Imagine the following senario
User sign in my app using his google account. What i need now is to grab his name, profile and background photo from his account. User interact with my app and make a post to a server. (i am saving his name and avatar photo to the server) other users can see his post together with his profile name and avatar.
Now if user decide to change his profile photo or name how data on my server would reflect his changes ? Cant figure out the flow of the above process.