FAQ: Redux Middleware and Thunks - Using createSlice() with Async Action Creators

This community-built FAQ covers the “Using createSlice() with Async Action Creators” exercise from the lesson “Redux Middleware and Thunks”.

Paths and Courses
This exercise can be found in the following Codecademy content:

Front-End Development
Create an Advanced Web App with React and Redux
Full-Stack Engineer
Front-End Engineer
Front-End Development

Async Actions with Middleware and Thunks
Learn Redux: Middleware and Thunks
Learn Redux

FAQs on the exercise Using createSlice() with Async Action Creators

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When building a simple example on my computer I received an error message that the extra reducers property must added using “builder callback notation”, and not as an object the way it is presented in this lesson. The error message contained links to the documentation (e.g. createAsyncThunk | Redux Toolkit) and the changes were relatively straightforward. Passing along to other users who encounter this error.

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Why have a seperate field called “extrareducers”? why not just add them to the reducers object? is there some different logic ran on extrareducers?