I am using quarkus-next websockets (java) and try to understand how websockets work in general.

When I call an rest-endpoint with the function getDances everything works as expected. When I call this function with a websocket the websocket disconnects after the first line context.request.getHeader("x-schema"). I tried to comment out this line but also Settings.findAll().firstResult() does not work.

Service:

@Inject
RoutingContext context;

public List<DanceDTO> getDances() {
    String schema = context.request().getHeader( "x-schema" );
    Settings settings = Settings.findAll().firstResult();
    ...
    return danceDao.findAllDances();
}

MyWebsocket:

@WebSocket(path = "/beamer/{id}", endpointId = "Dance")
@ApplicationScoped
public class WebsocketEndpoint {

    @Inject
    WebSocketConnection connection;
    @Inject
    Danceservice danceService;

    @OnOpen()
    public List<DanceDTO> onOpen(@PathParam String id) {
        return danceService.getDances();
    }

    @OnClose
    public void onClose() {
        System.out.println(connection.pathParam("id") + " left the game");
    }
}

I would like to send all dances from the database to the client, nothing else.

Thanks for the explanation

Side information, not sure if needed:
Settings.findAll().firstResult(); does work because of Panache.