How to use `useFactory` to initialize a provider that depends on asynchronous data obtained from a remote API?

Question

How could you use `useFactory` to initialize a provider that depends on asynchronous data obtained from a remote API?

Accepted Answer

By using an asynchronous promise or function in the factory.

Answer

By directly returning the API result.

Answer

Using the `@Async()` decorator above the factory function.

Answer

By calling a callback function inside `useFactory`.

Question from the Nest.js test