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/*
This file is part of TALER
Copyright (C) 2015-2021 Taler Systems SA
TALER is free software; you can redistribute it and/or modify it under the
terms of the GNU Affero General Public License as published by the Free Software
Foundation; either version 3, or (at your option) any later version.
TALER is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
A PARTICULAR PURPOSE. See the GNU Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License along with
TALER; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
*/
/**
* @file taler-exchange-httpd_metrics.c
* @brief Handle /metrics requests
* @author Christian Grothoff
*/
#include "platform.h"
#include <gnunet/gnunet_json_lib.h>
#include "taler_dbevents.h"
#include "taler-exchange-httpd_responses.h"
#include "taler-exchange-httpd_keys.h"
#include "taler-exchange-httpd_metrics.h"
#include "taler_json_lib.h"
#include "taler_mhd_lib.h"
#include <jansson.h>
unsigned long long TEH_METRICS_num_requests[TEH_MT_REQUEST_COUNT];
unsigned long long TEH_METRICS_batch_withdraw_num_coins;
unsigned long long TEH_METRICS_num_conflict[TEH_MT_REQUEST_COUNT];
unsigned long long TEH_METRICS_num_signatures[TEH_MT_SIGNATURE_COUNT];
unsigned long long TEH_METRICS_num_verifications[TEH_MT_SIGNATURE_COUNT];
unsigned long long TEH_METRICS_num_keyexchanges[TEH_MT_KEYX_COUNT];
unsigned long long TEH_METRICS_num_success[TEH_MT_SUCCESS_COUNT];
MHD_RESULT
TEH_handler_metrics (struct TEH_RequestContext *rc,
const char *const args[])
{
char *reply;
struct MHD_Response *resp;
MHD_RESULT ret;
(void) args;
GNUNET_asprintf (&reply,
"taler_exchange_success_transactions{type=\"%s\"} %llu\n"
"taler_exchange_success_transactions{type=\"%s\"} %llu\n"
"taler_exchange_success_transactions{type=\"%s\"} %llu\n"
"taler_exchange_success_transactions{type=\"%s\"} %llu\n"
"taler_exchange_success_transactions{type=\"%s\"} %llu\n"
"# HELP taler_exchange_serialization_failures "
" number of database serialization errors by type\n"
"# TYPE taler_exchange_serialization_failures counter\n"
"taler_exchange_serialization_failures{type=\"%s\"} %llu\n"
"taler_exchange_serialization_failures{type=\"%s\"} %llu\n"
"taler_exchange_serialization_failures{type=\"%s\"} %llu\n"
"taler_exchange_serialization_failures{type=\"%s\"} %llu\n"
"# HELP taler_exchange_received_requests "
" number of received requests by type\n"
"# TYPE taler_exchange_received_requests counter\n"
"taler_exchange_received_requests{type=\"%s\"} %llu\n"
"taler_exchange_received_requests{type=\"%s\"} %llu\n"
"taler_exchange_received_requests{type=\"%s\"} %llu\n"
"taler_exchange_received_requests{type=\"%s\"} %llu\n"
"taler_exchange_idempotent_requests{type=\"%s\"} %llu\n"
#if NOT_YET_IMPLEMENTED
"taler_exchange_idempotent_requests{type=\"%s\"} %llu\n"
"taler_exchange_idempotent_requests{type=\"%s\"} %llu\n"
#endif
"taler_exchange_idempotent_requests{type=\"%s\"} %llu\n"
"# HELP taler_exchange_num_signatures "
" number of signatures created by cipher\n"
"# TYPE taler_exchange_num_signatures counter\n"
"taler_exchange_num_signatures{type=\"%s\"} %llu\n"
"taler_exchange_num_signatures{type=\"%s\"} %llu\n"
"taler_exchange_num_signatures{type=\"%s\"} %llu\n"
"# HELP taler_exchange_num_signature_verifications "
" number of signatures verified by cipher\n"
"# TYPE taler_exchange_num_signature_verifications counter\n"
"taler_exchange_num_signature_verifications{type=\"%s\"} %llu\n"
"taler_exchange_num_signature_verifications{type=\"%s\"} %llu\n"
"taler_exchange_num_signature_verifications{type=\"%s\"} %llu\n"
"# HELP taler_exchange_num_keyexchanges "
" number of key exchanges done by cipher\n"
"# TYPE taler_exchange_num_keyexchanges counter\n"
"taler_exchange_num_keyexchanges{type=\"%s\"} %llu\n"
"# HELP taler_exchange_batch_withdraw_num_coins "
" number of coins withdrawn in a batch-withdraw request\n"
"# TYPE taler_exchange_batch_withdraw_num_coins counter\n"
"taler_exchange_batch_withdraw_num_coins{} %llu\n",
"deposit",
TEH_METRICS_num_success[TEH_MT_SUCCESS_DEPOSIT],
"withdraw",
TEH_METRICS_num_success[TEH_MT_SUCCESS_WITHDRAW],
"batch-withdraw",
TEH_METRICS_num_success[TEH_MT_SUCCESS_BATCH_WITHDRAW],
"melt",
TEH_METRICS_num_success[TEH_MT_SUCCESS_MELT],
"refresh-reveal",
TEH_METRICS_num_success[TEH_MT_SUCCESS_REFRESH_REVEAL],
"other",
TEH_METRICS_num_conflict[TEH_MT_REQUEST_OTHER],
"deposit",
TEH_METRICS_num_conflict[TEH_MT_REQUEST_DEPOSIT],
"withdraw",
TEH_METRICS_num_conflict[TEH_MT_REQUEST_WITHDRAW],
"melt",
TEH_METRICS_num_conflict[TEH_MT_REQUEST_MELT],
"other",
TEH_METRICS_num_requests[TEH_MT_REQUEST_OTHER],
"deposit",
TEH_METRICS_num_requests[TEH_MT_REQUEST_DEPOSIT],
"withdraw",
TEH_METRICS_num_requests[TEH_MT_REQUEST_WITHDRAW],
"melt",
TEH_METRICS_num_requests[TEH_MT_REQUEST_MELT],
"withdraw",
TEH_METRICS_num_requests[TEH_MT_REQUEST_IDEMPOTENT_WITHDRAW],
#if NOT_YET_IMPLEMENTED
"deposit",
TEH_METRICS_num_requests[TEH_MT_REQUEST_IDEMPOTENT_DEPOSIT],
"melt",
TEH_METRICS_num_requests[TEH_MT_REQUEST_IDEMPOTENT_MELT],
#endif
"batch-withdraw",
TEH_METRICS_num_requests[
TEH_MT_REQUEST_IDEMPOTENT_BATCH_WITHDRAW],
"rsa",
TEH_METRICS_num_signatures[TEH_MT_SIGNATURE_RSA],
"cs",
TEH_METRICS_num_signatures[TEH_MT_SIGNATURE_CS],
"eddsa",
TEH_METRICS_num_signatures[TEH_MT_SIGNATURE_EDDSA],
"rsa",
TEH_METRICS_num_verifications[TEH_MT_SIGNATURE_RSA],
"cs",
TEH_METRICS_num_verifications[TEH_MT_SIGNATURE_CS],
"eddsa",
TEH_METRICS_num_verifications[TEH_MT_SIGNATURE_EDDSA],
"ecdh",
TEH_METRICS_num_keyexchanges[TEH_MT_KEYX_ECDH],
TEH_METRICS_batch_withdraw_num_coins);
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;
}
/* end of taler-exchange-httpd_metrics.c */
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