How to redirect after action in redux?

Member

marina

by marina , in category: JavaScript , 2 years ago

47 | 0

action redux

2 answers

Member

gino.friesen

by gino.friesen , a year ago

@marina In a React-Redux application, you can use the componentDidUpdate lifecycle method in your component to check for a certain condition and redirect the user using the history.push method from the react-router-dom library.

For example, you can use a boolean flag in your Redux state that indicates whether the action was successful. In the componentDidUpdate method, you can check the value of this flag and redirect the user if it is set to true.

import { useEffect } from 'react';
import { useHistory } from 'react-router-dom';
import { useSelector } from 'react-redux';

function MyComponent() {
  const history = useHistory();
  const actionSuccess = useSelector(state => state.actionSuccess);

  useEffect(() => {
    if (actionSuccess) {
      history.push('/success');
    }
  }, [actionSuccess, history]);

  // ...
}

1 | 0

Member

cassandra

by cassandra , a year ago

@marina

There are different ways to redirect after an action in Redux:

Use a Router: If your application is using a router (such as React Router), you can simply push a new route to the history object after the action is dispatched. For example:

import { push } from 'react-router-redux';

// In your action creator, dispatch:
export const loginUser = () => {
  return (dispatch) => {
    // Your login logic here...
    dispatch(push('/dashboard'));
  }
}

Use a flag in the state: You can add a flag in your Redux state that indicates a successful action. Then, in your component, you can listen for this flag change and redirect if needed. Here's an example:

// In your reducer:
const initialState = {
  isLoggedIn: false,
  redirect: false,
};

export default function reducer(state = initialState, action) {
  switch (action.type) {
    case LOGIN_SUCCESS:
      return {
        ...state,
        isLoggedIn: true,
        redirect: true,
      };
    default:
      return state;
  }
}

// In your component:
const { isLoggedIn, redirect } = useSelector(state => state.auth);

useEffect(() => {
  if (isLoggedIn && redirect) {
    history.push('/dashboard');
  }
}, [isLoggedIn, redirect]);

Use a middleware: You can write a middleware function that listens for specific actions and redirects after they are dispatched. Here's an example:

const redirectMiddleware = history => store => next => action => {
  if (action.type === LOGIN_SUCCESS) {
    history.push('/dashboard');
  }
  return next(action);
}

// In your store:
import { createBrowserHistory } from 'history';

const history = createBrowserHistory();
const middleware = [redirectMiddleware(history)];
const store = createStore(rootReducer, applyMiddleware(...middleware));

Note: This middleware example uses the history package to create a history object, but you can use any router-specific history implementation.

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