Storing data from Facebook's Graph API

For the past two days, I finally was able to understand how to extract data from Facebook's Graph API.

How to use Graph API to get user's total friend count [JavaScript]

Awesome, right? Now, for the next part.

I want to be able to store this data so that it can be publicly displayed on a user's profile within the application I am developing.

Here is the flow that I am thinking:

• User goes to create an account on my application
• User is asked via OAuth to pull in their Facebook data such as their profile picture, friend count, etc.
• Their data is stored and synced to be always up-to-date [this is what I am trying to figure out]
• The data stored is publicly displayed on their profile (such as their friend count)