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react-router

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react-router

Declarative routing for React

    6.22.1latest
    GitHub
    npm

Version published
Maintainers
3
Weekly downloads
8,730,058
decreased by-13.93%

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Package description

What is react-router?

The react-router npm package is a declarative routing library for React, allowing you to add navigation functionality to your React applications. It enables you to handle URL routing, match routes to your React components, and manage navigation state in a single-page application (SPA) environment.

What are react-router's main functionalities?

Basic Routing

This code demonstrates how to set up basic routing in a React application using react-router. It includes navigation links and route components that render different components based on the URL path.

import { BrowserRouter as Router, Route, Link } from 'react-router-dom';

function App() {
  return (
    <Router>
      <div>
        <nav>
          <ul>
            <li>
              <Link to='/'>Home</Link>
            </li>
            <li>
              <Link to='/about'>About</Link>
            </li>
          </ul>
        </nav>

        <Route exact path='/' component={Home} />
        <Route path='/about' component={About} />
      </div>
    </Router>
  );
}

function Home() {
  return <h2>Home</h2>;
}

function About() {
  return <h2>About</h2>;
}

Dynamic Routing

This code snippet shows how to implement dynamic routing with path parameters. The User component will render with the appropriate user ID based on the URL.

import { BrowserRouter as Router, Route, Link } from 'react-router-dom';

function App() {
  return (
    <Router>
      <div>
        <ul>
          <li>
            <Link to='/users/1'>User 1</Link>
          </li>
          <li>
            <Link to='/users/2'>User 2</Link>
          </li>
        </ul>

        <Route path='/users/:id' component={User} />
      </div>
    </Router>
  );
}

function User({ match }) {
  return <h2>User ID: {match.params.id}</h2>;
}

Nested Routing

Nested routing allows you to create routes within routes. This example shows a Layout component with a nested Dashboard route.

import { BrowserRouter as Router, Route, Link, Switch } from 'react-router-dom';

function App() {
  return (
    <Router>
      <Route path='/' component={Layout} />
    </Router>
  );
}

function Layout({ match }) {
  return (
    <div>
      <nav>
        <Link to={`${match.url}dashboard`}>Dashboard</Link>
      </nav>
      <Switch>
        <Route path={`${match.path}dashboard`} component={Dashboard} />
      </Switch>
    </div>
  );
}

function Dashboard() {
  return <h2>Dashboard</h2>;
}

Protected Routes

Protected routes are used to restrict access to certain parts of your application. This example shows a route that renders a component only if the user is authenticated, otherwise it redirects to a login page.

import { BrowserRouter as Router, Route, Redirect } from 'react-router-dom';

function App() {
  return (
    <Router>
      <Route path='/protected' render={() => (
        isAuthenticated() ? (
          <ProtectedComponent />
        ) : (
          <Redirect to='/login' />
        )
      )} />
    </Router>
  );
}

function isAuthenticated() {
  // Authentication logic here
  return true;
}

function ProtectedComponent() {
  return <h2>Protected</h2>;
}

Other packages similar to react-router

Readme

Source

React Router

The react-router package is the heart of React Router and provides all the core functionality for both react-router-dom and react-router-native.

If you're using React Router, you should never import anything directly from the react-router package, but you should have everything you need in either react-router-dom or react-router-native. Both of those packages re-export everything from react-router.

If you'd like to extend React Router and you know what you're doing, you should add react-router as a peer dependency, not a regular dependency in your package.

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Last updated on 16 Feb 2024

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