createrawtransaction call

libraries/plugins/peerplays_sidechain/bitcoin_utils.cpp

@@ -89,4 +89,9 @@ std::string p2sh_address_from_redeem_script(const bytes& script, bitcoin_network
    return fc::to_base58(reinterpret_cast<const char*>(&data[0]), data.size());
 }
 
+bytes sign_raw_transaction(const bytes& unsigned_tx, const fc::ecc::private_key& priv_key)
+{
+   return bytes();
+}
+
 }}

libraries/plugins/peerplays_sidechain/include/graphene/peerplays_sidechain/bitcoin_utils.hpp

@@ -11,5 +11,6 @@ enum bitcoin_network {
 
 bytes generate_redeem_script(fc::flat_map<fc::ecc::public_key, int> key_data);
 std::string p2sh_address_from_redeem_script(const bytes& script, bitcoin_network network = mainnet);
+bytes sign_raw_transaction(const bytes& unsigned_tx, const fc::ecc::private_key& priv_key);
 
 }}

libraries/plugins/peerplays_sidechain/include/graphene/peerplays_sidechain/sidechain_net_handler_bitcoin.hpp

@@ -31,6 +31,7 @@ public:
    bool connection_is_not_defined() const;
    void import_address( const std::string& address_or_script);
    std::vector<btc_txout> list_unspent();
+   std::string prepare_tx(const std::vector<btc_txout>& ins, const fc::flat_map<std::string, double> outs);
 
 private:
 

libraries/plugins/peerplays_sidechain/sidechain_net_handler_bitcoin.cpp

@@ -238,6 +238,55 @@ std::vector<btc_txout> bitcoin_rpc_client::list_unspent()
    return result;
 }
 
+std::string bitcoin_rpc_client::prepare_tx(const std::vector<btc_txout> &ins, const fc::flat_map<std::string, double> outs)
+{
+   std::string body("{\"jsonrpc\": \"1.0\", \"id\":\"pp_plugin\", \"method\": \"createrawtransaction\", \"params\": [");
+   body += "[";
+   bool first = true;
+   for(const auto& entry: ins)
+   {
+      if(!first)
+         body += ",";
+      body += "{\"txid\":\"" + entry.txid_ + "\",\"vout\":\"" + fc::to_string(entry.out_num_) + "\"}";
+      first = false;
+   }
+   body += "]";
+   first = true;
+   body += "{";
+   for(const auto& entry: outs)
+   {
+      if(!first)
+         body += ",";
+      body += "\"" + entry.first + "\":\"" + fc::to_string(entry.second) + "\"";
+      first = false;
+   }
+   body += "}";
+   body += std::string("] }");
+
+   const auto reply = send_post_request( body );
+
+   if( reply.body.empty() )
+   {
+      wlog("Failed to create raw transaction: [${body}]", ("body", body));
+      return std::string();
+   }
+
+   std::string reply_str( reply.body.begin(), reply.body.end() );
+
+   std::stringstream ss(reply_str);
+   boost::property_tree::ptree json;
+   boost::property_tree::read_json( ss, json );
+
+   if( reply.status == 200 ) {
+      idump((reply_str));
+      if( json.count( "result" ) )
+         return json.get_child("result").get_value<std::string>();
+   } else if( json.count( "error" ) && !json.get_child( "error" ).empty() ) {
+      wlog( "Failed to create raw transaction: [${body}]! Reply: ${msg}", ("body", body)("msg", reply_str) );
+   }
+   return std::string();
+}
+
 fc::http::reply bitcoin_rpc_client::send_post_request( std::string body )
 {
    fc::http::connection conn;