redef fun execute_hook do
		var err = self.curl.native.easy_setopt(new CURLOption.get, true)
		if not err.is_ok then return answer_failure(err.to_i, err.to_s)
		return null
	end

	redef fun execute_hook do
		var err = self.curl.native.easy_setopt(new CURLOption.post, true)
		if not err.is_ok then return answer_failure(err.to_i, err.to_s)

		if self.json_data != null then
			var postdatas = self.json_data.to_json
			err = self.curl.native.easy_setopt(new CURLOption.postfields, postdatas)
			if not err.is_ok then return answer_failure(err.to_i, err.to_s)
		end
		return null
	end

	redef fun execute_hook do
		var err = self.curl.native.easy_setopt(new CURLOption.custom_request, "DELETE")
		if not err.is_ok then return answer_failure(err.to_i, err.to_s)
		return null
	end

	redef fun execute_hook do
		var err = self.curl.native.easy_setopt(new CURLOption.custom_request, "PUT")
		if not err.is_ok then return answer_failure(err.to_i, err.to_s)

		if self.json_data != null then
			var postdatas = self.json_data.to_json
			err = self.curl.native.easy_setopt(new CURLOption.postfields, postdatas)
			if not err.is_ok then return answer_failure(err.to_i, err.to_s)
		end
		return null
	end