ssgx::json_t Namespace Reference

This module is a lightweight wrapper for nlohmann::json, designed for extracting values from a JSON object. More...

Functions
bool	fetch_json_string_node (const nlohmann::json &root, const std::string &node_name, std::string &value, std::string &err_msg)
	Extract a string from a JSON object.
bool	fetch_json_int_node (const nlohmann::json &root, const std::string &node_name, int &value, std::string &err_msg)
	Extract an integer from a JSON object.
bool	fetch_json_bool_node (const nlohmann::json &root, const std::string &node_name, bool &value, std::string &err_msg)
	Extract a boolean value from a JSON object.
bool	fetch_json_long_node (const nlohmann::json &root, const std::string &node_name, long &value, std::string &err_msg)
	Extract a long integer from a JSON object.
bool	fetch_json_array_node (const nlohmann::json &root, const std::string &node_name, nlohmann::json &value, std::string &err_msg)
	Extract a json array from a JSON object.
bool	fetch_json_object_node (const nlohmann::json &root, const std::string &node_name, nlohmann::json &value, std::string &err_msg)
	Extract a json object from a JSON object.

Detailed Description

This module is a lightweight wrapper for nlohmann::json, designed for extracting values from a JSON object.

Function Documentation

fetch_json_array_node()

bool ssgx::json_t::fetch_json_array_node	(	const nlohmann::json &	root,
		const std::string &	node_name,
		nlohmann::json &	value,
		std::string &	err_msg )

Extract a json array from a JSON object.

Parameters

[in]	root	json object
[in]	node_name	key in a JSON object
[out]	value	value in a JSON object
[out]	err_msg	error message

Returns

Return true if successful; otherwise, return false

fetch_json_bool_node()

bool ssgx::json_t::fetch_json_bool_node	(	const nlohmann::json &	root,
		const std::string &	node_name,
		bool &	value,
		std::string &	err_msg )

Extract a boolean value from a JSON object.

Parameters

[in]	root
[in]	node_name
[out]	value
[out]	err_msg

Returns

Return true if successful; otherwise, return false

fetch_json_int_node()

bool ssgx::json_t::fetch_json_int_node	(	const nlohmann::json &	root,
		const std::string &	node_name,
		int &	value,
		std::string &	err_msg )

Extract an integer from a JSON object.

Parameters

[in]	root	json object
[in]	node_name	key in a JSON object
[out]	value	value in a JSON object
[out]	err_msg	error message

Returns

Return true if successful; otherwise, return false

fetch_json_long_node()

bool ssgx::json_t::fetch_json_long_node	(	const nlohmann::json &	root,
		const std::string &	node_name,
		long &	value,
		std::string &	err_msg )

Extract a long integer from a JSON object.

Parameters

[in]	root	json object
[in]	node_name	key in a JSON object
[out]	value	value in a JSON object
[out]	err_msg	error message

Returns

Return true if successful; otherwise, return false

fetch_json_object_node()

bool ssgx::json_t::fetch_json_object_node	(	const nlohmann::json &	root,
		const std::string &	node_name,
		nlohmann::json &	value,
		std::string &	err_msg )

Extract a json object from a JSON object.

Parameters

[in]	root	json object
[in]	node_name	key in a JSON object
[out]	value	value in a JSON object
[out]	err_msg	error message

Returns

Return true if successful; otherwise, return false

fetch_json_string_node()

bool ssgx::json_t::fetch_json_string_node	(	const nlohmann::json &	root,
		const std::string &	node_name,
		std::string &	value,
		std::string &	err_msg )

Extract a string from a JSON object.

Parameters

[in]	root	json object
[in]	node_name	key in a JSON object
[out]	value	value in a JSON object
[out]	err_msg	error message

Returns

Return true if successful; otherwise, return false