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105 lines
3.9 KiB
105 lines
3.9 KiB
#ifndef LIGHTNING_DAEMON_JSON_H
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#define LIGHTNING_DAEMON_JSON_H
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#include "config.h"
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#include <ccan/tal/tal.h>
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#include <stdbool.h>
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#include <stdint.h>
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#include <stdlib.h>
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#define JSMN_STRICT 1
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# include "jsmn/jsmn.h"
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struct json_result;
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/* Include " if it's a string. */
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const char *json_tok_contents(const char *buffer, const jsmntok_t *t);
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/* Include " if it's a string. */
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int json_tok_len(const jsmntok_t *t);
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/* Is this a string equal to str? */
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bool json_tok_streq(const char *buffer, const jsmntok_t *tok, const char *str);
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/* Extract number from this (may be a string, or a number literal) */
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bool json_tok_number(const char *buffer, const jsmntok_t *tok,
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unsigned int *num);
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/* Extract number from this (may be a string, or a number literal) */
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bool json_tok_u64(const char *buffer, const jsmntok_t *tok,
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uint64_t *num);
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/* Extract satoshis from this (may be a string, or a decimal number literal) */
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bool json_tok_bitcoin_amount(const char *buffer, const jsmntok_t *tok,
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uint64_t *satoshi);
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/* Extract boolean this (must be a true or false) */
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bool json_tok_bool(const char *buffer, const jsmntok_t *tok, bool *b);
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/* Is this the null primitive? */
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bool json_tok_is_null(const char *buffer, const jsmntok_t *tok);
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/* Returns next token with same parent. */
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const jsmntok_t *json_next(const jsmntok_t *tok);
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/* Get the parameters (by position or name). Followed by triples of
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* of const char *name, const jsmntok_t **ret_ptr, then NULL.
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*
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* If name starts with '?' it is optional (and will be set to NULL
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* if it's a literal 'null' or not present).
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* Otherwise false is returned.
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*/
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bool json_get_params(const char *buffer, const jsmntok_t param[], ...);
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/* Get top-level member. */
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const jsmntok_t *json_get_member(const char *buffer, const jsmntok_t tok[],
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const char *label);
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/* Get index'th array member. */
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const jsmntok_t *json_get_arr(const char *buffer, const jsmntok_t tok[],
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size_t index);
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/* Guide is a string with . for members, [] around indexes. */
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const jsmntok_t *json_delve(const char *buffer,
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const jsmntok_t *tok,
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const char *guide);
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/* If input is complete and valid, return tokens. */
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jsmntok_t *json_parse_input(const char *input, int len, bool *valid);
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/* Creating JSON strings */
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/* '"fieldname" : [ ' or '[ ' if fieldname is NULL */
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void json_array_start(struct json_result *ptr, const char *fieldname);
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/* '"fieldname" : { ' or '{ ' if fieldname is NULL */
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void json_object_start(struct json_result *ptr, const char *fieldname);
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/* ' ], ' */
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void json_array_end(struct json_result *ptr);
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/* ' }, ' */
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void json_object_end(struct json_result *ptr);
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struct json_result *new_json_result(const tal_t *ctx);
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/* '"fieldname" : "value"' or '"value"' if fieldname is NULL*/
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void json_add_string(struct json_result *result, const char *fieldname, const char *value);
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/* '"fieldname" : literal' or 'literal' if fieldname is NULL*/
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void json_add_literal(struct json_result *result, const char *fieldname,
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const char *literal, int len);
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/* '"fieldname" : value' or 'value' if fieldname is NULL */
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void json_add_num(struct json_result *result, const char *fieldname,
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unsigned int value);
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/* '"fieldname" : value' or 'value' if fieldname is NULL */
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void json_add_u64(struct json_result *result, const char *fieldname,
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uint64_t value);
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/* '"fieldname" : true|false' or 'true|false' if fieldname is NULL */
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void json_add_bool(struct json_result *result, const char *fieldname,
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bool value);
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/* '"fieldname" : null' or 'null' if fieldname is NULL */
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void json_add_null(struct json_result *result, const char *fieldname);
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/* '"fieldname" : "0189abcdef..."' or "0189abcdef..." if fieldname is NULL */
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void json_add_hex(struct json_result *result, const char *fieldname,
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const void *data, size_t len);
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void json_add_object(struct json_result *result, ...);
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const char *json_result_string(const struct json_result *result);
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#endif /* LIGHTNING_DAEMON_JSON_H */
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