Features of Asynchronous Action Creators
- Asynchronous behavior: Actions are dispatched asynchronously, that allows for non-blocking execution.
- External data fetching: Typically used for fetching data from APIs or performing other asynchronous operations.
- Complex state updates: Suitable for scenarios where state changes involve complex computations or asynchronous operations.
- Middleware integration: Often used with middleware like Redux Thunk or Redux Saga to handle asynchronous actions seamlessly.
- Enhanced scalability: Supports scalable application architectures by enabling efficient handling of asynchronous operations without blocking the main thread.
Example: In this sample code there is a flow of asynchronous action creator to understand.
Javascript
// Redux setup import { createStore, applyMiddleware } from 'redux' ; import thunk from 'redux-thunk' ; // Initial state const initialState = { data: null , loading: false }; // Reducer const reducer = (state = initialState, action) => { switch (action.type) { case 'FETCH_DATA_REQUEST' : return { ...state, loading: true }; case 'FETCH_DATA_SUCCESS' : return { ...state, loading: false , data: action.payload }; default : return state; } }; // Create Redux store with thunk middleware const store = createStore(reducer, applyMiddleware(thunk)); // Asynchronous action creator const fetchData = () => { return async (dispatch) => { dispatch({ type: 'FETCH_DATA_REQUEST' }); try { // Simulating API call const response = await fetch( 'https://api.example.com/data' ); const data = await response.json(); dispatch({ type: 'FETCH_DATA_SUCCESS' , payload: data }); } catch (error) { // Handle error console.error( 'Error fetching data:' , error); } }; }; // Dispatch the asynchronous action store.dispatch(fetchData()); // Check the initial state console.log(store.getState()); // Output: { data: null, loading: true } |
What is the difference between synchronous and asynchronous action creators?
In web development, Redux has become very popular for managing application state. Action creators play an important role in Redux, which helps the dispatching of actions to update the state.
In this article, we will understand the difference between synchronous and asynchronous action creators.
Table of Content
- Synchronous Action Creators
- Features of Synchronous Action Creators
- Asynchronous Action Creators
- Features of Asynchronous Action Creators
- Differences Between Synchronous and Asynchronous Action Creators
- Conclusion