How to know that web socket is connected in subscription widget.

[anirudhsharma392]

I am using a subscription widget and how can I make sure that connection is established with the server and I can call it in the subscription widget.

here is my socket client connection

 link = HttpLink(
      uri:
          'http://staginggraphql*********************,
      headers: <String, String>{
        'x-token': centralstate.GraphQLToken,
      },
    );

    socketLink = WebSocketLink(
      url: 'ws://staginggraphql*********************,
      config: SocketClientConfig(
        initPayload: {"authToken": "${centralstate.GraphQLToken}"},
        autoReconnect: true,
        inactivityTimeout: Duration(seconds: 30),
      ),
    );

    link = link.concat(socketLink);

    client = ValueNotifier(
      GraphQLClient(cache: InMemoryCache(), link: link),
    );

Subscription widget:

GraphQLProvider(
          client: client,
          child: Subscription(
            operationName,
            """subscription $operationName{
    leagueGameStatusUpdate(leagueAppID:"${centralstate.leagueAppID}"){
          appID
          error
          status
            }
            }""",
            builder: ({
              bool loading,
              dynamic payload,
              dynamic error,
            }) {
             


//how to make sure that WebSocket is connected and then call playful function


              game.playDuel().then((value) {
                if (value != 'complete') {
                  print('error screen');
                }
              });

              return PlayingAnimation();
            },
          )),

loading and payload always returns true and null I need to give some delay before calling game.playDuel() otherwise it will not work. I know I can ask it on stack overflow but I am not getting any response over there. Sorry but I need to fix this asap. thanks, any help would be appreciated.

[eliezedeck]

+1. I would also like to know this event.

[eliezedeck]

I have a PR for this here: https://github.com/zino-app/graphql-flutter/pull/580

[anirudhsharma392]

Hey @eliezedeck , did you figure out how to know this event??

[eliezedeck]

Hey @eliezedeck , did you figure out how to know this event??

Yes, see the PR above.

[anirudhsharma392]

if I incorporate the changes. It's giving me error that subscribe was called on null.

[eliezedeck]

I suspect there is something wrong with how you're using the library. That should probably be something easy to fix though. I'm sorry but I don't have the time resource to look into this for the time being.

EDIT: I'm using this myself, and I'm not having the same problem as you do. So, that's a fact to consider.

[micimize]

Try 4.0.0-alpha.6, which has a revitalized version of WebSocketLink and an overhauled subscription api. It also adds a Might make what you're trying to do easier.

It doesn't really expose the connection state. Maybe we should add loading responses to the stream while reconnection attempts are being made.