Dependency Injection

With the Get module you can easy inject your dependencies as a singleton, lazy singleton or as a factory.

Singletons

import 'package:flutter_meedu/meedu.dart';

// inject the dependency as a singleton

Get.i.put<AuthRepository>(new AuthRepositoryImpl());

// whenever part of your code you can get the dependency

Get.i.find<AuthRepository>();

// remove the dependency

Get.i.remove<AuthRepository>();

// use a lazy put to inject the dependency as a singleton

// but it only will be created until Get.i.find<AuthRepository>() is called

Get.i.lazyPut<AuthRepository>(()=>new AuthRepositoryImpl());

Factory

If you want to get a new instance every time you call find in that case you could use factoryPut

class AuthRepository {

final String apiHost;

Person([this.apiHost = 'https://dev.api.com']);

}

// register a factory

Get.i.factoryPut<AuthRepository, void>((_) => AuthRepository());

// get a new instance of AuthRepository

final repository = Get.i.factoryFind<AuthRepository, void>();

NOTE

If you want pass an initial value to AuthRepository

Get.i.factoryPut<AuthRepository, String>(

(String? arguments) => AuthRepository(arguments ?? "https://dev.api.com"),

);

// get a new instance of AuthRepository with a initial value

final testRepo = Get.i.factoryFind<AuthRepository, String>(arguments:"https://test.api.com");

final liveRepo = Get.i.factoryFind<AuthRepository, String>(arguments:"https://live.api.com");

Testing

To avoid conflics with dependencies injected in the Get module you can clear the dependencies using a setUp or a tearDown before or after each test.

setUp((){

Get.i.clear(); // remove all dependencies

});