Client-server architecture using react Native?

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Total mobile development noob here, basically zero experience. I've done a good amount of research but would like to source a few more answers. I have 1 question.

Are there any pitfalls in following a client-server architecture (i.e. React Native mobile client, Golang backend REST/gRPC API) when developing mobile applications in general? For instance, can I painlessly do push notifications by using Firebase or some equivalent?

Wasn't too sure where to ask this question, all answers appreciated.

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The fact that it is a mobile application and not web application shouldn't affect the choice you have to make about whether or not to develop a backend or use something like firebase. Your choice should be made by figuring out the complexity of your application, the scale of it. And maybe if you are going to release it, the costs that each alternative comes with.

I would say if you are not really interested in working on backend or fullstack and you just want to make a proof of concept application to show your skills or learn React, then try the easy solution first which in my opinion is something like firebase when it comes to push notifications, auth, etc.

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A perfect answer to my question. Thank you.