relay);
+}
+
+
+void fromJsonValue(const rapidjson::Value& val, cryptonote::rpc::tx_in_pool& tx)
+{
+  if (!val.IsObject())
+  {
+    throw WRONG_TYPE("json object");
+  }
+
+  GET_FROM_JSON_OBJECT(val, tx.tx, tx);
+  GET_FROM_JSON_OBJECT(val, tx.blob_size, blob_size);
+  GET_FROM_JSON_OBJECT(val, tx.fee, fee);
+  GET_FROM_JSON_OBJECT(val, tx.max_used_block_hash, max_used_block_hash);
+  GET_FROM_JSON_OBJECT(val, tx.max_used_block_height, max_used_block_height);
+  GET_FROM_JSON_OBJECT(val, tx.kept_by_block, kept_by_block);
+  GET_FROM_JSON_OBJECT(val, tx.last_failed_block_hash, last_failed_block_hash);
+  GET_FROM_JSON_OBJECT(val, tx.last_failed_block_height, last_failed_block_height);
+  GET_FROM_JSON_OBJECT(val, tx.receive_time, receive_time);
+  GET_FROM_JSON_OBJECT(val, tx.last_relayed_time, last_relayed_time);
+  GET_FROM_JSON_OBJECT(val, tx.relayed, relayed);
+}
+
+void toJsonValue(rapidjson::Document& doc, const cryptonote::rpc::hard_fork_info& info, rapidjson::Value& val)
+{
+  val.SetObject();
+
+  INSERT_INTO_JSON_OBJECT(val, doc, version, info.version);
+  INSERT_INTO_JSON_OBJECT(val, doc, enabled, info.enabled);
+  INSERT_INTO_JSON_OBJECT(val, doc, window, info.window);
+  INSERT_INTO_JSON_OBJECT(val, doc, votes, info.votes);
+  INSERT_INTO_JSON_OBJECT(val, doc, threshold, info.threshold);
+  INSERT_INTO_JSON_OBJECT(val, doc, voting, info.voting);
+  INSERT_INTO_JSON_OBJECT(val, doc, state, info.state);
+  INSERT_INTO_JSON_OBJECT(val, doc, earliest_height, info.earliest_height);
+}
+
+
+void fromJsonValue(const rapidjson::Value& val, cryptonote::rpc::hard_fork_info& info)
+{
+  if (!val.IsObject())
+  {
+    throw WRONG_TYPE("json object");
+  }
+
+  GET_FROM_JSON_OBJECT(val, info.version, version);
+  GET_FROM_JSON_OBJECT(val, info.enabled, enabled);
+  GET_FROM_JSON_OBJECT(val, info.window, window);
+  GET_FROM_JSON_OBJECT(val, info.votes, votes);
+  GET_FROM_JSON_OBJECT(val, info.threshold, threshold);
+  GET_FROM_JSON_OBJECT(val, info.voting, voting);
+  GET_FROM_JSON_OBJECT(val, info.state, state);
+  GET_FROM_JSON_OBJECT(val, info.earliest_height, earliest_height);
+}
+
+void toJsonValue(rapidjson::Document& doc, const cryptonote::rpc::output_amount_count& out, rapidjson::Value& val)
+{
+  val.SetObject();
+
+  INSERT_INTO_JSON_OBJECT(val, doc, amount, out.amount);
+  INSERT_INTO_JSON_OBJECT(val, doc, total_count, out.total_count);
+  INSERT_INTO_JSON_OBJECT(val, doc, unlocked_count, out.unlocked_count);
+  INSERT_INTO_JSON_OBJECT(val, doc, recent_count, out.recent_count);
+}
+
+
+void fromJsonValue(const rapidjson::Value& val, cryptonote::rpc::output_amount_count& out)
+{
+  if (!val.IsObject())
+  {
+    throw WRONG_TYPE("json object");
+  }
+
+  GET_FROM_JSON_OBJECT(val, out.amount, amount);
+  GET_FROM_JSON_OBJECT(val, out.total_count, total_count);
+  GET_FROM_JSON_OBJECT(val, out.unlocked_count, unlocked_count);
+  GET_FROM_JSON_OBJECT(val, out.recent_count, recent_count);
+}
+
+void toJsonValue(rapidjson::Document& doc, const cryptonote::rpc::output_amount_and_index& out, rapidjson::Value& val)
+{
+  val.SetObject();
+
+  INSERT_INTO_JSON_OBJECT(val, doc, amount, out.amount);
+  INSERT_INTO_JSON_OBJECT(val, doc, index, out.index);
+}
+
+
+void fromJsonValue(const rapidjson::Value& val, cryptonote::rpc::output_amount_and_index& out)
+{
+  if (!val.IsObject())
+  {
+    throw WRONG_TYPE("json object");
+  }
+
+  GET_FROM_JSON_OBJECT(val, out.amount, amount);
+  GET_FROM_JSON_OBJECT(val, out.index, index);
+}
+
+void toJsonValue(rapidjson::Document& doc, const cryptonote::rpc::output_key_mask_unlocked& out, rapidjson::Value& val)
+{
+  val.SetObject();
+
+  INSERT_INTO_JSON_OBJECT(val, doc, key, out.key);
+  INSERT_INTO_JSON_OBJECT(val, doc, mask, out.mask);
+  INSERT_INTO_JSON_OBJECT(val, doc, unlocked, out.unlocked);
+}
+
+void fromJsonValue(const rapidjson::Value& val, cryptonote::rpc::output_key_mask_unlocked& out)
+{
+  if (!val.IsObject())
+  {
+    throw WRONG_TYPE("json object");
+  }
+
+  GET_FROM_JSON_OBJECT(val, out.key, key);
+  GET_FROM_JSON_OBJECT(val, out.mask, mask);
+  GET_FROM_JSON_OBJECT(val, out.unlocked, unlocked);
+}
+
+void toJsonValue(rapidjson::Document& doc, const cryptonote::rpc::error& err, rapidjson::Value& val)
+{
+  val.SetObject();
+
+  INSERT_INTO_JSON_OBJECT(val, doc, code, err.code);
+  INSERT_INTO_JSON_OBJECT(val, doc, error_str, err.error_str);
+  INSERT_INTO_JSON_OBJECT(val, doc, message, err.message);
+}
+
+void fromJsonValue(const rapidjson::Value& val, cryptonote::rpc::error& error)
+{
+  if (!val.IsObject())
+  {
+    throw WRONG_TYPE("json object");
+  }
+
+  GET_FROM_JSON_OBJECT(val, error.code, code);
+  GET_FROM_JSON_OBJECT(val, error.error_str, error_str);
+  GET_FROM_JSON_OBJECT(val, error.message, message);
+}
+
+void toJsonValue(rapidjson::Document& doc, const cryptonote::rpc::BlockHeaderResponse& response, rapidjson::Value& val)
+{
+  val.SetObject();
+
+  INSERT_INTO_JSON_OBJECT(val, doc, major_version, response.major_version);
+  INSERT_INTO_JSON_OBJECT(val, doc, minor_version, response.minor_version);
+  INSERT_INTO_JSON_OBJECT(val, doc, timestamp, response.timestamp);
+  INSERT_INTO_JSON_OBJECT(val, doc, prev_id, response.prev_id);
+  INSERT_INTO_JSON_OBJECT(val, doc, nonce, response.nonce);
+  INSERT_INTO_JSON_OBJECT(val, doc, height, response.height);
+  INSERT_INTO_JSON_OBJECT(val, doc, depth, response.depth);
+  INSERT_INTO_JSON_OBJECT(val, doc, hash, response.hash);
+  INSERT_INTO_JSON_OBJECT(val, doc, difficulty, response.difficulty);
+  INSERT_INTO_JSON_OBJECT(val, doc, reward, response.reward);
+}
+
+void fromJsonValue(const rapidjson::Value& val, cryptonote::rpc::BlockHeaderResponse& response)
+{
+  if (!val.IsObject())
+  {
+    throw WRONG_TYPE("json object");
+  }
+
+  GET_FROM_JSON_OBJECT(val, response.major_version, major_version);
+  GET_FROM_JSON_OBJECT(val, response.minor_version, minor_version);
+  GET_FROM_JSON_OBJECT(val, response.timestamp, timestamp);
+  GET_FROM_JSON_OBJECT(val, response.prev_id, prev_id);
+  GET_FROM_JSON_OBJECT(val, response.nonce, nonce);
+  GET_FROM_JSON_OBJECT(val, response.height, height);
+  GET_FROM_JSON_OBJECT(val, response.depth, depth);
+  GET_FROM_JSON_OBJECT(val, response.hash, hash);
+  GET_FROM_JSON_OBJECT(val, response.difficulty, difficulty);
+  GET_FROM_JSON_OBJECT(val, response.reward, reward);
+}
+
+void toJsonValue(rapidjson::Document& doc, const rct::rctSig& sig, rapidjson::Value& val)
+{
+  val.SetObject();
+
+  INSERT_INTO_JSON_OBJECT(val, doc, type, sig.type);
+  INSERT_INTO_JSON_OBJECT(val, doc, message, sig.message);
+  INSERT_INTO_JSON_OBJECT(val, doc, mixRing, sig.mixRing);
+  INSERT_INTO_JSON_OBJECT(val, doc, pseudoOuts, sig.pseudoOuts);
+  INSERT_INTO_JSON_OBJECT(val, doc, ecdhInfo, sig.ecdhInfo);
+  INSERT_INTO_JSON_OBJECT(val, doc, outPk, sig.outPk);
+  INSERT_INTO_JSON_OBJECT(val, doc, txnFee, sig.txnFee);
+  INSERT_INTO_JSON_OBJECT(val, doc, p, sig.p);
+}
+
+void fromJsonValue(const rapidjson::Value& val, rct::rctSig& sig)
+{
+  if (!val.IsObject())
+  {
+    throw WRONG_TYPE("json object");
+  }
+
+  GET_FROM_JSON_OBJECT(val, sig.type, type);
+  GET_FROM_JSON_OBJECT(val, sig.message, message);
+  GET_FROM_JSON_OBJECT(val, sig.mixRing, mixRing);
+  GET_FROM_JSON_OBJECT(val, sig.pseudoOuts, pseudoOuts);
+  GET_FROM_JSON_OBJECT(val, sig.ecdhInfo, ecdhInfo);
+  GET_FROM_JSON_OBJECT(val, sig.outPk, outPk);
+  GET_FROM_JSON_OBJECT(val, sig.txnFee, txnFee);
+  GET_FROM_JSON_OBJECT(val, sig.p, p);
+}
+
+void toJsonValue(rapidjson::Document& doc, const rct::ctkey& key, rapidjson::Value& val)
+{
+  val.SetObject();
+
+  INSERT_INTO_JSON_OBJECT(val, doc, dest, key.dest);
+  INSERT_INTO_JSON_OBJECT(val, doc, mask, key.mask);
+}
+
+void fromJsonValue(const rapidjson::Value& val, rct::ctkey& key)
+{
+  if (!val.IsObject())
+  {
+    throw WRONG_TYPE("json object");
+  }
+  GET_FROM_JSON_OBJECT(val, key.dest, dest);
+  GET_FROM_JSON_OBJECT(val, key.mask, mask);
+}
+
+void toJsonValue(rapidjson::Document& doc, const rct::ecdhTuple& tuple, rapidjson::Value& val)
+{
+  val.SetObject();
+
+  INSERT_INTO_JSON_OBJECT(val, doc, mask, tuple.mask);
+  INSERT_INTO_JSON_OBJECT(val, doc, amount, tuple.amount);
+}
+
+void fromJsonValue(const rapidjson::Value& val, rct::ecdhTuple& tuple)
+{
+  if (!val.IsObject())
+  {
+    throw WRONG_TYPE("json object");
+  }
+
+  GET_FROM_JSON_OBJECT(val, tuple.mask, mask);
+  GET_FROM_JSON_OBJECT(val, tuple.amount, amount);
+}
+
+void toJsonValue(rapidjson::Document& doc, const rct::rctSigPrunable& sig, rapidjson::Value& val)
+{
+  val.SetObject();
+
+  INSERT_INTO_JSON_OBJECT(val, doc, rangeSigs, sig.rangeSigs);
+  INSERT_INTO_JSON_OBJECT(val, doc, MGs, sig.MGs);
+}
+
+void fromJsonValue(const rapidjson::Value& val, rct::rctSigPrunable& sig)
+{
+  if (!val.IsObject())
+  {
+    throw WRONG_TYPE("json object");
+  }
+
+  GET_FROM_JSON_OBJECT(val, sig.rangeSigs, rangeSigs);
+  GET_FROM_JSON_OBJECT(val, sig.MGs, MGs);
+}
+
+void toJsonValue(rapidjson::Document& doc, const rct::rangeSig& sig, rapidjson::Value& val)
+{
+  val.SetObject();
+
+  INSERT_INTO_JSON_OBJECT(val, doc, asig, sig.asig);
+
+  std::vector<rct::key> keyVector(sig.Ci, std::end(sig.Ci));
+  INSERT_INTO_JSON_OBJECT(val, doc, Ci, keyVector);
+}
+
+void fromJsonValue(const rapidjson::Value& val, rct::rangeSig& sig)
+{
+  if (!val.IsObject())
+  {
+    throw WRONG_TYPE("json object");
+  }
+
+  GET_FROM_JSON_OBJECT(val, sig.asig, asig);
+
+  std::vector<rct::key> keyVector;
+  cryptonote::json::fromJsonValue(val["Ci"], keyVector);
+  if (!(keyVector.size() == 64))
+  {
+    throw WRONG_TYPE("key64 (rct::key[64])");
+  }
+  for (size_t i=0; i < 64; i++)
+  {
+    sig.Ci[i] = keyVector[i];
+  }
+}
+
+void toJsonValue(rapidjson::Document& doc, const rct::boroSig& sig, rapidjson::Value& val)
+{
+  val.SetObject();
+
+  std::vector<rct::key> keyVector(sig.s0, std::end(sig.s0));
+  INSERT_INTO_JSON_OBJECT(val, doc, s0, sig.s0);
+
+  keyVector.assign(sig.s1, std::end(sig.s1));
+  INSERT_INTO_JSON_OBJECT(val, doc, s1, sig.s1);
+
+  INSERT_INTO_JSON_OBJECT(val, doc, ee, sig.ee);
+}
+
+void fromJsonValue(const rapidjson::Value& val, rct::boroSig& sig)
+{
+  if (!val.IsObject())
+  {
+    throw WRONG_TYPE("json object");
+  }
+
+  OBJECT_HAS_MEMBER_OR_THROW(val, "s0")
+  std::vector<rct::key> keyVector;
+  cryptonote::json::fromJsonValue(val["s0"], keyVector);
+  if (!(keyVector.size() == 64))
+  {
+    throw WRONG_TYPE("key64 (rct::key[64])");
+  }
+  for (size_t i=0; i < 64; i++)
+  {
+    sig.s0[i] = keyVector[i];
+  }
+
+  OBJECT_HAS_MEMBER_OR_THROW(val, "s1")
+  keyVector.clear();
+  cryptonote::json::fromJsonValue(val["s1"], keyVector);
+  if (!(keyVector.size() == 64))
+  {
+    throw WRONG_TYPE("key64 (rct::key[64])");
+  }
+  for (size_t i=0; i < 64; i++)
+  {
+    sig.s1[i] = keyVector[i];
+  }
+
+  GET_FROM_JSON_OBJECT(val, sig.ee, ee);
+}
+
+void toJsonValue(rapidjson::Document& doc, const rct::mgSig& sig, rapidjson::Value& val)
+{
+  val.SetObject();
+
+  INSERT_INTO_JSON_OBJECT(val, doc, ss, sig.ss);
+  INSERT_INTO_JSON_OBJECT(val, doc, cc, sig.cc);
+}
+
+void fromJsonValue(const rapidjson::Value& val, rct::mgSig& sig)
+{
+  if (!val.IsObject())
+  {
+    throw WRONG_TYPE("key64 (rct::key[64])");
+  }
+
+  GET_FROM_JSON_OBJECT(val, sig.ss, ss);
+  GET_FROM_JSON_OBJECT(val, sig.cc, cc);
+}
+
+void toJsonValue(rapidjson::Document& doc, const cryptonote::rpc::DaemonInfo& info, rapidjson::Value& val)
+{
+  val.SetObject();
+
+  INSERT_INTO_JSON_OBJECT(val, doc, height, info.height);
+  INSERT_INTO_JSON_OBJECT(val, doc, target_height, info.target_height);
+  INSERT_INTO_JSON_OBJECT(val, doc, difficulty, info.difficulty);
+  INSERT_INTO_JSON_OBJECT(val, doc, target, info.target);
+  INSERT_INTO_JSON_OBJECT(val, doc, tx_count, info.tx_count);
+  INSERT_INTO_JSON_OBJECT(val, doc, tx_pool_size, info.tx_pool_size);
+  INSERT_INTO_JSON_OBJECT(val, doc, alt_blocks_count, info.alt_blocks_count);
+  INSERT_INTO_JSON_OBJECT(val, doc, outgoing_connections_count, info.outgoing_connections_count);
+  INSERT_INTO_JSON_OBJECT(val, doc, incoming_connections_count, info.incoming_connections_count);
+  INSERT_INTO_JSON_OBJECT(val, doc, white_peerlist_size, info.white_peerlist_size);
+  INSERT_INTO_JSON_OBJECT(val, doc, grey_peerlist_size, info.grey_peerlist_size);
+  INSERT_INTO_JSON_OBJECT(val, doc, testnet, info.testnet);
+  INSERT_INTO_JSON_OBJECT(val, doc, top_block_hash, info.top_block_hash);
+  INSERT_INTO_JSON_OBJECT(val, doc, cumulative_difficulty, info.cumulative_difficulty);
+  INSERT_INTO_JSON_OBJECT(val, doc, block_size_limit, info.block_size_limit);
+  INSERT_INTO_JSON_OBJECT(val, doc, start_time, info.start_time);
+}
+
+void fromJsonValue(const rapidjson::Value& val, cryptonote::rpc::DaemonInfo& info)
+{
+  if (!val.IsObject())
+  {
+    throw WRONG_TYPE("json object");
+  }
+
+  GET_FROM_JSON_OBJECT(val, info.height, height);
+  GET_FROM_JSON_OBJECT(val, info.target_height, target_height);
+  GET_FROM_JSON_OBJECT(val, info.difficulty, difficulty);
+  GET_FROM_JSON_OBJECT(val, info.target, target);
+  GET_FROM_JSON_OBJECT(val, info.tx_count, tx_count);
+  GET_FROM_JSON_OBJECT(val, info.tx_pool_size, tx_pool_size);
+  GET_FROM_JSON_OBJECT(val, info.alt_blocks_count, alt_blocks_count);
+  GET_FROM_JSON_OBJECT(val, info.outgoing_connections_count, outgoing_connections_count);
+  GET_FROM_JSON_OBJECT(val, info.incoming_connections_count, incoming_connections_count);
+  GET_FROM_JSON_OBJECT(val, info.white_peerlist_size, white_peerlist_size);
+  GET_FROM_JSON_OBJECT(val, info.grey_peerlist_size, grey_peerlist_size);
+  GET_FROM_JSON_OBJECT(val, info.testnet, testnet);
+  GET_FROM_JSON_OBJECT(val, info.top_block_hash, top_block_hash);
+  GET_FROM_JSON_OBJECT(val, info.cumulative_difficulty, cumulative_difficulty);
+  GET_FROM_JSON_OBJECT(val, info.block_size_limit, block_size_limit);
+  GET_FROM_JSON_OBJECT(val, info.start_time, start_time);
+}
+
+}  // namespace json
+
+}  // namespace cryptonote
diff --git a/src/serialization/json_object.h b/src/serialization/json_object.h
new file mode 100644
index 000000000..7b9519c48
--- /dev/null
+++ b/src/serialization/json_object.h
@@ -0,0 +1,371 @@
+// Copyright (c) 2016-2017, The Monero Project
+// 
+// All rights reserved.
+// 
+// Redistribution and use in source and binary forms, with or without modification, are
+// permitted provided that the following conditions are met:
+// 
+// 1. Redistributions of source code must retain the above copyright notice, this list of
+//    conditions and the following disclaimer.
+// 
+// 2. Redistributions in binary form must reproduce the above copyright notice, this list
+//    of conditions and the following disclaimer in the documentation and/or other
+//    materials provided with the distribution.
+// 
+// 3. Neither the name of the copyright holder nor the names of its contributors may be
+//    used to endorse or promote products derived from this software without specific
+//    prior written permission.
+// 
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
+// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
+// THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+// STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
+// THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+#pragma once
+
+#include "rapidjson/document.h"
+#include "cryptonote_basic/cryptonote_basic.h"
+#include "rpc/message_data_structs.h"
+#include "cryptonote_protocol/cryptonote_protocol_defs.h"
+#include "common/sfinae_helpers.h"
+
+#define OBJECT_HAS_MEMBER_OR_THROW(val, key) \
+  do \
+  { \
+    if (!val.HasMember(key)) \
+    { \
+      throw cryptonote::json::MISSING_KEY(key); \
+    } \
+  } while (0);
+
+#define INSERT_INTO_JSON_OBJECT(jsonVal, doc, key, source) \
+    rapidjson::Value key##Val; \
+    cryptonote::json::toJsonValue(doc, source, key##Val); \
+    jsonVal.AddMember(#key, key##Val, doc.GetAllocator());
+
+#define GET_FROM_JSON_OBJECT(source, dst, key) \
+    OBJECT_HAS_MEMBER_OR_THROW(source, #key) \
+    decltype(dst) dstVal##key; \
+    cryptonote::json::fromJsonValue(source[#key], dstVal##key); \
+    dst = dstVal##key;
+
+namespace cryptonote
+{
+
+namespace json
+{
+
+struct JSON_ERROR : public std::exception
+{
+  protected:
+    JSON_ERROR() { }
+    std::string m;
+
+  public:
+    virtual ~JSON_ERROR() { }
+
+    const char* what() const throw()
+    {
+      return m.c_str();
+    }
+};
+
+struct MISSING_KEY : public JSON_ERROR
+{
+  MISSING_KEY(const char* key)
+  {
+    m = std::string("Key \"") + key + "\" missing from object.";
+  }
+};
+
+struct WRONG_TYPE : public JSON_ERROR
+{
+  WRONG_TYPE(const char* type)
+  {
+    m = std::string("Json value has incorrect type, expected: ") + type;
+  }
+};
+
+struct BAD_INPUT : public JSON_ERROR
+{
+  BAD_INPUT()
+  {
+    m = "An item failed to convert from json object to native object";
+  }
+};
+
+struct PARSE_FAIL : public JSON_ERROR
+{
+  PARSE_FAIL()
+  {
+    m = "Failed to parse the json request";
+  }
+};
+
+template<typename Type>
+inline constexpr bool is_to_hex()
+{
+  return std::is_pod<Type>() && !std::is_integral<Type>();
+}
+
+
+// POD to json value
+template <class Type>
+typename std::enable_if<is_to_hex<Type>()>::type toJsonValue(rapidjson::Document& doc, const Type& pod, rapidjson::Value& value)
+{
+  value = rapidjson::Value(epee::string_tools::pod_to_hex(pod).c_str(), doc.GetAllocator());
+}
+
+template <class Type>
+typename std::enable_if<is_to_hex<Type>()>::type fromJsonValue(const rapidjson::Value& val, Type& t)
+{
+  if (!val.IsString())
+  {
+    throw WRONG_TYPE("string");
+  }
+
+  //TODO: handle failure to convert hex string to POD type
+  bool success = epee::string_tools::hex_to_pod(val.GetString(), t);
+
+  if (!success)
+  {
+    throw BAD_INPUT();
+  }
+}
+
+void toJsonValue(rapidjson::Document& doc, const std::string& i, rapidjson::Value& val);
+void fromJsonValue(const rapidjson::Value& val, std::string& str);
+
+void toJsonValue(rapidjson::Document& doc, bool i, rapidjson::Value& val);
+void fromJsonValue(const rapidjson::Value& val, bool& b);
+
+// integers overloads for toJsonValue are not needed for standard promotions
+
+void fromJsonValue(const rapidjson::Value& val, unsigned char& i);
+
+void fromJsonValue(const rapidjson::Value& val, signed char& i);
+
+void fromJsonValue(const rapidjson::Value& val, char& i);
+
+void fromJsonValue(const rapidjson::Value& val, unsigned short& i);
+
+void fromJsonValue(const rapidjson::Value& val, short& i);
+
+void toJsonValue(rapidjson::Document& doc, const unsigned i, rapidjson::Value& val);
+void fromJsonValue(const rapidjson::Value& val, unsigned& i);
+
+void toJsonValue(rapidjson::Document& doc, const int, rapidjson::Value& val);
+void fromJsonValue(const rapidjson::Value& val, int& i);
+
+
+void toJsonValue(rapidjson::Document& doc, const unsigned long long i, rapidjson::Value& val);
+void fromJsonValue(const rapidjson::Value& val, unsigned long long& i);
+
+void toJsonValue(rapidjson::Document& doc, const long long i, rapidjson::Value& val);
+void fromJsonValue(const rapidjson::Value& val, long long& i);
+
+inline void toJsonValue(rapidjson::Document& doc, const unsigned long i, rapidjson::Value& val) {
+    toJsonValue(doc, static_cast<unsigned long long>(i), val);
+}
+void fromJsonValue(const rapidjson::Value& val, unsigned long& i);
+
+inline void toJsonValue(rapidjson::Document& doc, const long i, rapidjson::Value& val) {
+    toJsonValue(doc, static_cast<long long>(i), val);
+}
+void fromJsonValue(const rapidjson::Value& val, long& i);
+
+// end integers
+
+void toJsonValue(rapidjson::Document& doc, const cryptonote::transaction& tx, rapidjson::Value& val);
+void fromJsonValue(const rapidjson::Value& val, cryptonote::transaction& tx);
+
+void toJsonValue(rapidjson::Document& doc, const cryptonote::block& b, rapidjson::Value& val);
+void fromJsonValue(const rapidjson::Value& val, cryptonote::block& b);
+
+void toJsonValue(rapidjson::Document& doc, const cryptonote::txin_v& txin, rapidjson::Value& val);
+void fromJsonValue(const rapidjson::Value& val, cryptonote::txin_v& txin);
+
+void toJsonValue(rapidjson::Document& doc, const cryptonote::txin_gen& txin, rapidjson::Value& val);
+void fromJsonValue(const rapidjson::Value& val, cryptonote::txin_gen& txin);
+
+void toJsonValue(rapidjson::Document& doc, const cryptonote::txin_to_script& txin, rapidjson::Value& val);
+void fromJsonValue(const rapidjson::Value& val, cryptonote::txin_to_script& txin);
+
+void toJsonValue(rapidjson::Document& doc, const cryptonote::txin_to_scripthash& txin, rapidjson::Value& val);
+void fromJsonValue(const rapidjson::Value& val, cryptonote::txin_to_scripthash& txin);
+
+void toJsonValue(rapidjson::Document& doc, const cryptonote::txin_to_key& txin, rapidjson::Value& val);
+void fromJsonValue(const rapidjson::Value& val, cryptonote::txin_to_key& txin);
+
+void toJsonValue(rapidjson::Document& doc, const cryptonote::txout_target_v& txout, rapidjson::Value& val);
+void fromJsonValue(const rapidjson::Value& val, cryptonote::txout_target_v& txout);
+
+void toJsonValue(rapidjson::Document& doc, const cryptonote::txout_to_script& txout, rapidjson::Value& val);
+void fromJsonValue(const rapidjson::Value& val, cryptonote::txout_to_script& txout);
+
+void toJsonValue(rapidjson::Document& doc, const cryptonote::txout_to_scripthash& txout, rapidjson::Value& val);
+void fromJsonValue(const rapidjson::Value& val, cryptonote::txout_to_scripthash& txout);
+
+void toJsonValue(rapidjson::Document& doc, const cryptonote::txout_to_key& txout, rapidjson::Value& val);
+void fromJsonValue(const rapidjson::Value& val, cryptonote::txout_to_key& txout);
+
+void toJsonValue(rapidjson::Document& doc, const cryptonote::tx_out& txout, rapidjson::Value& val);
+void fromJsonValue(const rapidjson::Value& val, cryptonote::tx_out& txout);
+
+void toJsonValue(rapidjson::Document& doc, const cryptonote::connection_info& info, rapidjson::Value& val);
+void fromJsonValue(const rapidjson::Value& val, cryptonote::connection_info& info);
+
+void toJsonValue(rapidjson::Document& doc, const cryptonote::block_complete_entry& blk, rapidjson::Value& val);
+void fromJsonValue(const rapidjson::Value& val, cryptonote::block_complete_entry& blk);
+
+void toJsonValue(rapidjson::Document& doc, const cryptonote::rpc::block_with_transactions& blk, rapidjson::Value& val);
+void fromJsonValue(const rapidjson::Value& val, cryptonote::rpc::block_with_transactions& blk);
+
+void toJsonValue(rapidjson::Document& doc, const cryptonote::rpc::transaction_info& tx_info, rapidjson::Value& val);
+void fromJsonValue(const rapidjson::Value& val, cryptonote::rpc::transaction_info& tx_info);
+
+void toJsonValue(rapidjson::Document& doc, const cryptonote::rpc::output_key_and_amount_index& out, rapidjson::Value& val);
+void fromJsonValue(const rapidjson::Value& val, cryptonote::rpc::output_key_and_amount_index& out);
+
+void toJsonValue(rapidjson::Document& doc, const cryptonote::rpc::amount_with_random_outputs& out, rapidjson::Value& val);
+void fromJsonValue(const rapidjson::Value& val, cryptonote::rpc::amount_with_random_outputs& out);
+
+void toJsonValue(rapidjson::Document& doc, const cryptonote::rpc::peer& peer, rapidjson::Value& val);
+void fromJsonValue(const rapidjson::Value& val, cryptonote::rpc::peer& peer);
+
+void toJsonValue(rapidjson::Document& doc, const cryptonote::rpc::tx_in_pool& tx, rapidjson::Value& val);
+void fromJsonValue(const rapidjson::Value& val, cryptonote::rpc::tx_in_pool& tx);
+
+void toJsonValue(rapidjson::Document& doc, const cryptonote::rpc::hard_fork_info& info, rapidjson::Value& val);
+void fromJsonValue(const rapidjson::Value& val, cryptonote::rpc::hard_fork_info& info);
+
+void toJsonValue(rapidjson::Document& doc, const cryptonote::rpc::output_amount_count& out, rapidjson::Value& val);
+void fromJsonValue(const rapidjson::Value& val, cryptonote::rpc::output_amount_count& out);
+
+void toJsonValue(rapidjson::Document& doc, const cryptonote::rpc::output_amount_and_index& out, rapidjson::Value& val);
+void fromJsonValue(const rapidjson::Value& val, cryptonote::rpc::output_amount_and_index& out);
+
+void toJsonValue(rapidjson::Document& doc, const cryptonote::rpc::output_key_mask_unlocked& out, rapidjson::Value& val);
+void fromJsonValue(const rapidjson::Value& val, cryptonote::rpc::output_key_mask_unlocked& out);
+
+void toJsonValue(rapidjson::Document& doc, const cryptonote::rpc::error& err, rapidjson::Value& val);
+void fromJsonValue(const rapidjson::Value& val, cryptonote::rpc::error& error);
+
+void toJsonValue(rapidjson::Document& doc, const cryptonote::rpc::BlockHeaderResponse& response, rapidjson::Value& val);
+void fromJsonValue(const rapidjson::Value& val, cryptonote::rpc::BlockHeaderResponse& response);
+
+void toJsonValue(rapidjson::Document& doc, const rct::rctSig& i, rapidjson::Value& val);
+void fromJsonValue(const rapidjson::Value& i, rct::rctSig& sig);
+
+void toJsonValue(rapidjson::Document& doc, const rct::ctkey& key, rapidjson::Value& val);
+void fromJsonValue(const rapidjson::Value& val, rct::ctkey& key);
+
+void toJsonValue(rapidjson::Document& doc, const rct::ecdhTuple& tuple, rapidjson::Value& val);
+void fromJsonValue(const rapidjson::Value& val, rct::ecdhTuple& tuple);
+
+void toJsonValue(rapidjson::Document& doc, const rct::rctSigPrunable& sig, rapidjson::Value& val);
+void fromJsonValue(const rapidjson::Value& val, rct::rctSigPrunable& sig);
+
+void toJsonValue(rapidjson::Document& doc, const rct::rangeSig& sig, rapidjson::Value& val);
+void fromJsonValue(const rapidjson::Value& val, rct::rangeSig& sig);
+
+void toJsonValue(rapidjson::Document& doc, const rct::boroSig& sig, rapidjson::Value& val);
+void fromJsonValue(const rapidjson::Value& val, rct::boroSig& sig);
+
+void toJsonValue(rapidjson::Document& doc, const rct::mgSig& sig, rapidjson::Value& val);
+void fromJsonValue(const rapidjson::Value& val, rct::mgSig& sig);
+
+void toJsonValue(rapidjson::Document& doc, const cryptonote::rpc::DaemonInfo& info, rapidjson::Value& val);
+void fromJsonValue(const rapidjson::Value& val, cryptonote::rpc::DaemonInfo& info);
+
+template <typename Map>
+typename std::enable_if<sfinae::is_map_like<Map>::value, void>::type toJsonValue(rapidjson::Document& doc, const Map& map, rapidjson::Value& val);
+
+template <typename Map>
+typename std::enable_if<sfinae::is_map_like<Map>::value, void>::type fromJsonValue(const rapidjson::Value& val, Map& map);
+
+template <typename Vec>
+typename std::enable_if<sfinae::is_vector_like<Vec>::value, void>::type toJsonValue(rapidjson::Document& doc, const Vec &vec, rapidjson::Value& val);
+
+template <typename Vec>
+typename std::enable_if<sfinae::is_vector_like<Vec>::value, void>::type fromJsonValue(const rapidjson::Value& val, Vec& vec);
+
+
+// ideally would like to have the below functions in the .cpp file, but
+// unfortunately because of how templates work they have to be here.
+
+template <typename Map>
+typename std::enable_if<sfinae::is_map_like<Map>::value, void>::type toJsonValue(rapidjson::Document& doc, const Map& map, rapidjson::Value& val)
+{
+  val.SetObject();
+
+  auto& al = doc.GetAllocator();
+
+  for (const auto& i : map)
+  {
+    rapidjson::Value k;
+    rapidjson::Value m;
+    toJsonValue(doc, i.first, k);
+    toJsonValue(doc, i.second, m);
+    val.AddMember(k, m, al);
+  }
+}
+
+template <typename Map>
+typename std::enable_if<sfinae::is_map_like<Map>::value, void>::type fromJsonValue(const rapidjson::Value& val, Map& map)
+{
+  if (!val.IsObject())
+  {
+    throw WRONG_TYPE("json object");
+  }
+
+  auto itr = val.MemberBegin();
+
+  while (itr != val.MemberEnd())
+  {
+    typename Map::key_type k;
+    typename Map::mapped_type m;
+    fromJsonValue(itr->name, k);
+    fromJsonValue(itr->value, m);
+    map.emplace(k, m);
+    ++itr;
+  }
+}
+
+template <typename Vec>
+typename std::enable_if<sfinae::is_vector_like<Vec>::value, void>::type toJsonValue(rapidjson::Document& doc, const Vec &vec, rapidjson::Value& val)
+{
+  val.SetArray();
+
+  for (const auto& t : vec)
+  {
+    rapidjson::Value v;
+    toJsonValue(doc, t, v);
+    val.PushBack(v, doc.GetAllocator());
+  }
+}
+
+template <typename Vec>
+typename std::enable_if<sfinae::is_vector_like<Vec>::value, void>::type fromJsonValue(const rapidjson::Value& val, Vec& vec)
+{
+  if (!val.IsArray())
+  {
+    throw WRONG_TYPE("json array");
+  }
+
+  for (rapidjson::SizeType i=0; i < val.Size(); i++)
+  {
+    typename Vec::value_type v;
+    fromJsonValue(val[i], v);
+    vec.push_back(v);
+  }
+}
+
+}  // namespace json
+
+}  // namespace cryptonote