gboolean
parse_json (constchar *filename)
{
g_autoptr(JsonParser) parser = json_parser_new ();
g_autoptr(GError) error = NULL
json_parser_load_from_file (parser, filename, &error);
if (error != NULL)
{
g_critical ("Unable to parse '%s': %s", filename, error->message);
return FALSE;
}
g_autoptr(JsonNode) root = json_parser_get_root (parser);
// manipulate the object tree from the root nodereturn TRUE
}
By default, the entire process of loading the data and parsing it is
synchronous; the json.parser.Parser.loadFromStreamAsync API will
load the data asynchronously, but parse it in the main context as the
signals of the parser must be emitted in the same thread. If you do
not use signals, and you wish to also parse the JSON data without blocking,
you should use a gio.task.Task and the synchronous json.parser.Parser API inside the
task itself.
json.parser.Parser provides an object for parsing a JSON data stream, either inside a file or inside a static buffer.
Using json.parser.Parser
The json.parser.Parser API is fairly simple:
By default, the entire process of loading the data and parsing it is synchronous; the json.parser.Parser.loadFromStreamAsync API will load the data asynchronously, but parse it in the main context as the signals of the parser must be emitted in the same thread. If you do not use signals, and you wish to also parse the JSON data without blocking, you should use a gio.task.Task and the synchronous json.parser.Parser API inside the task itself.