> <…>bject('users', {user_id = uuid.new(), fullname = fullname}) > **|if err ~ = nil then|** > return {body = json.encode({status = "Error!", error = <…> https://www.tarantool.io/ru/doc/latest/getting_started/getting_started_imcp/#writing-data-5-minutes There musn't be a space between ~ and =. by @opomuc