Heathercoraje / pg-walkthrough

postgres database with nodejs

Author: @shiryz

Maintainer: TBC

Getting Started

Clone this repo: git clone https://github.com/foundersandcoders/pg-walkthrough.git

Learning Outcomes

Building a database

• Creating a build script in a .sql file
• Using the DROP and IF EXISTS commands, for use on a test database
• What cascade is for and when to use it
• Execute a transaction using BEGIN & COMMIT

Connecting to a database

• Connecting to a PostgreSQL server from a node server, including the setup of environment variables (heroku)

Running queries in Node

• Understanding what a connection pool is and how to initialise and configure one using pg
• Using pool.query with callbacks, to execute single queries to the database
• Using parameterised queries (to prevent SQL injection)
• Serving the query results to the front end

Postgres Connection Walkthrough

This exercise is designed to get you familiar with connecting to a database, querying it and viewing that information. We'll be using the npm module pg to connect our node server to a locally-hosted Postgres database.

Inspired by Matthew Glover and his awesome pg-app