Hi everyone, In an app a user have to send invitations to friends for them to register on the app, and possibly join a group the sender has created beforehand.
1. Does someone know about a way to have the app connect to GMail/ Facebook/... bring a list of people to select from, and send an email to them? 2. What would be a simple way to get a "registration+join_group" link in the email that works only once (so that people cannot give it to someone else after they have used it to register themselves)? Thanks a lot, Aurelien
