server.js

"use strict";

import express from "express";

var routes = require("./common");
var app = express()

import { renderToString } from 'react-dom/server'
import { match, RoutingContext } from 'react-router'

var React = require("react");

var StateLoader = require("./lib/StateLoader");

import { createMemoryHistory } from 'history'
const history = createMemoryHistory();

app.use('/', function(req, res){
    const location = history.createLocation(req.url);

    match({ routes, location: location }, (error, redirectLocation, renderProps) => {
        if (error) {
            res.status(500).send(error.message)
        } else if (redirectLocation) {
            res.redirect(302, redirectLocation.pathname + redirectLocation.search)
        } else if (renderProps) {
            StateLoader.loadPrerenderStateFromServer();
            res.status(200).send(renderToString(<RoutingContext {...renderProps} />))
        } else {
            res.send(404, 'Not found')
        }
    })
});

app.listen(3333)