merchant

Merchant backend to process payments, run by merchants
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iterate_external_refunds.h (2472B)


      1 /*
      2    This file is part of TALER
      3    Copyright (C) 2026 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_external_refunds.h
     18  * @brief implementation of the iterate_external_refunds function for Postgres
     19  * @author Bohdan Potuzhnyi
     20  * @author Volodymyr Potuzhnyi
     21  */
     22 #ifndef MERCHANT_DATABASE_ITERATE_EXTERNAL_REFUNDS_H
     23 #define MERCHANT_DATABASE_ITERATE_EXTERNAL_REFUNDS_H
     24 
     25 #include <taler/taler_util.h>
     26 #include <taler/taler_json_lib.h>
     27 #include "merchantdb_lib.h"
     28 
     29 
     30 struct TALER_MERCHANTDB_PostgresContext;
     31 
     32 /**
     33  * Function called with detailed information about an external refund.
     34  *
     35  * @param cls closure
     36  * @param refund_id identifier of the refund within the order
     37  * @param refund_timestamp when was the refund recorded
     38  * @param method external payment method used for the refund
     39  * @param payment_id id of the original external payment entry this
     40  *        refund reverses, NULL if none
     41  * @param amount amount returned to the customer
     42  * @param reason human-readable refund justification
     43  */
     44 typedef void
     45 (*TALER_MERCHANTDB_ExternalRefundCallback)(
     46   void *cls,
     47   const char *refund_id,
     48   struct GNUNET_TIME_Timestamp refund_timestamp,
     49   const char *method,
     50   const char *payment_id,
     51   const struct TALER_Amount *amount,
     52   const char *reason);
     53 
     54 
     55 /**
     56  * Retrieve the external refunds recorded for the given @a order_id.
     57  *
     58  * @param pg database context
     59  * @param instance_id instance's identifier
     60  * @param order_id order to look up external refunds for
     61  * @param cb function to call with each external refund
     62  * @param cb_cls closure for @a cb
     63  * @return transaction status
     64  */
     65 enum GNUNET_DB_QueryStatus
     66 TALER_MERCHANTDB_iterate_external_refunds (
     67   struct TALER_MERCHANTDB_PostgresContext *pg,
     68   const char *instance_id,
     69   const char *order_id,
     70   TALER_MERCHANTDB_ExternalRefundCallback cb,
     71   void *cb_cls);
     72 
     73 #endif