Hi Sir,
I completely understand your requirement, I did same work in my current project with React native and c# APIs.
I will be happy if you will give me a chance.
I have 8 years exp. with C# and sqlserver and 2 years exp react native. Currently I am working with C#, Asp. net and React native.
if you want to show my work I can show you once you will connect.
I will be happy if you will give me a chance.
I can add otp function in it.