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  • Up to you, try one and see how it feels. Filtering in the service means not exposing transport details to the rest of the app, so I'd start there. Either way you should type the response so the compiler can actually help you with the filtering. Commented Aug 17, 2022 at 13:33
  • It's better to do it after subscribe() and also better to add error() as well. Commented Aug 17, 2022 at 13:33