diff options
| -rw-r--r-- | src/rest.cpp | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/src/rest.cpp b/src/rest.cpp index 1850c0b7a6..3c12151c7d 100644 --- a/src/rest.cpp +++ b/src/rest.cpp @@ -577,6 +577,52 @@ static bool rest_getutxos(HTTPRequest* req, const std::string& strURIPart) } } +static bool rest_blockhash_by_height(HTTPRequest* req, + const std::string& str_uri_part) +{ + if (!CheckWarmup(req)) return false; + std::string height_str; + const RetFormat rf = ParseDataFormat(height_str, str_uri_part); + + int32_t blockheight; + if (!ParseInt32(height_str, &blockheight) || blockheight < 0) { + return RESTERR(req, HTTP_BAD_REQUEST, "Invalid height: " + SanitizeString(height_str)); + } + + CBlockIndex* pblockindex = nullptr; + { + LOCK(cs_main); + if (blockheight > chainActive.Height()) { + return RESTERR(req, HTTP_NOT_FOUND, "Block height out of range"); + } + pblockindex = chainActive[blockheight]; + } + switch (rf) { + case RetFormat::BINARY: { + CDataStream ss_blockhash(SER_NETWORK, PROTOCOL_VERSION); + ss_blockhash << pblockindex->GetBlockHash(); + req->WriteHeader("Content-Type", "application/octet-stream"); + req->WriteReply(HTTP_OK, ss_blockhash.str()); + return true; + } + case RetFormat::HEX: { + req->WriteHeader("Content-Type", "text/plain"); + req->WriteReply(HTTP_OK, pblockindex->GetBlockHash().GetHex() + "\n"); + return true; + } + case RetFormat::JSON: { + req->WriteHeader("Content-Type", "application/json"); + UniValue resp = UniValue(UniValue::VOBJ); + resp.pushKV("blockhash", pblockindex->GetBlockHash().GetHex()); + req->WriteReply(HTTP_OK, resp.write() + "\n"); + return true; + } + default: { + return RESTERR(req, HTTP_NOT_FOUND, "output format not found (available: " + AvailableDataFormatsString() + ")"); + } + } +} + static const struct { const char* prefix; bool (*handler)(HTTPRequest* req, const std::string& strReq); @@ -589,6 +635,7 @@ static const struct { {"/rest/mempool/contents", rest_mempool_contents}, {"/rest/headers/", rest_headers}, {"/rest/getutxos", rest_getutxos}, + {"/rest/blockhashbyheight/", rest_blockhash_by_height}, }; void StartREST() |