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Facebook Authentication
This will show how to create a new facebook application and configure it. Then add some authentication with the omniauth-facebook gem and top it off with a client-side authentication using the JavaScript SDK.
(12 minutes)
Securing an API
There are many approaches to locking down an API. Here I start off with HTTP Basic authentication then move on to generating a unique token which can be passed through a URL parameter or HTTP header.
(7 minutes)