Render isomorphic React apps and components in Node.

  • Using React Router

Compatible with React Router 5.

An example implementation of the companion package @sequencemedia/react-router-redux-render can be found in react-router-pagination-io.


In Express:

const express = require('express')

const app = express()
const port = 3000

const routes = require('./path/to/routes')

const {
} = require('react-router-render')

app.get('/', ({ url: { path: pathname = '/' } }, res) => res.send(renderToString(routes, pathname)))

app.listen(port, () => console.log(`Express ${port}`))

If React Router matches the pathname to a <Route /> then renderToString returns a string.

If renderToString encounters an error then it throws a 500 Internal Server Error.

If renderToString cannot match the pathname to a <Route /> then it throws a 404 Not Found.

In this package

react-router-render exports three functions:

  1. renderToString
  2. renderToStaticMarkup
  3. render

renderToString generates <html /> including the attributes that React uses in ReactDOM.hydrate(). It implements ReactDOMServer.renderToString().

renderToStaticMarkup doesn't include those attributes. It's useful for using React as a rendering engine for static pages. It implements ReactDOMServer.renderToStaticMarkup().

render executes renderToString but returns a Promise which resolves to a string.

Companion packages

  1. @sequencemedia/react-router-redux-render for React Router apps (with Redux)
  2. @sequencemedia/react-redux-render for React Redux apps (without React Router)
  3. @sequencemedia/react-render for React apps (without React Router or Redux)