dev-server.js

var path = require('path')
var express = require('express')
var webpack = require('webpack')
var config = require('../config')
var proxyMiddleware = require('http-proxy-middleware')
var webpackConfig = process.env.NODE_ENV === 'testing'
	? require('./webpack.prod.conf')
	: require('./webpack.dev.conf')

// default port where dev server listens for incoming traffic
var port = process.env.PORT || config.dev.port
// Define HTTP proxies to your custom API backend
// https://github.com/chimurai/http-proxy-middleware
var proxyTable = config.dev.proxyTable

var app = express()

var appData = require('../data.json');
var seller = appData.seller;
var goods = appData.goods;
var ratings = appData.ratings;

var apiRoutes = express.Router();

apiRoutes.get('/seller', function (req, res) {
	res.json({
		errno: 0,
		data: seller
	});
});

apiRoutes.get('/goods', function (req, res) {
	res.json({
		errno: 0,
		data: goods
	});
});

apiRoutes.get('/ratings', function (req, res) {
	res.json({
		errno: 0,
		data: ratings
	});
});

app.use('/api', apiRoutes)

var compiler = webpack(webpackConfig)

var devMiddleware = require('webpack-dev-middleware')(compiler, {
	publicPath: webpackConfig.output.publicPath,
	stats: {
		colors: true,
		chunks: false
	}
})

var hotMiddleware = require('webpack-hot-middleware')(compiler)
// force page reload when html-webpack-plugin template changes
compiler.plugin('compilation', function (compilation) {
	compilation.plugin('html-webpack-plugin-after-emit', function (data, cb) {
		hotMiddleware.publish({action: 'reload'})
		cb()
	})
})

// proxy api requests
Object.keys(proxyTable).forEach(function (context) {
	var options = proxyTable[context]
	if (typeof options === 'string') {
		options = {target: options}
	}
	app.use(proxyMiddleware(context, options))
})

// handle fallback for HTML5 history API
app.use(require('connect-history-api-fallback')())

// serve webpack bundle output
app.use(devMiddleware)

// enable hot-reload and state-preserving
// compilation error display
app.use(hotMiddleware)

// serve pure static assets
var staticPath = path.posix.join(config.dev.assetsPublicPath, config.dev.assetsSubDirectory)
app.use(staticPath, express.static('./static'))

module.exports = app.listen(port, function (err) {
	if (err) {
		console.log(err)
		return
	}
	console.log('Listening at http://localhost:' + port + '\n')
})