load_from_file

Loads a JSON stream from the content of `filename` and parses it.

If the file is large or shared between processes, [method@Json.Parser.load_from_mapped_file] may be a more efficient way to load it.

See also: [method@Json.Parser.load_from_data]

Example: Parser example (file):

public static int main (string[] args) {
	if (args.length < 2) {
		print ("Usage: test <filename.json>\n");
		return -1;
	}

	// Load a file:
	Json.Parser parser = new Json.Parser ();
	try {
		parser.load_from_file (args[1]);
	} catch (Error e) {
		print ("Unable to parse `%s': %s\n", args[1], e.message);
		return -1;
	}


	// Get the root node:
	Json.Node node = parser.get_root ();

	// manipulate/read the object tree and then exit
	// ...

	node = null;
	return 0;
}

valac --pkg json-glib-1.0 parser-example-file.vala

Parameters:

this	a parser
filename	the path for the file to parse

Returns:

`TRUE` if the file was successfully loaded and parsed.