Database storage and database management

Question

I need to store certain variables in a database and in storage. but it is important to be sure that these variables will be stored in two databases, and not just in one, in addition, these variables must have the same values. but I see that the storage and database are not in communication. How to fix it?

Answer 1

The short answer is that currently, the security rules of one service cannot access data from another service. See this thread for more information (a similar common problem).

If the data you are hoping to provide is user-specific, you can insert custom tokens that contain this data, which can be shared across services (since both services receive the same token).