One App 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.
One App Router was forked from react-router@3 and is being uplifted to work with react@17.
The reason for forking react-router@3, rather than switching to a different router or upgrading to a newer version, is due to the coupling of react-router@3's API with One App, Holocron and existing One App modules.
We want to ensure that One App will be compatible with react@17, in its current state react-router@3 relies on React's legacy context API, which will be removed in react@17, as well as legacy UNSAFE lifecycle methods.
Updating to the new context API would be considered a breaking change as react-router would no longer be compatible with older versions of react@<16.3.0. The react-router project has already moved to v5 therefore it is not possible to make any breaking changes to react-router@3.
We will evaluate moving to react-router@6 if it matches our use case in the future.
This is not meant to be a generic standalone Routing library but one which will be tailored for use with the One ecosystem.
Want to get paid for your contributions to one-app-router?
Send your resume to oneamex.careers@aexp.com
- Keeps your UI in sync with the URL
- Lazy code loading
- Dynamic route matching
- Location transition handling
$ npm install @americanexpress/one-app-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 '@americanexpress/one-app-router'
// not using an ES6 transpiler
var Router = require('@americanexpress/one-app-router').Router
var Route = require('@americanexpress/one-app-router').Route
var Link = require('@americanexpress/one-app-router').Linkimport React from 'react';
import { render } from 'react-dom';
import { Router, Route, Link, browserHistory } from '@americanexpress/one-app-router';
function App() {/*...*/}
function About() {/*...*/}
function NoMatch() {/*...*/}
async function getUsersFragment() {/*...*/}
async function findUserById() {/*...*/}
function Users({ children }) {
const [users, setUsers] = React.useState([]);
React.useEffect(() => {
getUsersFragment().then(setUsers);
}, []);
return (
<div>
<h1>Users</h1>
<div className="master">
<ul>
{/* use Link to route around the app */}
{users.map(user => (
<li key={user.id}>
<Link to={`/user/${user.id}`}>{user.name}</Link>
</li>
))}
</ul>
</div>
<div className="detail">
{children}
</div>
</div>
);
}
function User({ params }) {
const [user, setUser] = React.useState(null);
React.useEffect(() => {
findUserById(params.userId).then(setUser);
}, []);
return user && (
<div>
<h2>{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.
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Please feel free to open pull requests and see CONTRIBUTING.md to learn how to get started contributing.
Any contributions made under this project will be governed by the Apache 2.0 License.
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