NestJS · Senior · Question 9 of 75

Why can `forwardRef` hide a design problem even when it fixes the error?

1forwardRef disables DI for those providers
✓Correct answer: A module or provider cycle means two parts depend on each other's internals; it complicates initialization order and testing
3forwardRef makes the app slower on every request

Explanation

Typical fixes: extract shared logic into a third module, invert the dependency with events, or depend on an abstraction.

Further reading

NestJS: Circular dependency ↗

Test yourself

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