How can I use Redux Toolkit Query for advanced data fetching?

How can I use Redux Toolkit Query for advanced data fetching?

Redux Toolkit Query simplifies data fetching with powerful features. You can define endpoints, manage cache, and handle mutations easily.

Can you show me how to set up an API slice?

Sure! You can create an API slice using createApi from Redux Toolkit. Define your base query and endpoints like this:

import { createApi, fetchBaseQuery } from '@reduxjs/toolkit/query/react';

const apiSlice = createApi({
  reducerPath: 'api',
  baseQuery: fetchBaseQuery({ baseUrl: '/api' }),
  endpoints: (builder) => ({
    getPosts: builder.query({
      query: () => 'posts',
    }),
  }),
});

How do I handle caching and invalidation?

You can manage caching by using the keepUnusedDataFor option in your endpoint definitions. For invalidation, you can use the invalidateTags feature to refetch data when certain actions occur.

What about handling mutations?

For mutations, you can define them in the same API slice. Use builder.mutation to create a mutation endpoint, and you can trigger it with hooks like useCreatePostMutation.