Example usage of ReflectiveInjector in `injection-js` ( Angular 4 API) read more: https://v4.angular.io/api/core/ReflectiveInjector ( @Injectable should separate file)

ReflectiveInjector.ts

import 'reflect-metadata';
import { ReflectiveInjector, Injectable, Injector } from 'injection-js';

class Service {
    get() {
        return "my service";
    }
}

class Service2 {
    get() {
        return "my service 2";
    }
}

@Injectable()
class Controller {
    constructor(public service: Service, public service2: Service2) {}
}

const injector: Injector = ReflectiveInjector.resolveAndCreate([Service, Controller, Service2]);
const controller = injector.get(Controller) as Controller;
console.log(controller.service.get());
console.log(controller.service2.get());

/**
 *  Output
 *  my service
 *  my service 2
 */