Passing application object to controllers in LoopBack 4

Question

In the LoopBack 3 docs, it was possible to pass the application object in [model].app (e.g. Book.app).

How can I access the application object in the same way in LoopBack 4?

I'm trying to dynamically (at runtime) create a controller from another controller:

app.controller(BookController);

Answer 1

It is possible to use constructor dependency injection on any class that's binded to the lb4 app:

constructor(
    @inject(CoreBindings.APPLICATION_INSTANCE) app: Application,
) {}

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Further reference

• Binding key API reference
• Identical GitHub issue