Electron renderer socket.io-client receive event with huge delay

[gwendalF]

Hello,

I have troubles using the socket.io-client package to my project. I have a python backend server using python-socketio v5 and I try to communicate with it inside my electron app in a react renderer.

I can connect throuh websocket to my server. But I received the custom event emitted with huge delay (~10seconds sometimes more sometimes less) but I can emit to the server immediatly. My server is serve in localhost so I expect to have really small latency. I try to use the package on the main process and it seems to works correctly (receive event directly).
What can I do to be able to use it on the renderer without issue?

Thanks in adance

Edit: After some digging, even in the main process I have the delay. So the issue is on server side and not with socket.io-client

[darrachequesne]

That sounds weird indeed. In localhost, you should have a latency < 10 ms.

Can you add logs on the server side, to check the timings? Or log network events with netLog?

[gwendalF]

It was definetly a serverside issue. The serveur emitted the log of the event emitted but due to an async error the event were not properly emitted

Thanks

[darrachequesne]

Oh, OK! Thanks for the update 👍