I have an app developed using node js. No servers,No install, No trace, No database. However I would like to integrate a user sign up and authentication scheme into this app. First I know I will need to get the information the user sign up with to be able to log them in and I know how to accomplish this traditionally using a database. What I want to know is if I can achieve user sign up and log in using node js without the idea of a database. Please point me in the right direction. I am new to node js.