What is the proper way to use the node.js postgresql module?

Question

I am writing a node.js app on Heroku and using the pg module. I can\'t figure out the \"right\" way to get a client object for each request that I need to query the database

Answer 1

Here's how I do it, sort of an "all of the above approach"

Promise = require 'bluebird'
pg = module.exports = require 'pg'

Promise.promisifyAll pg.Client.prototype
Promise.promisifyAll pg.Client
Promise.promisifyAll pg.Connection.prototype
Promise.promisifyAll pg.Connection
Promise.promisifyAll pg.Query.prototype
Promise.promisifyAll pg.Query
Promise.promisifyAll pg

connectionString = process.env.DATABASE_URL

module.exports.queryAsync = (sql, values) ->
  pg.connectAsync connectionString
  .spread (connection, release) ->
    connection.queryAsync sql, values
    .then (result) ->
      console.log result.rows[0]
    .finally ->
      release()