"There could be legal issue on persisting the user details". Ehm.
"Facebook app passes data to custom application", which "passes in user identity data (ID, various profile attributes) and relationship data (friends)". Not sure what a custom app is? marketplace.informatica.com/mpresources/Co…
- "Use social login and apps to gain permission and access to social data"
- "Once permission has been granted, brands must extract data via the social network's API"
...from the Teradata brochure "Social data at work" (2013): slideshare.net/mlummus1/socia…