How To React Router History Listen?

React Router provides a history object that you can use to listen for changes to the current location. Here's an example of how you can use it:

simport { createBrowserHistory } from 'history';

const history = createBrowserHistory();

history.listen((location, action) => {
  // location is an object like window.location
  console.log(action, location.pathname, location.state);
});

history.push('/home', { some: 'state' });

The listen method takes a callback function that will be called any time the current location changes. The callback will receive the new location and a string describing the type of navigation that occurred (e.g. PUSH, REPLACE, POP).

You can also use the listenBefore method to register a callback that will be called before a navigation happens. This can be useful for performing tasks like prompting the user to save unsaved changes before navigating away from a form.

history.listenBefore((location, callback) => {
  // use callback(true) to continue the navigation
  // use callback(false) to cancel the navigation
});

What is React Router History?

React Router is a popular library for handling routing in a React application. It provides a history object that you can use to manage the browser's history and navigate between different routes in your application.

The history object is a global object that you can use to change the current location and trigger a navigation event. It is designed to work with the Router component from React Router, which will update the components rendered in your application in response to changes in the current location.

You can use the history object to navigate to a new location by calling its push method and passing in the new path you want to navigate to. You can also use the replace method to replace the current location in the history stack, or the goBack method to navigate to the previous location.

import { createBrowserHistory } from 'history';

const history = createBrowserHistory();

history.push('/new-location');
history.replace('/replacement-location');
history.goBack();

You can also use the listen method to register a callback function that will be called any time the current location changes. This can be useful for performing tasks like updating the UI or fetching data based on the current route.

Common Issues and Questions About React Router History

Some common issues and questions that come up when working with React Router history include:

  • "TypeError: Cannot read property 'location' of undefined" - This error can occur if you are trying to use the history object outside of a Router component. Make sure that you are only trying to use the history object within a component that has been rendered by a Router component.
  • "Error: You cannot change <Router routes>; it will be ignored" - This error can occur if you are trying to modify the history object from inside a component that is rendered by a Route component. The Route component is a "pure" component, which means that it does not re-render when the history object changes. If you want to trigger a navigation event from within a Route component, you can use the useHistory hook to get access to the history object.
  • "Error: You should not use <Link> outside a <Router>" - This error can occur if you are trying to use the Link component from React Router outside of a Router component. Make sure that you are only trying to use the Link component within a component that has been rendered by a Router component.
  • "How do I get the current location?" - To get the current location, you can use the location property of the history object. For example: history.location.pathname. You can also use the useLocation hook to get the current location within a functional component.
  • "How do I get the current query string parameters?" - To get the current query string parameters, you can use the search property of the location object. This property will contain the raw query string, which you can parse using a library like query-string. For example:
import queryString from 'query-string';

const params = queryString.parse(history.location.search);

https://stackoverflow.com/questions/70646421/how-to-listen-for-route-change-in-react-router-dom-v6

https://v5.reactrouter.com/web/api/history


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