diff options
Diffstat (limited to 'src/backend/taler-merchant-httpd_private-get-products.c')
-rw-r--r-- | src/backend/taler-merchant-httpd_private-get-products.c | 96 |
1 files changed, 96 insertions, 0 deletions
diff --git a/src/backend/taler-merchant-httpd_private-get-products.c b/src/backend/taler-merchant-httpd_private-get-products.c new file mode 100644 index 00000000..8f70c9fe --- /dev/null +++ b/src/backend/taler-merchant-httpd_private-get-products.c @@ -0,0 +1,96 @@ +/* + This file is part of TALER + (C) 2019, 2020 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 General Public License for more details. + + You should have received a copy of the GNU General Public License along with + TALER; see the file COPYING. If not, see <http://www.gnu.org/licenses/> +*/ +/** + * @file backend/taler-merchant-httpd_private-get-products.c + * @brief implement GET /products + * @author Christian Grothoff + */ +#include "platform.h" +#include "taler-merchant-httpd_private-get-products.h" + + +/** + * Add product details to our JSON array. + * + * @param cls a `json_t *` JSON array to build + * @param key unused + * @param product_id ID of the product + * @param in_stock how many are currently in stock (possibly locked), -1 for infinite + * @param unit in which unit is the stock measured in + */ +static void +add_product (void *cls, + const struct GNUNET_HashCode *key, + const char *product_id, + long long in_stock, + const char *unit) +{ + json_t *pa = cls; + + (void) key; + GNUNET_assert (0 == + json_array_append_new ( + pa, + json_pack ( + "{s:s, s:I, s:s}", + "product_id", + product_id, + "stock", + (json_int_t) in_stock, + "unit", + unit))); +} + + +/** + * Handle a GET "/products" request. + * + * @param rh context of the handler + * @param connection the MHD connection to handle + * @param[in,out] hc context with further information about the request + * @return MHD result code + */ +MHD_RESULT +TMH_private_get_products (const struct TMH_RequestHandler *rh, + struct MHD_Connection *connection, + struct TMH_HandlerContext *hc) +{ + json_t *pa; + enum GNUNET_DB_QueryStatus qs; + + pa = json_array (); + GNUNET_assert (NULL != pa); + qs = TMH_db->lookup_products (TMH_db->cls, + hc->instance->settings.id, + &add_product, + pa); + if (0 > qs) + { + GNUNET_break (0); + json_decref (pa); + return TALER_MHD_reply_with_error (connection, + MHD_HTTP_INTERNAL_SERVER_ERROR, + TALER_EC_GET_PRODUCTS_DB_LOOKUP_ERROR, + "failed to lookup products in database"); + } + return TALER_MHD_reply_json_pack (connection, + MHD_HTTP_OK, + "{s:o}", + "products", pa); +} + + +/* end of taler-merchant-httpd_private-get-products.c */ |