[BUG] Pusher Swift SDK can't connect to Soketi Serverless

[buttjer]

Description
Can't connect. Stuck in connecting state and throwing this error.

nw_protocol_copy_ws_definition_block_invoke [C1.1.1:1] nw_ws_validate_server_response

Reproduction steps
Install latest Pusher Swift SDK.

        let builder = AuthRequestBuilder(authUrl: URL(string: "https://localhost/broadcasting/auth")!)

        let options = PusherClientOptions(
            authMethod: .authRequestBuilder(authRequestBuilder: builder),
            attemptToReturnJSONObject: true,
            autoReconnect: true,
            host: PusherHost.host("soketi-***.***.workers.dev"),
            port: 443,
            useTLS: true
        )

        pusher = Pusher(key: "***", options: options)
       pusher.connect()

leads to

nw_protocol_copy_ws_definition_block_invoke [C1.1.1:1] nw_ws_validate_server_response

and with logging

    public func changedConnectionState(from old: ConnectionState, to new: ConnectionState) {
        log.debug("Changed connection state from \(connectionStateString(forConnectionState: old)) to \(connectionStateString(forConnectionState: new))")
    }

only state change to .connecting was logged, never .connected

Changed connection state from Disconnected to Connecting

Expected behavior
connects

Environment

• Soketi Serverless 0.7.0
• Pusher Channels Swift Client 10.1.3 (https://github.com/pusher/pusher-websocket-swift)

Related Issues
pusher/pusher-websocket-swift#372
pusher/pusher-websocket-swift#352
chinloyal/pusher_client#36
pusher/pusher-websocket-swift#328
#585

Additional context
You could assume that Pusher altered their Swift SDK in a way its now incompatible with third party hosts with version 9+.
Or Soketi is answering not as expected in an early connecting state.

[rennokki]

Hi there, the issues are not meant for Cloudflare Serverless versions. I will gladly triage this and look on it further soon.

[alexmck]

@buttjer Since MessageBird purchased Pusher, this seems to be a deliberate change in direction for Pusher, where they no longer support customer servers in newer versions of their Swift SDK. If you want to use the Pusher Swift SDK with Soketi, you will need to use version 8 in your project.

[buttjer]

@alexmck I don't think so. They changed the underlying connection(socket?) package and it's might just not compatible anymore.

Thanks. We replaced the underlying package that initiates the connection request in v9 so this will be the cause of the issue - however as this works well with our own service our advice would be to continue to use v8 as we can't commit to supporting custom websocket server connections. – @benw-pusher