omniauth-cognitiveclass

omniauth-cognitiveclass is a strategy (plugin or extension) for OmniAuth, which is a Ruby authentication library. OmniAuth integrates transparently with Devise, a popular Rails authentication solution.

Cognitive Class is also known as Big Data University. It's based on the OpenEdx platform

Usage with Devise

Add this to your Gemfile:

gem "omniauth-cognitiveclass", "~> 0.4.0"

Install the gem:

bundle install

Define these environment variables for your Ruby application:

export COGNITIVE_SITE="https://courses.cognitiveclass.ai/"
export COGNITIVE_AUTHORIZE_URL="https://courses.cognitiveclass.ai/oauth2/authorize"
export COGNITIVE_TOKEN_URL="https://courses.cognitiveclass.ai/oauth2/access_token"

export COGNITIVE_ID="..."
export COGNITIVE_SECRET="..."

export MY_ORIGIN="http://example.com:3000"

Add this to your config/initializers/devise.rb:

require "omniauth_cognitive_class"

callback_url = "#{ENV.fetch('MY_ORIGIN')}}/users/auth/bdu/callback"

config.omniauth :cognitive_class, ENV.fetch("COGNITIVE_ID"), ENV.fetch("COGNITIVE_SECRET"),
  callback_url:           callback_url,
  provider_ignores_state: true,
  strategy_class:         OmniAuth::Strategies::CognitiveClass

Follow the other steps from the Devise OmniAuth Guide.

See Also

• https://github.com/omniauth/omniauth/wiki
• https://github.com/intridea/omniauth-oauth2