Return size in bytes of a tx from getrawtransaction

src/rpc/rawtransaction.cpp

@@ -367,6 +367,7 @@ UniValue getrawtransaction(const UniValue& params, bool fHelp, const CPubKey& my
             "\nResult (if verbose > 0):\n"
             "{\n"
             "  \"hex\" : \"data\",       (string) The serialized, hex-encoded data for 'txid'\n"
+            "  \"size\" : n,             (numeric) The length in bytes\n"
             "  \"txid\" : \"id\",        (string) The transaction id (same as provided)\n"
             "  \"version\" : n,          (numeric) The version\n"
             "  \"locktime\" : ttt,       (numeric) The lock time\n"
@@ -453,6 +454,7 @@ UniValue getrawtransaction(const UniValue& params, bool fHelp, const CPubKey& my
 
     UniValue result(UniValue::VOBJ);
     result.push_back(Pair("hex", strHex));
+    result.push_back(Pair("size", GetSerializeSize(tx, SER_NETWORK, PROTOCOL_VERSION) ));
     TxToJSONExpanded(tx, hashBlock, result, nHeight, nConfirmations, nBlockTime);
     return result;
 }