Proper architecture for Node.js modules and database connectivity?

Question

I\'m writing a Node app that accepts TCP connections. I have a few separate Node modules (utilizing the exports functionality). Each needs a database connection to handle so

Answer 1

imo best approach is to initialize connections pool and use it in modules passing as parameter. mysql-pool is quite generic and easily adaptable to any db client

upd: node-pool is a generic db-agnostic pool