102 lines
2.7 KiB
C
102 lines
2.7 KiB
C
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/*
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This file is part of TALER
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(C) 2014 Christian Grothoff (and other contributing authors)
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TALER is free software; you can redistribute it and/or modify it under the
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terms of the GNU General Public License as published by the Free Software
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Foundation; either version 3, or (at your option) any later version.
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TALER is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
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A PARTICULAR PURPOSE. See the GNU General Public License for more details.
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You should have received a copy of the GNU General Public License along with
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TALER; see the file COPYING. If not, If not, see <http://www.gnu.org/licenses/>
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*/
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/**
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* @file include/taler_json_lib.h
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* @brief helper functions for JSON processing using libjansson
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* @author Sree Harsha Totakura <sreeharsha@totakura.in>
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*/
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#ifndef TALER_JSON_LIB_H_
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#define TALER_JSON_LIB_H_
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#include <jansson.h>
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/**
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* Convert a TALER amount to a JSON
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* object.
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*
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* @param amount the amount
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* @return a json object describing the amount
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*/
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json_t *
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TALER_JSON_from_amount (struct TALER_Amount amount);
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/**
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* Convert absolute timestamp to a json string.
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*
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* @param the time stamp
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* @return a json string with the timestamp in @a stamp
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*/
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json_t *
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TALER_JSON_from_abs (struct GNUNET_TIME_Absolute stamp);
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/**
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* Convert binary data to a JSON string
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* with the base32crockford encoding.
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*
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* @param data binary data
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* @param size size of @a data in bytes
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* @return json string that encodes @a data
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*/
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json_t *
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TALER_JSON_from_data (const void *data, size_t size);
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/**
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* Parse given JSON object to Amount
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*
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* @param json the json object representing Amount
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* @param r_amount where the amount has to be written
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* @return GNUNET_OK upon successful parsing; GNUNET_SYSERR upon error
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*/
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int
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TALER_JSON_to_amount (json_t *json,
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struct TALER_Amount *r_amount);
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/**
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* Parse given JSON object to absolute time.
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*
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* @param json the json object representing absolute time in seconds
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* @param r_abs where the time has to be written
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* @return GNUNET_OK upon successful parsing; GNUNET_SYSERR upon error
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*/
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int
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TALER_JSON_to_abs (json_t *json,
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struct GNUNET_TIME_Absolute *r_abs);
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/**
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* Parse given JSON object to data
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*
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* @param json the json object representing data
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* @param out the pointer to hold the parsed data.
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* @param out_size the size of r_data.
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* @return GNUNET_OK upon successful parsing; GNUNET_SYSERR upon error
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*/
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int
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TALER_JSON_to_data (json_t *json,
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void *out,
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size_t out_size);
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#endif /* TALER_JSON_LIB_H_ */
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/* End of taler_json_lib.h */
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