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cherrytree-for-react

v1.1.8

Published

An adapter for cherrytree router for using it with React

Downloads

21

Readme

cherrytree-for-react

Use the cherrytree router in your React applications. This project provides a React component that you should put at the root of your render tree. The component handles hot reloading.

Usage

$ npm install --save react cherrytree cherrytree-for-react
import React from 'react'

import createCherrytree from 'cherrytree'
import { Router, Link } from 'cherrytree-for-react'
import * as components from './components'

const {
  Application,
  About,
  GithubStargazers,
  GithubRepo,
  GithubUser
} = components

const cherrytree = createCherrytree().map(routes)

export default class App extends React.Component {
  render () {
    return (
      <Router router={cherrytree} />
    )
  }
}

function routes (route) {
  route('app', { path: '/', component: Application }, () => {
    route('about', { path: 'about', component: About })
    route('stargazers', { path: 'stargazers', component: GithubStargazers }, () => {
      route('repo', { path: ':username/:repo', component: GithubRepo })
      route('user', { path: ':username', component: GithubUser })
    })
  })
}

The router will be injected into the context of the render tree. You can use it to generate links or initiate transitions, e.g.

let transition = this.context.router.transitionTo('repo', {username: 'facebook', repo: 'react'})
let url = this.context.router.generate('repo', {username: 'facebook', repo: 'react'})

Browse cherrytree repo for more docs and examples.

Generating Links

<Link> components are used to create an <a> element that links to a route.

Import first

import { Link } from 'cherrytree-for-react'

For example, assuming you have the following route:

route('showPost', {path: '/posts/:postID', component: Post})

You could use the following component to link to that route:

<Link to='showPost' params={{ postId: post.id }} query={{ show: true }} />

To create a link with full (external or local) url, use the href attribute instead

<Link href={`/posts/${post.id}`} />

Server Side Usage

This component can also be used in the server side, in that case, an already started cherrytree instance needs to be passed in, e.g.

// start listening
cherrytree.listen(new cherrytree.MemoryLocation('/foo/bar')).then(function () {
  React.renderToString(<Router router={cherrytree} />)
})

In this case, the <Router> component will detect that the router has already been started and will not call the asynchronous listen function.

For a full, working server side example, see the cherrytree/examples/server-side-example.

Why not a cherrytree middleware?

The typical extension point for cherrytree is the middleware mechanism. However, wrapping cherrytree in a React component is what enables the hot reloading functionality. A new cherrytree instance can be swapped in via the prop into the router during the hot reloads. The router is then kept in the component state meaning we have a reference to the old instance and can clean up using cherrytree.destroy() between the hot reloads. The middleware is still used as a way to update the state of the Router component that triggers the rerender.

Examples

There are currently two examples: