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-rw-r--r--src/rest.cpp47
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()