Facebook user authentication in a web application. Purpose: An example of sequence diagram which shows how Facebook user could be authenticated in a web application to allow access to his/her Facebook resources.. Summary: Facebook uses OAuth 2.0 protocol framework which enables web application (called "client"), which is usually not the Facebook resource owner but. Live streaming and Vimeo's livestreaming platform helps businesses communicate with, train, and educate employees using enterprise grade live video. Live streaming is also perfect for virtual events, virtual conferences, webinars, panels, and recurring classes or meetings. You can live stream to popular social channels such as YouTube, Facebook.