exchange

commit add2d29acf1d73258c034f82a544e591009cd238
parent 71933dd2e9b5b66dbc72cdde9ea7b498a11db197
Author: Christian Grothoff <christian@grothoff.org>
Date:   Tue,  7 Dec 2021 21:27:08 +0100

implement basic /metrics

Diffstat:
M
src/exchange/taler-exchange-httpd_metrics.c
 | 
58
+++++++++++++++++++++++++++++++++++++++++++++++++++++++---

1 file changed, 55 insertions(+), 3 deletions(-)
diff --git a/src/exchange/taler-exchange-httpd_metrics.c b/src/exchange/taler-exchange-httpd_metrics.c
@@ -38,10 +38,62 @@ MHD_RESULT
 TEH_handler_metrics (struct TEH_RequestContext *rc,
                      const char *const args[])
 {
+  char *reply;
+  struct MHD_Response *resp;
+  MHD_RESULT ret;
+
   (void) args;
-  return TALER_MHD_reply_json (rc->connection,
-                               json_pack ("{}"),
-                               MHD_HTTP_NO_CONTENT);
+  GNUNET_asprintf (&reply,
+                   "received_requests(type='%s') %llu\n"
+                   "serialization_failures(type='%s') %llu\n"
+                   "received_requests(type='%s') %llu\n"
+                   "serialization_failures(type='%s') %llu\n"
+                   "received_requests(type='%s') %llu\n"
+                   "serialization_failures(type='%s') %llu\n"
+                   "received_requests(type='%s') %llu\n"
+                   "serialization_failures(type='%s') %llu\n"
+                   "received_requests(type='%s') %llu\n"
+                   "serialization_failures(type='%s') %llu\n"
+                   "received_requests(type='%s') %llu\n"
+                   "serialization_failures(type='%s') %llu\n"
+                   "received_requests(type='%s') %llu\n"
+                   "serialization_failures(type='%s') %llu\n",
+                   "other",
+                   TEH_METRICS_num_requests[TEH_MT_OTHER],
+                   "other",
+                   TEH_METRICS_num_conflict[TEH_MT_OTHER],
+                   "deposit",
+                   TEH_METRICS_num_requests[TEH_MT_DEPOSIT],
+                   "deposit",
+                   TEH_METRICS_num_conflict[TEH_MT_DEPOSIT],
+                   "withdraw",
+                   TEH_METRICS_num_requests[TEH_MT_WITHDRAW],
+                   "withdraw",
+                   TEH_METRICS_num_conflict[TEH_MT_WITHDRAW],
+                   "melt",
+                   TEH_METRICS_num_requests[TEH_MT_MELT],
+                   "melt",
+                   TEH_METRICS_num_conflict[TEH_MT_MELT],
+                   "reveal-precheck",
+                   TEH_METRICS_num_requests[TEH_MT_REVEAL_PRECHECK],
+                   "reveal-precheck",
+                   TEH_METRICS_num_conflict[TEH_MT_REVEAL_PRECHECK],
+                   "reveal",
+                   TEH_METRICS_num_requests[TEH_MT_REVEAL],
+                   "reveal",
+                   TEH_METRICS_num_conflict[TEH_MT_REVEAL],
+                   "reveal-persist",
+                   TEH_METRICS_num_requests[TEH_MT_REVEAL_PERSIST],
+                   "reveal-persist",
+                   TEH_METRICS_num_conflict[TEH_MT_REVEAL_PERSIST]);
+  resp = MHD_create_response_from_buffer (strlen (reply),
+                                          reply,
+                                          MHD_RESPMEM_MUST_FREE);
+  ret = MHD_queue_response (rc->connection,
+                            MHD_HTTP_OK,
+                            resp);
+  MHD_destroy_response (resp);
+  return ret;
 }