137 lines
3.5 KiB
JavaScript
137 lines
3.5 KiB
JavaScript
/*eslint-disable no-console*/
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const http = require('http')
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const cors = require('cors')
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const throng = require('throng')
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const morgan = require('morgan')
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const express = require('express')
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const devErrorHandler = require('errorhandler')
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const WebpackDevServer = require('webpack-dev-server')
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const { createRequestHandler } = require('express-unpkg')
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const DefaultServerConfig = require('./ServerConfig')
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const { assetsManifest, staticAssets, devAssets, createDevCompiler } = require('./AssetsUtils')
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const { sendHomePage } = require('./MainController')
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const { logStats } = require('./StatsUtils')
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const createRouter = (config = {}) => {
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const router = express.Router()
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router.get('/', sendHomePage)
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if (config.redisURL)
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router.use(logStats(config.redisURL))
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router.use(createRequestHandler(config))
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return router
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}
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const errorHandler = (err, req, res, next) => {
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res.status(500).send('<p>Internal Server Error</p>')
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console.error(err.stack)
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next(err)
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}
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const createServer = (config) => {
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const app = express()
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app.disable('x-powered-by')
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app.use(errorHandler)
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app.use(cors())
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app.use(express.static(config.publicDir, { maxAge: config.maxAge }))
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app.use(assetsManifest(config.manifestFile))
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app.use(staticAssets(config.statsFile))
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app.use(createRouter(config))
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const server = http.createServer(app)
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// Heroku dynos automatically timeout after 30s. Set our
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// own timeout here to force sockets to close before that.
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// https://devcenter.heroku.com/articles/request-timeout
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if (config.timeout) {
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server.setTimeout(config.timeout, (socket) => {
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const message = `Timeout of ${config.timeout}ms exceeded`
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socket.end([
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`HTTP/1.1 503 Service Unavailable`,
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`Date: ${(new Date).toGMTString()}`,
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`Content-Type: text/plain`,
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`Content-Length: ${message.length}`,
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`Connection: close`,
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``,
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message
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].join(`\r\n`))
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})
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}
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return server
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}
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const createDevServer = (config) => {
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const webpackConfig = config.webpackConfig
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const compiler = createDevCompiler(
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webpackConfig,
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`webpack-dev-server/client?http://localhost:${config.port}`
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)
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const server = new WebpackDevServer(compiler, {
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// webpack-dev-middleware options.
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publicPath: webpackConfig.output.publicPath,
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quiet: false,
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noInfo: false,
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stats: {
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// https://webpack.github.io/docs/node.js-api.html#stats-tojson
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assets: true,
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colors: true,
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version: true,
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hash: true,
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timings: true,
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chunks: false
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},
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// webpack-dev-server options.
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contentBase: false,
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setup(app) {
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// This runs before webpack-dev-middleware.
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app.disable('x-powered-by')
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app.use(morgan('dev'))
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}
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})
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// This runs after webpack-dev-middleware.
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server.use(devErrorHandler())
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server.use(express.static(config.publicDir))
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server.use(devAssets(compiler))
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server.use(createRouter(config))
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return server
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}
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const startServer = (serverConfig) => {
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const config = {
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...DefaultServerConfig,
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...serverConfig
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}
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const server = process.env.NODE_ENV === 'production'
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? createServer(config)
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: createDevServer(config)
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server.listen(config.port, () => {
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console.log('Server #%s listening on port %s, Ctrl+C to stop', config.id, config.port)
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})
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}
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module.exports = {
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createServer,
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createDevServer,
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startServer
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}
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if (require.main === module)
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throng({
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start: (id) => startServer({ id }),
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workers: process.env.WEB_CONCURRENCY || 1,
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lifetime: Infinity
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})
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