Support for use_cloud_org_for_api_access (#468)

google_ads_config.rb

@@ -26,6 +26,12 @@
   c.client_secret = 'INSERT_CLIENT_SECRET_HERE'
   c.refresh_token = 'INSERT_REFRESH_TOKEN_HERE'
 
+  # Whether to use the Google Cloud Organization of your Google Cloud
+  # project instead of developer token to determine your Google Ads API access levels.
+  # Use this flag only if you are enrolled into a limited pilot that supports
+  # this configuration.
+  # c.use_cloud_org_for_api_access = false
+
   # You can also authenticate using a service account. If "keyfile" is
   # specified below, then service account authentication will be assumed and
   # the above authentication fields ignored. Read more about service account

lib/google/ads/google_ads/config.rb

@@ -32,6 +32,7 @@ class Config
         attr_accessor :developer_token
         attr_accessor :login_customer_id
         attr_accessor :linked_customer_id
+        attr_accessor :use_cloud_org_for_api_access
 
         attr_accessor :log_level
         attr_accessor :log_target
@@ -55,6 +56,7 @@ def initialize(&block)
           @developer_token = nil
           @login_customer_id = nil
           @linked_customer_id = nil
+          @use_cloud_org_for_api_access = false
 
           @log_level = nil
           @log_target = nil

lib/google/ads/google_ads/service_lookup.rb

@@ -62,9 +62,13 @@ def gax_service_params
         end
 
         def headers
-          headers = {
-            :"developer-token" => config.developer_token
-          }
+          headers = {}
+
+          # If config.use_cloud_org_for_api_access is not True, add the developer
+          # token to the request's metadata
+          if !config.use_cloud_org_for_api_access
+            headers[:"developer-token"] = config.developer_token
+          end
 
           if config.login_customer_id
             validate_customer_id(:login_customer_id)

test/test_config.rb

@@ -61,4 +61,26 @@ def test_configure()
     assert_equal(client_secret_value, config.client_secret)
     assert_equal(developer_token_value, config.developer_token)
   end
+
+  def test_use_cloud_org_for_api_access()
+    config = Google::Ads::GoogleAds::Config.new
+
+    refresh_token_value = '1234'
+    client_id_value = 'abcd'
+    client_secret_value = '!@#$'
+    use_cloud_org_for_api_access = true
+
+    config.configure do |c|
+      c.refresh_token = refresh_token_value
+      c.client_id = client_id_value
+      c.client_secret = client_secret_value
+      c.use_cloud_org_for_api_access = true
+    end
+
+    assert_equal(refresh_token_value, config.refresh_token)
+    assert_equal(client_id_value, config.client_id)
+    assert_equal(client_secret_value, config.client_secret)
+    assert_equal(nil, config.developer_token)
+    assert_equal(true, config.use_cloud_org_for_api_access)
+  end
 end