Question 1

How to implement redux-requests in a React Redux app?

Accepted Answer

Install the package via npm, add `requestsReducer` to your root reducer, and include `createRequestMiddleware` in your middleware chain. Use the `attemptRequest` helper or manually add `meta.httpRequest` to actions for deduplication, as demonstrated in the README examples.

Question 2

redux-requests vs redux-thunk for handling API calls?

Accepted Answer

redux-requests complements redux-thunk by adding deduplication on top of it; while redux-thunk handles async logic, redux-requests prevents duplicate requests. You can use both together, but redux-requests doesn't replace thunks for other async operations.

Question 3

Does redux-requests cache API responses?

Accepted Answer

No, redux-requests does not cache responses; it only tracks in-flight requests to prevent duplicates. For caching, you need to implement it separately in your reducers or use another library like React Query.

Question 4

How does redux-requests handle request cancellation?

Accepted Answer

It cancels duplicate requests at the dispatch level: the middleware checks if a request with the same URL is pending and returns undefined for the begin action dispatch, preventing the actual HTTP call from being made.

Question 5

Is redux-requests compatible with Redux Toolkit?

Accepted Answer

Yes, you can integrate it by adding the middleware to the configureStore middleware array and including the reducer in the combined reducers, but note that Redux Toolkit offers alternatives like RTK Query for more feature-rich data fetching.

Question 6

What are the alternatives to redux-requests for preventing duplicate requests?

Accepted Answer

Alternatives include libraries like React Query, SWR, or RTK Query, which provide deduplication along with caching and other features, or custom implementations using Redux sagas or manual state tracking in actions.

Question 7

How to test actions that use redux-requests middleware?

Accepted Answer

Mock the Redux store with the middleware applied and ensure actions containing `meta.httpRequest` are handled correctly; you may need to simulate dispatch behavior and check that duplicate requests are prevented as expected.

redux-requests

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