Websocket error in @foal/socket.io/lib/socketio-controller.service

Version of FoalTS: 2.8.0

I tried updating my backend but I am still failing at this error:

/node_modules/@foal/socket.io/lib/socketio-controller.service.js:59
                     return cb({
                                ^
 TypeError: cb is not a function
     at Socket.<anonymous> (/node_modules/@foal/socket.io/lib/socketio-controller.service.js:59:28)
     at processTicksAndRejections (node:internal/process/task_queues:94:5)
 Program node ./build/index.js exited with code 1

What can be my problem, did I missed some step in upgrading the project to 2.8?

Thanks

[LoicPoullain]

Thank you for you investigation. 👍

I found the issue. Setting aside the error that is raised because no response is returned, the TypeError: cb is not a function error comes from the fact that the client does not provide a callback in its emit function:

// Does not work
socket.emit('i am client', {data: 'foo!', id: data.id});

// Works
socket.emit('i am client', {data: 'foo!', id: data.id}, (data) => {
  console.log(data);
});

It appears that, when no callback is provided in the client, the server sdk does not also pass a function to the on method.

[LoicPoullain]

The issue has been fixed in version 2.8.1 which will be released this week-end. Thank you for reporting this problem @pospile 👍