change backend port

Author: votrungquan1999

packages/backend/express/bin/www

@@ -4,84 +4,84 @@
  * Module dependencies.
  */
 
-const app = require('../app')
-const debug = require('debug')('express:server')
-const http = require('http')
+const app = require('../app');
+const debug = require('debug')('express:server');
+const http = require('http');
 
 /**
  * Get port from environment and store in Express.
  */
 
-const port = normalizePort(process.env.PORT || '3000')
-app.set('port', port)
-console.log(`Your express app is running on http://localhost:${port}`)
+const port = normalizePort(process.env.PORT || '3001');
+app.set('port', port);
+console.log(`Your express app is running on http://localhost:${port}`);
 
 /**
  * Create HTTP server.
  */
 
-const server = http.createServer(app)
+const server = http.createServer(app);
 
 /**
  * Listen on provided port, on all network interfaces.
  */
 
-server.listen(port)
-server.on('error', onError)
-server.on('listening', onListening)
+server.listen(port);
+server.on('error', onError);
+server.on('listening', onListening);
 
 /**
  * Normalize a port into a number, string, or false.
  */
 
 function normalizePort(val) {
-  const port = parseInt(val, 10)
+	const port = parseInt(val, 10);
 
-  if (isNaN(port)) {
-    // named pipe
-    return val
-  }
+	if (isNaN(port)) {
+		// named pipe
+		return val;
+	}
 
-  if (port >= 0) {
-    // port number
-    return port
-  }
+	if (port >= 0) {
+		// port number
+		return port;
+	}
 
-  return false
+	return false;
 }
 
 /**
  * Event listener for HTTP server "error" event.
  */
 
 function onError(error) {
-  if (error.syscall !== 'listen') {
-    throw error
-  }
-
-  const 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
-  }
+	if (error.syscall !== 'listen') {
+		throw error;
+	}
+
+	const 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() {
-  const addr = server.address()
-  const bind = typeof addr === 'string' ? 'pipe ' + addr : 'port ' + addr.port
-  debug('Listening on ' + bind)
+	const addr = server.address();
+	const bind = typeof addr === 'string' ? 'pipe ' + addr : 'port ' + addr.port;
+	debug('Listening on ' + bind);
 }