json_object_lite 1.1.2

  • README.md
  • Example
  • Installing
  • Versions
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Build Status

json_object_lite allows dot notation access to JSON.parse'd objects, for Dart, lite version.

This package is a re-implementation of the json_object package by Chris Buckett except it doesn't use mirrors and hence is a much lighter version. You of course lose the JSON serialization/deserialization of the original package, however there are more advanced packages you can use for this purpose, e.g dson.

Other than that this is a faithful, lighter, re-implementation intended as a drop in replacement for the original JsonObject. Please see the json_object documentation for further details.

1.1.2<br><br> Pub updates

1.1.1<br><br> Strong mode updates for pub

1.1.0<br><br> Fix immutability to follow that of json_object, not reverse it

1.0.2<br><br> Fix failing test in Chrome

1.0.1<br><br> Issue 1, library name bug

1.0.0<br><br> Initial Release


/// This example is taken from the following article :-
/// http://www.dartlang.org/articles/json-web-service/

import 'package:json_object_lite/json_object_lite.dart';

/// An example taken from the dartlang article for JSON object, found here
/// https://webdev.dartlang.org/articles/get-data/json-web-service.

class LanguageWebsite extends JsonObjectLite {
  LanguageWebsite(); // default constructor (empty) implementation

  factory LanguageWebsite.fromJsonString(String json) {
    // from JSON constructor implementation
    final languageWebsite =
    new LanguageWebsite(); // create an empty instance of this class
    // Create an instance of JsonObjectLite, populated with the json string and
    // injecting the _LanguageWebsite instance.
    final jsonObject = new JsonObjectLite.fromJsonString(json, languageWebsite);
    return jsonObject; // return the populated JsonObject instance

  factory LanguageWebsite.fromJsonObject(JsonObjectLite jsonObject) {
    return JsonObjectLite.toTypedJsonObjectLite(
        jsonObject, new LanguageWebsite());

class Language extends JsonObjectLite {
  Language(); // empty, default constructor

  factory Language.fromJsonString(String json) {
    // from JSON constructor implementation
    return new JsonObjectLite.fromJsonString(
        json, new Language()); // as _LangaugeWebsite, return an instance
    // of JsonObjectLite, containing the json string and
    // injecting a _Language instance

int main() {
  final responseText = """
  "language": "dart", 
  "targets": ["dartium","javascript"], 
  "website": {
    "homepage": "www.dartlang.org",
    "api": "api.dartlang.org"
  final Language data = new Language.fromJsonString(responseText);

  // tools can now validate the property access
  print(data.language); // should be dart
  print(data.targets[0]); // should be dartium

  // nested types are also strongly typed
  final LanguageWebsite website = new LanguageWebsite.fromJsonObject(
      data.website); // contains a JsonObjectLite
  website.isImmutable = false; // Now we can extend it
  website.homepage = "http://www.dartlang.org";

  return 0;

Use this package as a library

1. Depend on it

Add this to your package's pubspec.yaml file:

  json_object_lite: ^1.1.2

2. Install it

You can install packages from the command line:

with pub:

$ pub get

Alternatively, your editor might support pub get. Check the docs for your editor to learn more.

3. Import it

Now in your Dart code, you can use:

import 'package:json_object_lite/json_object_lite.dart';
Version Uploaded Documentation Archive
1.1.2 Feb 19, 2018 Go to the documentation of json_object_lite 1.1.2 Download json_object_lite 1.1.2 archive
1.1.1 Dec 11, 2017 Go to the documentation of json_object_lite 1.1.1 Download json_object_lite 1.1.1 archive
1.1.0 Oct 16, 2017 Go to the documentation of json_object_lite 1.1.0 Download json_object_lite 1.1.0 archive
1.0.2 Oct 13, 2017 Go to the documentation of json_object_lite 1.0.2 Download json_object_lite 1.0.2 archive
1.0.1 Oct 2, 2017 Go to the documentation of json_object_lite 1.0.1 Download json_object_lite 1.0.1 archive
1.0.0 Sep 26, 2017 Go to the documentation of json_object_lite 1.0.0 Download json_object_lite 1.0.0 archive
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The package version is not analyzed, because it does not support Dart 2. Until this is resolved, the package will receive a health and maintenance score of 0.

Issues and suggestions

Support Dart 2 in pubspec.yaml.

The SDK constraint in pubspec.yaml doesn't allow the Dart 2.0.0 release. For information about upgrading it to be Dart 2 compatible, please see https://www.dartlang.org/dart-2#migration.


Package Constraint Resolved Available
Direct dependencies
Dart SDK >=1.8.0 <2.0.0