adding base api controller and routes

app/controllers/api/v1/base_controller.rb

@@ -0,0 +1,45 @@
+class Api::V1::BaseController < ApplicationController
+  protect_from_forgery with: :null_session
+
+  before_filter :destroy_session
+
+  rescue_from ActiveRecord::RecordNotFound, with: :not_found!
+
+  def destroy_session
+    request.session_options[:skip] = true
+  end
+
+  def invalid_resource!(errors = [])
+    api_error(status: 422, errors: errors)
+  end
+
+  def not_found!
+    return api_error(status: 404, errors: 'Not found')
+  end
+
+  def api_error(status: 500, errors: [])
+    unless Rails.env.production?
+      puts errors.full_messages if errors.respond_to? :full_messages
+    end
+    head status: status and return if errors.empty?
+
+    render json: jsonapi_format(errors).to_json, status: status
+  end
+
+
+  private
+
+  def jsonapi_format(errors)
+    return errors if errors.is_a? String
+    errors_hash = {}
+    errors.messages.each do |attribute, error|
+      array_hash = []
+      error.each do |e|
+        array_hash << {attribute: attribute, message: e}
+      end
+      errors_hash.merge!({ attribute => array_hash })
+    end
+
+    return errors_hash
+  end
+end

config/routes.rb

@@ -95,6 +95,13 @@
 
   match '/perf', to: 'perfs#create', via: :post
 
+  # api
+  namespace :api do
+    namespace :v1 do
+      resources :questions, only: [:show]
+    end
+  end
+
   # The priority is based upon order of creation:
   # first created -> highest priority.