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boost::property_tree::json_parser::write_json
// In header: <boost/property_tree/json_parser.hpp> template<typename Ptree> void write_json(const std::string & filename, const Ptree & pt, const std::locale & loc = std::locale(), bool pretty = true);
Translates the property tree to JSON and writes it the given file.
| ![[Note]](../../../../../doc/src/images/note.png) | Note | 
|---|---|
| Any property tree key containing only unnamed subkeys will be rendered as JSON arrays. | 
| Parameters: | 
 | ||||||||
| Requires: | pt cannot contain keys that have both subkeys and non-empty data. | ||||||||
| Throws: | json_parser_error In case of error translating the property tree to JSON or writing to the file. |