lib/mailgun/client.rb in mailgun-ruby-1.1.3 vs lib/mailgun/client.rb in mailgun-ruby-1.1.4

@@ -60,9 +60,14 @@
         )
       end
 
       case data
       when Hash
+        # Remove nil values from the data hash
+        # Submitting nils to the API will likely cause an error.
+        #  See also: https://github.com/mailgun/mailgun-ruby/issues/32
+        data = data.select { |k, v| v != nil }
+
         if data.key?(:message)
           if data[:message].is_a?(String)
             data[:message] = convert_string_to_file(data[:message])
           end
           return post("#{working_domain}/messages.mime", data)