Every user should identify him/herself when using the mobile app to the server and other users. To achieve this, Firebase creates a user account. Each user should have at least one account to be able to use the InstagramLike service. Unauthorized access is not allowed through the mobile app.
There is no limitation on how many accounts can be created by a single user in Firebase. The only requirement is to have a valid email or a valid mobile number. Linking virtual accounts (users) with unique items/services from the real world is a good technique to reduce the number of fake accounts in a system.
We will use the default account creation service provided by Firebase.
Firebase supports integration of the most popular social networks, ...
