you should do what you need. Get some positive feedback.
Your manager is responsible for you and for your performance. If he needs to bake you a cake, he should. A manager should support his team, most times not technical, more emotional and do the administration stuff.
I know that it is not very common to ask for positive feedback, but if this is what makes your day better than why not? There is nothing, really nothing bad if you do "fishing for compliments". I guess the most important point here is to make sure your manager got that you are serious about asking for positive feedback. It shouldn't be a short "You are so nice!, We need you!". He should tell you why they need you, what makes you to the important guy in backend.
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