iterate_pending_webhooks.h (2982B)
1 /* 2 This file is part of TALER 3 Copyright (C) 2023 Taler Systems SA 4 5 TALER is free software; you can redistribute it and/or modify it under the 6 terms of the GNU General Public License as published by the Free Software 7 Foundation; either version 3, or (at your option) any later version. 8 9 TALER is distributed in the hope that it will be useful, but WITHOUT ANY 10 WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR 11 A PARTICULAR PURPOSE. See the GNU General Public License for more details. 12 13 You should have received a copy of the GNU General Public License along with 14 TALER; see the file COPYING. If not, see <http://www.gnu.org/licenses/> 15 */ 16 /** 17 * @file src/include/merchant-database/iterate_pending_webhooks.h 18 * @brief implementation of the iterate_pending_webhooks function for Postgres 19 * @author Iván Ávalos 20 */ 21 #ifndef MERCHANT_DATABASE_ITERATE_PENDING_WEBHOOKS_H 22 #define MERCHANT_DATABASE_ITERATE_PENDING_WEBHOOKS_H 23 24 #include <taler/taler_util.h> 25 #include <taler/taler_json_lib.h> 26 #include "merchantdb_lib.h" 27 28 29 struct TALER_MERCHANTDB_PostgresContext; 30 /* Callback typedefs */ 31 /** 32 * Typically called by `iterate_pending_webhooks`. 33 * 34 * @param cls a `json_t *` JSON array to build 35 * @param webhook_pending_serial reference to the configured webhook template. 36 * @param next_attempt is the time we should make the next request to the webhook. 37 * @param retries how often have we tried this request to the webhook. 38 * @param url to make request to 39 * @param http_method use for the webhook 40 * @param header of the webhook 41 * @param body of the webhook 42 */ 43 typedef void 44 (*TALER_MERCHANTDB_PendingWebhooksCallback)( 45 void *cls, 46 uint64_t webhook_pending_serial, 47 struct GNUNET_TIME_Absolute 48 next_attempt, 49 uint32_t retries, 50 const char *url, 51 const char *http_method, 52 const char *header, 53 const char *body); 54 55 /** 56 * Lookup the webhook that need to be send in priority. 57 * send. 58 * 59 * @param pg database context 60 * @param limit maximum number of webhooks to return 61 * @param cb pending webhook callback 62 * @param cb_cls callback closure 63 */ 64 // WHERE next_attempt <= now ORDER BY next_attempt ASC LIMIT limit 65 enum GNUNET_DB_QueryStatus 66 TALER_MERCHANTDB_iterate_pending_webhooks (struct TALER_MERCHANTDB_PostgresContext *pg, 67 uint64_t limit, 68 TALER_MERCHANTDB_PendingWebhooksCallback cb, 69 void *cb_cls); 70 71 72 /** 73 * Lookup the next webhook in the pending webhooks that needs to be 74 * sent. With that we can know how long the system can 'sleep'. 75 * 76 * @param pg database context 77 * @param cb pending webhook callback 78 * @param cb_cls callback closure 79 */ 80 // ORDER BY next_attempt ASC LIMIT 1 81 enum GNUNET_DB_QueryStatus 82 TALER_MERCHANTDB_iterate_pending_webhooks_next ( 83 struct TALER_MERCHANTDB_PostgresContext *pg, 84 TALER_MERCHANTDB_PendingWebhooksCallback cb, 85 void *cb_cls); 86 87 88 #endif