How to inject different service based on certain build environment in Angular2?

Question

I have HeroMockService that will return mocked data and HeroService that will call back end service to retrieve heroes from database.

Assum

Answer 1

Here's an example of the latest way to do it with conditional environment logic. Note that EventService and LogService are just examples of other services you may have).

providers: [
    EventService,
    LogService,
    MyService,
    {
      provide: MyService,
      useClass: (environment.custom == null || environment.custom === '' || environment.custom === 'MyCustomerService')
        ? MyCustomService : MyService
    }
  ]
]