Packages

Zapp! supports using any web compatible Dart and/or Flutter package. You can find packages on pub.dev, the official package repository for Dart and Flutter.

Once you've found a package, you can check whether it's compatible by idenfying whether the Web platform is listed, for example:

Installing Packages

Much like a local project, you can add packages to the dependencies section of your pubspec.yaml file. For example:

name: flutter_app
description: A new Flutter project.

environment:
  sdk: '>=2.18.2 <3.0.0'

dependencies:
  flutter:
    sdk: flutter
  http: ^0.13.5

Once added, you can install the package by either building your application, by running the 'pub get' command, or the 'Pub Get' editor action.

Using Packages

Once installed, simply import the package at the top of any .dart file in your project:

import 'package:http/http.dart' as http;

var url = Uri.https('example.com', 'whatsit/create');
var response = await http.post(url, body: {'name': 'doodle', 'color': 'blue'});

IntelliSense support is built directly into the editor, so you can easily identify any available classes, methods, properties or errors with your package usage.

Package Versions

Much like you'd expect from your local environment, you can specify a version range for any package you install. For example:

http: ^0.13.5  # Install version 0.13.5 or later, but before 0.14.0
http: '0.13.5' # Install version 0.13.5 specifically
http:          # Install the latest version of the package

To lean more, visit the official documentation.