diff --git a/src/rpc/blockchain.cpp b/src/rpc/blockchain.cpp index 368654bfa6b8a..dc1ebc0ef4130 100644 --- a/src/rpc/blockchain.cpp +++ b/src/rpc/blockchain.cpp @@ -1413,10 +1413,76 @@ UniValue reconsiderblock(const JSONRPCRequest& request) return NullUniValue; } +UniValue getchaintxstats(const JSONRPCRequest& request) +{ + if (request.fHelp || request.params.size() > 2) + throw runtime_error( + "getchaintxstats ( nblocks blockhash )\n" + "\nCompute statistics about the total number and rate of transactions in the chain.\n" + "\nArguments:\n" + "1. nblocks (numeric, optional) Size of the window in number of blocks (default: one month).\n" + "2. \"blockhash\" (string, optional) The hash of the block that ends the window.\n" + "\nResult:\n" + "{\n" + " \"time\": xxxxx, (numeric) The timestamp for the statistics in UNIX format.\n" + " \"txcount\": xxxxx, (numeric) The total number of transactions in the chain up to that point.\n" + " \"txrate\": x.xx, (numeric) The average rate of transactions per second in the window.\n" + "}\n" + "\nExamples:\n" + + HelpExampleCli("gettxratestats", "") + + HelpExampleRpc("gettxratestats", "2016") + ); + + CBlockIndex* pindex; + int blockcount = 30 * 24 * 60 * 60 / Params().GetConsensus().nPowTargetSpacing; // By default: 1 month + + if (request.params.size() > 0 && !request.params[0].isNull()) { + blockcount = request.params[0].get_int(); + } + + bool havehash = request.params.size() > 1 && !request.params[1].isNull(); + uint256 hash; + if (havehash) { + hash = uint256S(request.params[1].get_str()); + } + + { + LOCK(cs_main); + if (havehash) { + auto it = mapBlockIndex.find(hash); + if (it == mapBlockIndex.end()) { + throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY, "Block not found"); + } + pindex = it->second; + if (!chainActive.Contains(pindex)) { + throw JSONRPCError(RPC_INVALID_PARAMETER, "Block is not in main chain"); + } + } else { + pindex = chainActive.Tip(); + } + } + + if (blockcount < 1 || blockcount >= pindex->nHeight) { + throw JSONRPCError(RPC_INVALID_PARAMETER, "Invalid block count: should be between 1 and the block's height"); + } + + CBlockIndex* pindexPast = pindex->GetAncestor(pindex->nHeight - blockcount); + int nTimeDiff = pindex->GetMedianTimePast() - pindexPast->GetMedianTimePast(); + int nTxDiff = pindex->nChainTx - pindexPast->nChainTx; + + UniValue ret(UniValue::VOBJ); + ret.push_back(Pair("time", (int64_t)pindex->nTime)); + ret.push_back(Pair("txcount", (int64_t)pindex->nChainTx)); + ret.push_back(Pair("txrate", ((double)nTxDiff) / nTimeDiff)); + + return ret; +} + static const CRPCCommand commands[] = { // category name actor (function) okSafe argNames // --------------------- ------------------------ ----------------------- ------ ---------- { "blockchain", "getblockchaininfo", &getblockchaininfo, true, {} }, + { "blockchain", "getchaintxstats", &getchaintxstats, true, {"nblocks", "blockhash"} }, { "blockchain", "getbestblockhash", &getbestblockhash, true, {} }, { "blockchain", "getblockcount", &getblockcount, true, {} }, { "blockchain", "getblock", &getblock, true, {"blockhash","verbose"} }, diff --git a/src/rpc/client.cpp b/src/rpc/client.cpp index 5bdd84e555116..68e43dfadbe23 100644 --- a/src/rpc/client.cpp +++ b/src/rpc/client.cpp @@ -81,6 +81,7 @@ static const CRPCConvertParam vRPCConvertParams[] = { "listunspent", 2, "addresses" }, { "getblock", 1, "verbose" }, { "getblockheader", 1, "verbose" }, + { "getchaintxstats", 0, "nblocks" }, { "gettransaction", 1, "include_watchonly" }, { "getrawtransaction", 1, "verbose" }, { "createrawtransaction", 0, "transactions" },