README.md

React Router

React Router is a complete routing library for React.

React Router keeps your UI in sync with the URL. It has a simple API with powerful features like lazy code loading, dynamic route matching, and location transition handling built right in. Make the URL your first thought, not an after-thought.

4.0 is here!

The next version of React Router (4.0) has been released! Check out the master branch.

4.0 Documentation

Docs & Help

• Tutorial – do this first!
• Guides and API docs (v2, v3)
• Troubleshooting guide
• Changelog
• Stack Overflow
• CodePen boilerplate for bug reports

Older Versions:

• 0.13.x - docs / guides / code / upgrade guide
• 1.0.x - docs / code / upgrade guide

For questions and support, please visit our channel on Reactiflux or Stack Overflow.

Browser Support

We support all browsers and environments where React runs.

Installation

Using npm:

$ npm install --save react-router

Then with a module bundler like webpack that supports either CommonJS or ES2015 modules, use as you would anything else:

// using an ES6 transpiler, like babel
import { Router, Route, Link } from 'react-router'

// not using an ES6 transpiler
var Router = require('react-router').Router
var Route = require('react-router').Route
var Link = require('react-router').Link

The UMD build is also available on unpkg:

<script src="https://unpkg.com/react-router/umd/ReactRouter.min.js"></script>

You can find the library on window.ReactRouter.

What's it look like?

import React from 'react'
import { render } from 'react-dom'
import { Router, Route, Link, browserHistory } from 'react-router'

const App = React.createClass({/*...*/})
const About = React.createClass({/*...*/})
const NoMatch = React.createClass({/*...*/})

const Users = React.createClass({
  render() {
    return (
      <div>
        <h1>Users</h1>
        <div className="master">
          <ul>
            {/* use Link to route around the app */}
            {this.state.users.map(user => (
              <li key={user.id}><Link to={`/user/${user.id}`}>{user.name}</Link></li>
            ))}
          </ul>
        </div>
        <div className="detail">
          {this.props.children}
        </div>
      </div>
    )
  }
})

const User = React.createClass({
  componentDidMount() {
    this.setState({
      // route components are rendered with useful information, like URL params
      user: findUserById(this.props.params.userId)
    })
  },

  render() {
    return (
      <div>
        <h2>{this.state.user.name}</h2>
        {/* etc. */}
      </div>
    )
  }
})

// Declarative route configuration (could also load this config lazily
// instead, all you really need is a single root route, you don't need to
// colocate the entire config).
render((
  <Router history={browserHistory}>
    <Route path="/" component={App}>
      <Route path="about" component={About}/>
      <Route path="users" component={Users}>
        <Route path="/user/:userId" component={User}/>
      </Route>
      <Route path="*" component={NoMatch}/>
    </Route>
  </Router>
), document.getElementById('root'))

See more in the Introduction, Guides, and Examples.

Versioning and Stability

We want React Router to be a stable dependency that’s easy to keep current. We take the same approach to versioning as React.js itself: React Versioning Scheme.

Thanks

Thanks to our sponsors for supporting the development of React Router.

React Router was initially inspired by Ember's fantastic router. Many thanks to the Ember team.

Also, thanks to BrowserStack for providing the infrastructure that allows us to run our build in real browsers.