81 lines
1.5 KiB
JavaScript
Executable File
81 lines
1.5 KiB
JavaScript
Executable File
#!/usr/bin/env node
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/**
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* Module dependencies
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*/
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const app = require('../app')
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const http = require('http')
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/**
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* Get port from environment and store in Express
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*/
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const port = normalizePort(process.env.PORT || '3000')
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app.set('port', port)
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/**
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* Create HTTP server
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*/
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const server = http.createServer(app)
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/**
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* Listen on provided port, on all network interfaces
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*/
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server.listen(port)
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server.on('error', onError)
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server.on('listening', onListening)
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/**
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* Normalize a port into a number, string, or false
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*/
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function normalizePort (val) {
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const port = parseInt(val, 10)
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if (isNaN(port)) {
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// Named pipe
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return val
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}
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if (port >= 0) {
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// Port number
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return port
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}
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return false
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}
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/**
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* Event listener for HTTP server "error" event
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*/
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function onError (error) {
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if (error.syscall !== 'listen') {
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throw error
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}
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const bind = typeof port === 'string'
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? 'Pipe ' + port
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: 'Port ' + port
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// Handle specific listen errors with friendly messages
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switch (error.code) {
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case 'EACCES':
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console.error(bind + ' requires elevated privileges')
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process.exit(1)
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break
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case 'EADDRINUSE':
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console.error(bind + ' is already in use')
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process.exit(1)
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break
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default:
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throw error
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}
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}
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/**
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* Event listener for HTTP server "listening" event
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*/
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function onListening () {
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const addr = server.address()
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const uri = typeof addr === 'string' ? addr : `http://localhost:${addr.port}`
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console.log(`Listening on ${uri}`)
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}
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