Module: ActionAlexa::Intent::Authorization

Included in:
Base
Defined in:
lib/action_alexa/intent/authorization.rb

Overview

Module to allow adding basic authorization flow to Intents This module interfaces between accessing the user profile from Amazon and provide a callback to pull the application user who matches the profile UUID provided by the Alexa service

Constant Summary collapse

AMAZON_API_URL = 
'https://api.amazon.com/user/profile'.freeze

Instance Method Summary collapse

Instance Method Details

#access_token ⇒ Object 



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# File 'lib/action_alexa/intent/authorization.rb', line 52

def access_token
  @access_token ||= alexa_payload.access_token
end

#current_user ⇒ Object

Utility method that allows upstream Intent classes to map the Amazon user Alexa is calling as with the user account for your service. Common mapping is to match the UUID from the Alexa payload against a User object in your Users table This method will call fetch_user with the amazon user id from the request while fetch_user will execute any lambda passed into the Configuration current_user_hook to perform the look up



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# File 'lib/action_alexa/intent/authorization.rb', line 19

def current_user
  @current_user ||= fetch_user_from_request
end

#fetch_amazon_user_profile(access_token) ⇒ Object 



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# File 'lib/action_alexa/intent/authorization.rb', line 36

def (access_token)
  uri = URI.parse(AMAZON_API_URL)
  request = Net::HTTP::Get.new(uri.request_uri)
  request['Authorization'] = 'bearer ' + access_token
  http = Net::HTTP.new(uri.host, uri.port)
  http.use_ssl = true
  http.verify_mode = OpenSSL::SSL::VERIFY_PEER

  response = http.request(request)
  JSON.parse(response.body)
end

#fetch_user(user_id) ⇒ Object

Fetch the user object in your application that matches the user_id from

the amazon request. The implementation for the look up is configurable
by passing in a block to the Configuration.current_user_hook utilty

The Configuration.current_user_hook method will be invoked with the

user_id from the Alexa payload



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# File 'lib/action_alexa/intent/authorization.rb', line 32

def fetch_user(user_id)
  ActionAlexa.config.current_user_hook.call(user_id)
end

#fetch_user_from_request ⇒ Object 



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# File 'lib/action_alexa/intent/authorization.rb', line 23

def fetch_user_from_request
  fetch_user(profile['user_id'])
end

#profile ⇒ Object 



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# File 'lib/action_alexa/intent/authorization.rb', line 48

def profile
  @profile ||= (access_token)
end