I am new to Flutter and I am writing an app which requires users to login. I already have an API that provides me with a JWT. I then store this using the secure storage library.

Once the user gets the 200 OK with the token, I want to send another request to the server to retrieve the user's details and store it in a kind of singleton class, so I can use it through out the app until he logs out. There are so many buzzwords being thrown at me right now, Providers and BLoCs.

I was wondering what is the best practice to store the current logged in user details in the app? Previously I've been aware of storing the data in a singleton class. But now I'm not sure whether I should write a singleton class or a Provider? (I'm still rusty on my knowledge about how Providers and BLoCs work).