fix: Adding Interface into constructor throw: CannotInjectValueError - you don't use interfaces without service tokens as injection value.

[joseaburt]

Description

Guys we are having an issue when we pass interface into a constructor of a service that depedens on a super type.

In this image as you can see it is not possible to depend on abstraction it required the same concret class annotated with @Service() annotation.

This is coupling and make testing hard, because for integration testing on my API I need to double the repository to avoid direct database calls or any other 3er party API.

Also it is not possible to change the dependency for a mock one during the testing.

How are you handling this issue guys?

[andvalsol]

Im having this same issue.

[BmpCorp]

If someone still struggles with this, you can achieve it by using factories:

UserRepository is a @Service-decorated concrete class implementing UserRepositoryInterface.

It is also possible to use factory classes instead of functions (docs)