json_conv

json_conv started as a fork of json_god to add Annotation Support.

Most of the source code has been rewritten since then. json_conv focuses on Speed and does not support encoding for now.

Decoding of json Strings compared to Dartson and json_god: JSON.decode took: 741ms json_conv took: 3495ms json_conv map took: 7583ms json_god took: 9474ms dartson took: 42433ms

Installation

dependencies:
  json_conv: 
    git:
    url: git://github.com/Kemonozume/json_conv.git
    ref: 91460620483295f31fecb0b1d6496ef347a2b21f

Usage

Check out the Tests to see how to use json_conv.

Dart2JS Compatibility

json_conv does not support Transformers for now and you need to use @MirrorUsed. @MirrorsUsed documentation can be found here.

FIXME ;)

Deserialization is equally easy, and is provided through god.deserialize.

Map map = god.deserialize('{"hello":"world"}');
int three = god.deserialize("3");

Deserializing to Classes

JSON God lets you deserialize JSON into an instance of any type. Simply pass the type as the second argument to god.deserialize.

If the class has a fromJson constructor, it will be called instead.

class Child {
  String foo;
}

class Parent {
  String hello;
  Child child = new Child();
}

main() {
  God god = new God();
  Parent parent = god.deserialize('{"hello":"world","child":{"foo":"bar"}}', Parent);
  print(parent);
}

Any JSON-deserializable classes must initializable without parameters. If new Foo() would throw an error, then you can't use Foo with JSON.

This allows for validation of a sort, as only fields you have declared will be accepted.

class HasAnInt { int theInt; }

HasAnInt invalid = god.deserialize('["some invalid input"]', HasAnInt);
// Throws an error