Merge pull request #213 from remi/respect-discovered-rootUrl

Use discovered 'rootUrl' as base URI for services

lib/google/api_client/discovery/api.rb

@@ -30,7 +30,7 @@ module Google
       # Creates a description of a particular version of a service.
       #
       # @param [String] document_base
-      #   Base URI for the service
+      #   Base URI for the discovery document.
       # @param [Hash] discovery_document
       #   The section of the discovery document that applies to this service
       #   version.
@@ -126,6 +126,16 @@ module Google
         return @discovery_document['features'] || []
       end
 
+      ##
+      # Returns the root URI for this service.
+      #
+      # @return [Addressable::URI] The root URI.
+      def root_uri
+        return @root_uri ||= (
+          Addressable::URI.parse(self.discovery_document['rootUrl'])
+        )
+      end
+
       ##
       # Returns true if this API uses a data wrapper.
       #
@@ -148,7 +158,7 @@ module Google
       def method_base
         if @discovery_document['basePath']
           return @method_base ||= (
-            self.document_base.join(Addressable::URI.parse(@discovery_document['basePath']))
+            self.root_uri.join(Addressable::URI.parse(@discovery_document['basePath']))
           ).normalize
         else
           return nil