cannot connect to local network channel ws://192.168.1.22:1024'

[NTMS2017]

Hi,

I try to connect to my local network socket services via my local wifi and I am failed. I have server that has a socket services for all system. I can access my local network socket services from internet. The configuration its okay. I can telnet and do the job. Now I want to implement such an action to my personal Flutter Mobile app. I am getting this error. I only change your code to ws://192.168.1.92:1024. If I use flutter_websocket examples it connects and I don't get a error. But once I send data to server I get no response.

Hi,

I create a Flutter App. I made a demo aqueduct restful web api. Now I need help as follows:

1. How to connect my Flutter Mobile App to my aqueduct restful api? 2) How to connect from my aqueduct restful api to internal socket api?

For second question: Manually I can use telnet and connect socket api and send and receive data with using socket internal format. I need to connect to socket from my aqueduct. Meaning is that my aqueduct backend will connect to socket and front will use restful api.

My manual telnet Example:

Last login: Tue Jun 26 15:01:44 on ttys000
Niyazis-MBP:~ niyazitoros$ telnet
telnet> telnet 192.168.1.22 1024
Trying 192.168.1.22...
Connected to 192.168.1.22.
Escape character is '^]'.
Q101:_:49785:_:*************
1:_:2:_:119351:_:NİYAZİ TOROS

Any help please.

@OverRide
void initState() {
super.initState();
channel = IOWebSocketChannel.connect('ws://192.168.1.92:1024');
controller = TextEditingController();
channel.stream.listen((data) => setState(() => list.add(data)));
}

Launching lib/main.dart on Android SDK built for x86 in debug mode...
Initializing gradle...
Resolving dependencies...
Running 'gradlew assembleDebug'...
Built build/app/outputs/apk/debug/app-debug.apk.
Installing build/app/outputs/apk/app.apk...
I/FlutterActivityDelegate(12905): onResume setting current activity to this
E/eglCodecCommon(12905): glUtilsParamSize: unknow param 0x00008824
Syncing files to device Android SDK built for x86...
D/EGL_emulation(12905): eglMakeCurrent: 0xa75042a0: ver 3 0 (tinfo 0xa7503320)
D/ (12905): HostConnection::get() New Host Connection established 0xa7523900, tid 12944
D/EGL_emulation(12905): eglMakeCurrent: 0xb0b32b20: ver 3 0 (tinfo 0xa75032b0)
E/flutter (12905): [ERROR:topaz/lib/tonic/logging/dart_error.cc(16)] Unhandled exception:
E/flutter (12905): WebSocketChannelException: WebSocketChannelException: HttpException: Invalid response line, uri = http://192.168.1.22:1024
E/flutter (12905): #0 new IOWebSocketChannel._withoutSocket. (package:web_socket_channel/io.dart:83:24)
E/flutter (12905): #1 _invokeErrorHandler (dart:async/async_error.dart:13:29)
E/flutter (12905): #2 _HandleErrorStream._handleError (dart:async/stream_pipe.dart:286:9)
E/flutter (12905): #3 _ForwardingStreamSubscription._handleError (dart:async/stream_pipe.dart:168:13)
E/flutter (12905): #4 _RootZone.runBinaryGuarded (dart:async/zone.dart:1328:10)
E/flutter (12905): #5 _BufferingStreamSubscription._sendError.sendError (dart:async/stream_impl.dart:355:15)
E/flutter (12905): #6 _BufferingStreamSubscription._sendError (dart:async/stream_impl.dart:373:16)
E/flutter (12905): #7 _BufferingStreamSubscription._addError (dart:async/stream_impl.dart:272:7)
E/flutter (12905): #8 _SyncStreamController._sendError (dart:async/stream_controller.dart:767:19)
E/flutter (12905): #9 _StreamController._addError (dart:async/stream_controller.dart:647:7)
E/flutter (12905): #10 _RootZone.runBinaryGuarded (dart:async/zone.dart:1328:10)
E/flutter (12905): #11 _BufferingStreamSubscription._sendError.sendError (dart:async/stream_impl.dart:355:15)
E/flutter (12905): #12 _BufferingStreamSubscription._sendError (dart:async/stream_impl.dart:373:16)
E/flutter (12905): #13 _BufferingStreamSubscription._addError (dart:async/stream_impl.dart:272:7)
E/flutter (12905): #14 _SyncStreamController._sendError (dart:async/stream_controller.dart:767:19)
E/flutter (12905): #15 _StreamController._addError (dart:async/stream_controller.dart:647:7)
E/flutter (12905): #16 new Stream.fromFuture. (dart:async/stream.dart:110:18)
E/flutter (12905): #17 _RootZone.runBinary (dart:async/zone.dart:1386:54)
E/flutter (12905): #18 _FutureListener.handleError (dart:async/future_impl.dart:143:20)
E/flutter (12905): #19 Future._propagateToListeners.handleError (dart:async/future_impl.dart:650:47)
E/flutter (12905): #20 Future._propagateToListeners (dart:async/future_impl.dart:671:24)
E/flutter (12905): #21 Future._completeError (dart:async/future_impl.dart:490:5)
E/flutter (12905): #22 Future._asyncCompleteError. (dart:async/future_impl.dart:538:7)
E/flutter (12905): #23 _microtaskLoop (dart:async/schedule_microtask.dart:41:21)
E/flutter (12905): #24 _startMicrotaskLoop (dart:async/schedule_microtask.dart:50:5)
Application finished.

[NTMS2017]

After I connect the server;

I send this:
Q101::49785::*************

and I will get this
1::2::119351:_:NİYAZİ TOROS

[NTMS2017]

I try to test and find where is the error coming from. And I found that data that I send to socket is not correct:

Q: 28.06.2018 08:53:57->GET / HTTP/1.1. (correct send data but be: Q101::49785::ABCDE)
A: 28.06.2018 08:53:57 ->:1::1::FAIL1

So how can I emit GET / HTTP/1.1. not to send to server?

I create a Flutter App. I need to connect my app to local network socket services. As shown below, I can use telnet Connect, Send data and Receive data from server. I use Flutter web_socket plugin and example. I can connect to server and send the data but I cannot catch (or get data, it dosen't show anything.) the data. In Flutter google groups one person advice me to use stream instead of StreamBuilder.

To send data I use; Q101::49785::ABCDE
And receive data I get; 1::2::119351:_:NİYAZİ TOROS

And when I use this example (https://flutter.io/cookbook/networking/web-sockets/) I am getting error on my socket service as:

Q: 28.06.2018 08:53:57->GET / HTTP/1.1
A: 28.06.2018 08:53:57 ->:1::1::FAIL1

Example:
Last login: Tue Jun 26 15:01:44 on ttys000
Niyazis-MBP:~ niyazitoros$ telnet
telnet> telnet 192.168.1.22 1024
Trying 192.168.1.22...
Connected to 192.168.1.22.
Escape character is '^]'.
Q101::49785::*************
1::2::119351:_:NİYAZİ TOROS