Socket connect w/ no session ID

[lblast]

I have experienced problems where the socket connects properly, but there is no session ID. This doesn't happen every time I connect, and typically it happens after the socket has trouble connecting (for example, if WiFi is disabled on the device).

The log when this happens are as follows:
SocketIO_OnReconnectError(): Unable to connect to the remote server.
SocketIO_OnConnected(): Socket connected, but with no session ID.

I'll note that I'm using v3.0.6 and I experience this on Android devices when I turn the wifi off, wait for socket to try reconnecting, and then turn the wifi back on. On iOS I didn't notice this issue.

[doghappy]

if you switch your network to another, socket.io will be disconnected, and then it will try to reconnect, it will keep trying to reconnect unless the connect successful, you will get a OnReconnectError after each failure.

you mean you can't get session id after to reconnect successful?

could you show me some logs? because I can't repoduce this issue, I haven't Xarmarin enviroment.

socket.io-client-csharp/src/SocketIOClient/Transport/BaseTransport.cs

Line 157 in 98c2975

Debug.WriteLine($"[Receive] {text}");

[lblast]

That is correct, we see the ReconnectError as expected when the wifi is off, and once we turn it back on we will get OnConnected. If I log the session ID in the OnConnected response it is empty, and checking Connected would return "true".

As mentioned, we only noticed this on Android; although the implementation is no different. What additional logs would help you in this case? I will do my best to provide them.

[doghappy]

are you developing on Windows?

Fiddler Classic is a good debug tools for http or websocket, it can record data transferred between client and server, you can choose a session, and then Save it in a ArchiveZip, finally send it to me by email(or upload to here).

if you have any secret in those data, you also can edit ArchiveZip.

if I get an ArchiveZip, I can restore this data in fiddler and then I can analyze the issue.

---

if you can't use Fiddler, you should clone this repo, add it to your project, then you can record log in here:

socket.io-client-csharp/src/SocketIOClient/Transport/BaseTransport.cs

Line 157 in 98c2975

Debug.WriteLine($"[Receive] {text}");