For the rails project I am currently working on, I thought I’d try out third party login and registration using Instagram. I am already using devise for registration and authentication, so in this post I am going to demonstrate how I incorporated logging in via Instagram, alongside devise. If you’ve implemented omniauth with facebook, this is going to be pretty familiar. The biggest difference is that Instagram is a little more restrictive with its app, meaning your app will first be in “sandbox” mode, with a limit of 10 users that you need to invite. All apps will undergo a review process and will need to be approved by Instagram before it can go live with unlimited users.
Having completed the Sinatra section, it’s now time to build a simple Sinatra webapp.
Starting off with a blank slate was the hardest part. Exciting, but with no code to build on or refactor it’s a little difficult to determine what a good starting point will be.