Hi, I am currently building a mobile application that requires authenticating against facebook.
Please advise if there are any components available for mobile applications and the best & fastest approach to get this working.
I have no advice for you, except stay positive, an answer will present itself.
I have not had to do any facebook integration yet, but there is a component:
Being a component supported by Outsystems, if it doesn't do exactly what you need it to do, it's likely it will in the future. You can work with them on the facebook-connector specific forum and generally they are quite responsive.