I am working in a project where I need to show notifications fired by Firebase. Everything works fine with the send and receive flow. But I need to customise the notification before showing it, i.e., when the app is in background. Because the message I receive from our server it's already Base64 encoded. And therefore the notification displays a long string that my petrify the users.
Is there any delegate or something which I can use to modify the received data before presenting it when the app is in background?
Currently there is no way in iOS to do that. Please refer to this answer for more details How to change how a remote notification is presented before presentation?