unable to connect to the socket server

[albatomuch]

unable to connect to the socket server

[jumperchen]

FYI: https://github.com/rikulo/socket.io-client-dart#version-info

[albatomuch]

when i use any v2, the socket server is not detected at all.

[jumperchen]

To work with socket.io dart client, you have to know which application type you are using, such as Flutter app, Flutter Web app, Pure Dart Client app, or Pure Dart app. Each different type requires a different connecting argument, which you can find in the README.md file in the repo. Even if the connecting arguments are correct, you have to setup the http server config (such as Apache HTTP server or Nginx) to make it work with socket.io connection, such as WebSocket, or pure HTTP connection.
The pure test code can work in the pure Dart app or pure Dart client app, please take a look at Dart client to access NodeJs server and this Flutter example can work too.

[albatomuch]

what would be the ideal setup if I am using using socket_io_client on flutter app and now shifted to pure dart for server side using socket_io 1.0.1? I am still getting the same error message [ping timeout, null] .

[jumperchen]

Dart server doesn't support v2 version and Flutter app (not web) can only work with websocket transport.

[ravikinharavi]

Dart server doesn't support v2 version and Flutter app (not web) can only work with websocket transport.

hello sir my socket.on(message not working. import 'package:flutter/material.dart';
import 'package:socket_io_client/socket_io_client.dart' as IO;

class checking extends StatefulWidget {
const checking({Key? key}) : super(key: key);

@OverRide
State createState() => _checkingState();
}

class _checkingState extends State {
late IO.Socket socket;

@OverRide
void initState() {
super.initState();
initSocket();
}

var k = "click";

Future initSocket() async {
socket = IO.io("http://13.126.94.67:1000", <String, dynamic>{
'autoConnect': true,
'transports': ['websocket'],
});

 socket.onConnect((_) {
  print('Connection established');

  // Emit the "connected" event after connecting
  socket.emit('connected', {
    'livestreamId': "651674a1907e321ab7acb78a",
    'coursefieldId': "649eb48d8bfdc575a18c64c6",
  });



  socket.on('connected', (data) {
    print('Response from connected event: ${data["roomId"]}');
    socket.emit('joinRoom', {
      'roomId': data["roomId"],
    });
  });
});

socket.onDisconnect((_) => print('Connection Disconnection'));
socket.onConnectError((err) => print(err));
socket.onError((err) => print(err));

// Listen for "message" event
socket.on("message", (data) {
  print("Received message: $data");
});

var test =socket;
// Connect to the server
socket.connect();
}

@OverRide
Widget build(BuildContext context) {
return Scaffold(
body: Center(
child: ElevatedButton(
onPressed: () {
print(socket.connected);

        // Emit the "message" event here
        socket.emit("message", {
          "livestreamId": "651674a1907e321ab7acb78a",
          "coursefieldId": "649eb48d8bfdc575a18c64c6",
          "studentId": "64d4804b4c3c39e38865b041",
          "subjectId": "649eb5718bfdc575a18c64da",
          "message": "ravi msg emmit",
          "roomId": "S_9ShObYjjcePoBGAAGV",
        });

        print(socket.connected);
      },
      child: Text("$k"),
    ),
  ),
);

}
}