Ability to reset State in HubConnection.ConnectAsync()

[samuelgoldenbaum]

Currently, there is no way to reset State when connecting. This is not ideal as it means we have to initialize a new HubConnection instance every time we connect and then bind to new handlers. This becomes prevalent when attempting initial connection retries in a loop.

I think default parameter here could be useful like:

public Task<HubConnection> ConnectAsync(bool resetState = false) {
            if (resetState)
                this.State = ConnectionStates.Initial;
                
           ...

[tsoen]

Hello, any update on this ?

[Benedicht]

@tsoen The recommended way is to use a reconnect policy.

[tsoen]

@Benedicht Here is our situation :
We use Unity to build an Android application.
We do have a Reconnect Policy set up.

However, when the application is sent to the background, the HubConnection closes after around 30 seconds.
When the application is put to the foreground again, the connection is considered as gracefully closed, so the reconnect policy does not try to reconnect as it was not considered as a connection error.

So we need to start again a new connection.

But calling ConnectAsync() throws new Exception("HubConnection - ConnectAsync - Expected Initial or Redirected state, got " + this.State.ToString())

So we have to recreate a new HubConnection from scratch, re-register to all events and it is just a bit annoying.

Let me know if I am wrong somewhere.

[Benedicht]

@tsoen You are correct, that's the correct way to do it.