Request: Basic Background Execution

[kylewill]

Llama 3.3 suggested this code to keep alive as long as the OS will allow:

var backgroundTaskId = UIBackgroundTaskInvalid

func applicationDidEnterBackground(_ application: UIApplication) {
    backgroundTaskId = application.beginBackgroundTask(withName: "MyBackgroundTask") {
        // Expiration handler, called when time runs out or system terminates the task
        self.endBackgroundTask()
    }
    
    // Perform your background task here
    DispatchQueue.main.asyncAfter(deadline: .now() + 120) { // Run for up to 2 minutes
        // Your code to keep the connection alive goes here
        self.endBackgroundTask()
    }
}

func endBackgroundTask() {
    if backgroundTaskId != UIBackgroundTaskInvalid {
        UIApplication.shared.endBackgroundTask(backgroundTaskTaskInvalid
    }
}

It also suggested using URLSession for more guarantees but that would be more complicated.

I mostly want to ask and be able to come back to the response without losing the connection.

[relink2013]

I would have to agree with this. A majority of the time I’d prefer to let it answer in the ba ground while I switch apps to do something else.

For the longest time I actually thought this was an error on my backend. Then I realized it’s just that Enchanted breaks the connection when it’s not in the foreground (atleast on iOS).