Feature: SignIn with Twitter (#479)

* Add Twitter SignIn flow

Co-authored-by: Sojan Jose <sojan@pepalo.com>

app/controllers/twitter/base_controller.rb

@@ -0,0 +1,24 @@
+class Twitter::BaseController < ApplicationController
+  private
+
+  def parsed_body
+    @parsed_body ||= Rack::Utils.parse_nested_query(@response.raw_response.body)
+  end
+
+  def host
+    ENV.fetch('FRONTEND_URL', '')
+  end
+
+  def twitter_client
+    Twitty::Facade.new do |config|
+      config.consumer_key = ENV.fetch('TWITTER_CONSUMER_KEY', nil)
+      config.consumer_secret = ENV.fetch('TWITTER_CONSUMER_SECRET', nil)
+      config.base_url = twitter_api_base_url
+      config.environment = ENV.fetch('TWITTER_ENVIRONMENT', '')
+    end
+  end
+
+  def twitter_api_base_url
+    'https://api.twitter.com'
+  end
+end