express-template/bin/www

#!/usr/bin/env node

/**
 * Module dependencies.
 */
 const {resolve} = require('path')
 require('dotenv').config({ path:resolve(__dirname,'../.env') })
 var app = require(resolve(__dirname,'../app'))
 var debug = require('debug')('express-im:server')
 var http = require('http')
 const event = require(resolve(__dirname,'../event'))
 
 /**
  * Get port from environment and store in Express.
  */
 
 var port = normalizePort(process.env.PORT || '3000')
 app.set('port', port)
 
 /**
  * Create HTTP server.
  */
 
 var server = http.createServer(app)
 
 /**
  * Listen on provided port, on all network interfaces.
  */
 event.on('typeorm-connection',()=>{
   server.listen(port,()=>{
     console.log(`服务启动成功，监听端口${port}`)
   })
 })
 
 server.on('error', onError)
 server.on('listening', onListening)
 
 /**
  * Normalize a port into a number, string, or false.
  */
 
 function normalizePort (val) {
   var port = parseInt(val, 10)
 
   if (isNaN(port)) {
     // named pipe
     return val
   }
 
   if (port >= 0) {
     // port number
     return port
   }
 
   return false
 }
 
 /**
  * Event listener for HTTP server "error" event.
  */
 
 function onError (error) {
   if (error.syscall !== 'listen') {
     throw error
   }
 
   var bind = typeof port === 'string'
     ? 'Pipe ' + port
     : 'Port ' + port
 
   // handle specific listen errors with friendly messages
   switch (error.code) {
   case 'EACCES':
     console.error(bind + ' requires elevated privileges')
     process.exit(1)
     break
   case 'EADDRINUSE':
     console.error(bind + ' is already in use')
     process.exit(1)
     break
   default:
     throw error
   }
 }
 
 /**
  * Event listener for HTTP server "listening" event.
  */
 
 function onListening () {
   var addr = server.address()
   var bind = typeof addr === 'string'
     ? 'pipe ' + addr
     : 'port ' + addr.port
   debug('Listening on ' + bind)
 }