Larbi Gharib | e9af973 | 2021-03-31 15:08:01 +0100 | [diff] [blame] | 1 | #!/usr/bin/env node |
| 2 | |
| 3 | /** |
| 4 | * Module dependencies. |
| 5 | */ |
| 6 | |
| 7 | var app = require('../app'); |
| 8 | var debug = require('debug')('express-react:server'); |
| 9 | var http = require('http'); |
| 10 | |
| 11 | /** |
| 12 | * Get port from environment and store in Express. |
| 13 | */ |
| 14 | |
| 15 | var port = normalizePort(process.env.PORT || '3000'); |
| 16 | app.set('port', port); |
| 17 | |
| 18 | /** |
| 19 | * Create HTTP server. |
| 20 | */ |
| 21 | |
| 22 | var server = http.createServer(app); |
| 23 | |
| 24 | /** |
| 25 | * Listen on provided port, on all network interfaces. |
| 26 | */ |
| 27 | |
| 28 | server.listen(port); |
| 29 | server.on('error', onError); |
| 30 | server.on('listening', onListening); |
| 31 | |
| 32 | /** |
| 33 | * Normalize a port into a number, string, or false. |
| 34 | */ |
| 35 | |
| 36 | function normalizePort(val) { |
| 37 | var port = parseInt(val, 10); |
| 38 | |
| 39 | if (isNaN(port)) { |
| 40 | // named pipe |
| 41 | return val; |
| 42 | } |
| 43 | |
| 44 | if (port >= 0) { |
| 45 | // port number |
| 46 | return port; |
| 47 | } |
| 48 | |
| 49 | return false; |
| 50 | } |
| 51 | |
| 52 | /** |
| 53 | * Event listener for HTTP server "error" event. |
| 54 | */ |
| 55 | |
| 56 | function onError(error) { |
| 57 | if (error.syscall !== 'listen') { |
| 58 | throw error; |
| 59 | } |
| 60 | |
| 61 | var bind = typeof port === 'string' |
| 62 | ? 'Pipe ' + port |
| 63 | : 'Port ' + port; |
| 64 | |
| 65 | // handle specific listen errors with friendly messages |
| 66 | switch (error.code) { |
| 67 | case 'EACCES': |
| 68 | console.error(bind + ' requires elevated privileges'); |
| 69 | process.exit(1); |
| 70 | break; |
| 71 | case 'EADDRINUSE': |
| 72 | console.error(bind + ' is already in use'); |
| 73 | process.exit(1); |
| 74 | break; |
| 75 | default: |
| 76 | throw error; |
| 77 | } |
| 78 | } |
| 79 | |
| 80 | /** |
| 81 | * Event listener for HTTP server "listening" event. |
| 82 | */ |
| 83 | |
| 84 | function onListening() { |
| 85 | var addr = server.address(); |
| 86 | var bind = typeof addr === 'string' |
| 87 | ? 'pipe ' + addr |
| 88 | : 'port ' + addr.port; |
| 89 | debug('Listening on ' + bind); |
| 90 | } |