Automated Retries with createAsyncThunk
Present a technique for implementing automatic retries in the event of a failure within a createAsyncThunk action.
import { createAsyncThunk } from '@reduxjs/toolkit';
// Helper function to retry an async operation a specified number of times
const retryAsync = async (asyncFunc, args, retries) => {
try {
return await asyncFunc(args);
} catch (error) {
if (retries === 1) throw error;
return await retryAsync(asyncFunc, args, retries - 1);
}
};
// createAsyncThunk with retry logic
export const fetchWithRetry = createAsyncThunk(
'data/fetchWithRetry',
async (arg, { rejectWithValue }) => {
try {
// The actual fetching function and the retry count
return await retryAsync(fetchSomeData, arg, 3);
} catch (error) {
// Handle the final failed attempt
return rejectWithValue(error.message);
}
}
);
// The function you'd like to retry upon failureasync function fetchSomeData(arg) {
// Implementation of the fetching logic goes here
}
This code defines a helper function `retryAsync` which will attempt to run a given async function a specified number of times before throwing an error. The `fetchWithRetry` Thunk uses this helper function to retry fetching data up to 3 times upon failure before giving up and rejecting the value with an error message.