Once subscribe does its work, it should not be concerned with notification or returning a value. Instead, it should rely on the observer pattern. Some observer somewhere else should be concerned with showing a notification upon a feed creation. Some observer somewhere else should be concerned with knowing when a subscription has completed. What it looks like is that I have followed this pattern in some places but not others.
Once subscribe does its work, it should not be concerned with notification or returning a value. Instead, it should rely on the observer pattern. Some observer somewhere else should be concerned with showing a notification upon a feed creation. Some observer somewhere else should be concerned with knowing when a subscription has completed. What it looks like is that I have followed this pattern in some places but not others.