Hello. I have started an express+socketio server with the standard:
var app = express(); var server = http.Server(app); server.listen(3000, () => console.log('listening on *:3000'));
code, but I cannot seem to be able to restart it since I have closed it and reopened. I get
Process crashed with: Error: listen EADDRINUSE: address already in use :::3000 at Server.setupListenHandle [as _listen2] (net.js:1279:14) at listenInCluster (net.js:1327:12) at Server.listen (net.js:1414:7) at evalmachine.<anonymous>:17:8 at Script.runInContext (vm.js:133:20) at Object.runInContext (vm.js:311:6) at evaluate (/run_dir/repl.js:133:14) at ReadStream.<anonymous> (/run_dir/repl.js:116:5) at ReadStream.emit (events.js:198:13) at addChunk (_stream_readable.js:288:12)
If I change the port then it stars but my client is unable to connect as the old version gets connected. So how could I stop the already running version and start the new one?
After you change the port number, you just have to wait for a while, and then you can go back to the original port.
However, I would recommend that you do not even press the start / restart button unless you are making a change to the server. If you are just changing an express route, a socket.io connection, or you change client side, you don't have to restart server. Instead, you should just make a new client, and it should be updated.