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implement basic /metrics

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Christian Grothoff 2021-12-07 21:27:08 +01:00
parent 71933dd2e9
commit add2d29acf
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GPG Key ID: 939E6BE1E29FC3CC
1 changed files with 55 additions and 3 deletions
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58
src/exchange/taler-exchange-httpd_metrics.c
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@ -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;
}