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authorChristian Grothoff <christian@grothoff.org>2015-01-08 18:37:20 +0100
committerChristian Grothoff <christian@grothoff.org>2015-01-08 18:37:20 +0100
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-initial import for mint
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+/*
+ This file is part of TALER
+ (C) 2014 Christian Grothoff (and other contributing authors)
+
+ TALER is free software; you can redistribute it and/or modify it under the
+ terms of the GNU 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, If not, see <http://www.gnu.org/licenses/>
+*/
+
+/**
+ * @file include/taler_json_lib.h
+ * @brief helper functions for JSON processing using libjansson
+ * @author Sree Harsha Totakura <sreeharsha@totakura.in>
+ */
+
+#ifndef TALER_JSON_LIB_H_
+#define TALER_JSON_LIB_H_
+
+#include <jansson.h>
+
+
+/**
+ * Convert a TALER amount to a JSON
+ * object.
+ *
+ * @param amount the amount
+ * @return a json object describing the amount
+ */
+json_t *
+TALER_JSON_from_amount (struct TALER_Amount amount);
+
+
+/**
+ * Convert absolute timestamp to a json string.
+ *
+ * @param the time stamp
+ * @return a json string with the timestamp in @a stamp
+ */
+json_t *
+TALER_JSON_from_abs (struct GNUNET_TIME_Absolute stamp);
+
+
+
+/**
+ * Convert binary data to a JSON string
+ * with the base32crockford encoding.
+ *
+ * @param data binary data
+ * @param size size of @a data in bytes
+ * @return json string that encodes @a data
+ */
+json_t *
+TALER_JSON_from_data (const void *data, size_t size);
+
+
+/**
+ * Parse given JSON object to Amount
+ *
+ * @param json the json object representing Amount
+ * @param r_amount where the amount has to be written
+ * @return GNUNET_OK upon successful parsing; GNUNET_SYSERR upon error
+ */
+int
+TALER_JSON_to_amount (json_t *json,
+ struct TALER_Amount *r_amount);
+
+/**
+ * Parse given JSON object to absolute time.
+ *
+ * @param json the json object representing absolute time in seconds
+ * @param r_abs where the time has to be written
+ * @return GNUNET_OK upon successful parsing; GNUNET_SYSERR upon error
+ */
+int
+TALER_JSON_to_abs (json_t *json,
+ struct GNUNET_TIME_Absolute *r_abs);
+
+/**
+ * Parse given JSON object to data
+ *
+ * @param json the json object representing data
+ * @param out the pointer to hold the parsed data.
+ * @param out_size the size of r_data.
+ * @return GNUNET_OK upon successful parsing; GNUNET_SYSERR upon error
+ */
+int
+TALER_JSON_to_data (json_t *json,
+ void *out,
+ size_t out_size);
+
+
+#endif /* TALER_JSON_LIB_H_ */
+
+/* End of taler_json_lib.h */