Simple JSON with Flutter
JSON handling in Flutter is the same as JSON handling in dart. For a more detailed description of some of the possibilities, see Using Dart with JSON Web Services.
Imports
A single import is required to get the native Dart JSON handling. Simply add this to any file that needs to parse JSON.
import 'dart:convert';(de)serialization
The dynamic nature of dart makes deserializing JSON trivial
List decodedList = JSON.decode('["Flutter", true]');
// decodedList[0] == 'Flutter'
// decodedList[1] == true
Map decodedMap = JSON.decode('{"framework":"Flutter", "awesome":true}');
// decodedMap['framework'] == 'Flutter'
// decodedMap['awesome'] == trueEncoding JSON is just as simple:
var data = JSON.encode({
'framework': "Flutter",
'tags': ['flutter', 'snippets'],
'versions': '0.0.20',
'task': 13511,
});
// data == '{"framework":"Flutter","tags":["flutter","snippets"],"versions":"0.0.20","task":13511}'GitHub
A simple example of parsing JSON with simple API calls can be found in the Flutter JSON API project.