# File lib/fog/aws/requests/lambda/delete_event_source_mapping.rb, line 24
        def delete_event_source_mapping(params={})
          mapping = self.get_event_source_mapping(params).body

          unless mapping
            message  = "ResourceNotFoundException => "
            message << "The resource you requested does not exist."
            raise Fog::AWS::Lambda::Error, message
          end

          mapping_id = mapping['UUID']
          self.data[:event_source_mappings].delete(mapping_id)

          mapping['State'] = 'Deleting'

          response = Excon::Response.new
          response.status = 202
          response.body = mapping
          response
        end