taler-merchant-httpd_private-get-categories-ID.c (3970B)
1 /* 2 This file is part of TALER 3 (C) 2022-2024 Taler Systems SA 4 5 TALER is free software; you can redistribute it and/or modify it under the 6 terms of the GNU Affero 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 taler-merchant-httpd_private-get-categories-ID.c 18 * @brief implement GET /private/categories/$ID 19 * @author Christian Grothoff 20 */ 21 #include "platform.h" 22 #include "taler-merchant-httpd_private-get-categories-ID.h" 23 #include <taler/taler_json_lib.h> 24 25 26 /** 27 * Handle a GET "/private/categories/$ID" request. 28 * 29 * @param rh context of the handler 30 * @param connection the MHD connection to handle 31 * @param[in,out] hc context with further information about the request 32 * @return MHD result code 33 */ 34 MHD_RESULT 35 TMH_private_get_categories_ID ( 36 const struct TMH_RequestHandler *rh, 37 struct MHD_Connection *connection, 38 struct TMH_HandlerContext *hc) 39 { 40 struct TMH_MerchantInstance *mi = hc->instance; 41 enum GNUNET_DB_QueryStatus qs; 42 unsigned long long cnum; 43 char dummy; 44 struct TALER_MERCHANTDB_CategoryDetails cd; 45 size_t num_products = 0; 46 char *products = NULL; 47 48 GNUNET_assert (NULL != mi); 49 GNUNET_assert (NULL != hc->infix); 50 if (1 != sscanf (hc->infix, 51 "%llu%c", 52 &cnum, 53 &dummy)) 54 { 55 GNUNET_break_op (0); 56 return TALER_MHD_reply_with_error ( 57 connection, 58 MHD_HTTP_BAD_REQUEST, 59 TALER_EC_GENERIC_PARAMETER_MALFORMED, 60 "category_id must be a number"); 61 } 62 63 qs = TMH_db->select_category (TMH_db->cls, 64 mi->settings.id, 65 cnum, 66 &cd, 67 &num_products, 68 &products); 69 if (0 > qs) 70 { 71 GNUNET_break (0); 72 return TALER_MHD_reply_with_error (connection, 73 MHD_HTTP_INTERNAL_SERVER_ERROR, 74 TALER_EC_GENERIC_DB_FETCH_FAILED, 75 "select_category"); 76 } 77 if (GNUNET_DB_STATUS_SUCCESS_NO_RESULTS == qs) 78 { 79 return TALER_MHD_reply_with_error (connection, 80 MHD_HTTP_NOT_FOUND, 81 TALER_EC_MERCHANT_GENERIC_CATEGORY_UNKNOWN, 82 hc->infix); 83 } 84 { 85 MHD_RESULT ret; 86 json_t *jproducts; 87 const char *pos = products; 88 89 jproducts = json_array (); 90 GNUNET_assert (NULL != jproducts); 91 for (unsigned int i = 0; i<num_products; i++) 92 { 93 const char *product_id = pos; 94 json_t *jprod; 95 96 pos = pos + strlen (product_id) + 1; 97 jprod = GNUNET_JSON_PACK ( 98 GNUNET_JSON_pack_string ("product_id", 99 product_id)); 100 GNUNET_assert (0 == 101 json_array_append_new (jproducts, 102 jprod)); 103 } 104 GNUNET_free (products); 105 ret = TALER_MHD_REPLY_JSON_PACK ( 106 connection, 107 MHD_HTTP_OK, 108 GNUNET_JSON_pack_string ("name", 109 cd.category_name), 110 GNUNET_JSON_pack_allow_null ( 111 GNUNET_JSON_pack_object_incref ("name_i18n", 112 cd.category_name_i18n)), 113 GNUNET_JSON_pack_array_steal ("products", 114 jproducts)); 115 TALER_MERCHANTDB_category_details_free (&cd); 116 return ret; 117 } 118 } 119 120 121 /* end of taler-merchant-httpd_private-get-categories-ID.c */