Check out the blog post >> http://mherman.org/blog/2015/02/12/postgresql-and-nodejs
This is a basic single page application built with Node, Koa, Angular, and PostgreSQL.
- Clone the repo
 - Install dependencies: 
npm install - Start your Postgres server and create a database called "todo"
 - Create the database tables: 
node server/models/database.js - Start the server: 
$ npm start 
This comes with a load test using Apache Bench that by default exercises the API endpoint for the /api/v1/todos service:
sh tests/load-test.shUsing this load test it is possible to verify several things:
- that the database is using as many connections as expected (it polls PostgreSQL for the number of active connections while it runs)
 - the performance of the combined system under different loads
 
See the comments in the script for more information.