Is it okay for a Service in android to extend Coroutine Scope?

Yes :

class MyService : Service(), CoroutineScope by MainScope()

But you could also use composition :

class MyService : Service() {
    private val scope = MainScope()
}

In either case, don't forget to cancel the scope in onDestroy.

Just extend

LifecycleService

from AndroidX Lifecycle Service and use

lifecycleScope

.

Don’t make it implement CoroutineScope. Either create a new scope within it or use the

lifecycleScope

. A service should have a scope, not be a scope

When would we cancel the created scope? In the service

onDestroy

method?