I have created an application that receives messages from a server connected via Websocket. All these messages are parsed and an action is sent to an Apple Watch with WCSession. All the logic is this 2 lines, 1 init the websocket - 2 link receive from websocket and send to watch protocol.

I need to allow the app to continue all this process in background (but not if the app is closed). The server is a chat (wss://irc-ws.chat.twitch.tv:443) so many messages must can received (30 to 100 per second). I don't need any UI change till the app is in background.

I am asking some help me to understand how to create a background processes :

• I dont know which Background mode is required (app configuration)
• How to call my functions in "handelAppRefresh" ? (detect background phase - func call when background )

I already saw this conf from WWC2019 https://developer.apple.com/videos/play/wwdc2019/707 so I understanded Apple good practices (end process as soon as possible, optimise process as possible...), but I don't know how to tell my app to continue specific processes when he is in background.

Thanks in advance to every advice or knowledge sharing.

CodePudding user response：

Handle websocket while background is not possible for a long time. A solution was to move the websocket logic in the watch.