miodi

Dependency Injection tools for Dart.

This library aims to easily manage dependencies in your business logic components.

The project is in beta testing, please write about all the errors found.

https://pub.dartlang.org/packages/miodi

Docs

Documentation coming soon, please wait.

Example

Added example project. Pls check for future updates for more information. https://github.com/Miolin/miodi/tree/master/example

You can make an injection into the constructors of your objects, there are no restrictions.

Create component:


class AppComponent extends MiodiComponent {
  final String param;

  AppComponent(this.param) : super([
    module([
      singleton(Database, () => DatabaseImpl()),
      factory(User, () => User()),
      factory(User, () => User(), name: 'provider_name'),
      ]),
      module([
        singleton(Logger, () => FileLogger(param), initOnStart: true),
        factory(LogSender, () => LogSender(get())),
      ])
  ]);
}

abstract class Database {}

class DatabaseImpl implements Database {}

class User {}

abstract class Logger {}

class FileLogger implements Logger {
  final String tag;
  FileLogger(this.tag);
}

class LogSender {
  final Logger logger;
  LogSender(this.logger);
}

In the body of the component, use the get() method to get dependencies (from the current or other modules). You can use several components. You can also use the component's constructor to represent dependencies in modules.

Usage example:

final appComponent = AppComponent('TAG');

void main() async {
  Miodi.init([appComponent]);

  Database database = Miodi.inject();
  //  or
  User user = inject();
  
  
  //and use 'injectAsync' if object creation takes time or requires delays
  Logger fileLogger = await Miodi.injectAsync();

  LogSender sender = Miodi.inject();
  sender.sendLog();
}

Libraries

component
configuration
consts
errors
miodi
module
providers