Hi, I’m sorry for the very late answer. That’s a good question. In general case such subscription should be treated with extra care, e.g. we always need to precisely know when to unsubscribe. In this case I have an observable that emits only 1 value, when HTTP request is done. Essentially this facade says “no matter what, the request shouldn’t be cancelled”. I don’t apply this same solutions to all the components and facades. Whenever it’s possible, I subscribe as close to the data rendering as possible, ideally in the HTML template.