typedi

• typedi Service

• typedi Container

• typedi Inject

• typedi init

import 'reflect-metadata';

"emitDecoratorMetadata": true,
"experimentalDecorators": true,

 

• typedi example

import { Container, Service } from 'typedi';

@Service()
class ExampleInjectedService {
  printMessage() {
    console.log('I am alive!');
  }
}

@Service()
class ExampleService {
  constructor(
    // because we annotated ExampleInjectedService with the @Service()
    // decorator TypeDI will automatically inject an instance of
    // ExampleInjectedService here when the ExampleService class is requested
    // from TypeDI.
    private injectedService: ExampleInjectedService
  ) {}
}

const serviceInstance = Container.get(ExampleService);
// we request an instance of ExampleService from TypeDI

serviceInstance.injectedService.printMessage();
// logs "I am alive!" to the console

 

github

typestack/typedi

Simple yet powerful dependency injection tool for JavaScript and TypeScript. - typestack/typedi

https://github.com/typestack/typedi