slytton / deployingToHerokuWithPostgresqlAndKnex

Deploying to Heroku with Postgresql and Knex

Slides: http://slides.com/akyunaakish/deploying#/

Fork and clone

• Install dependencies:

$ cd deployingToHerokuWithPostgresqlAndKnex
$ npm install
$ createdb knex-heroku
$ touch .env

• Run the migration and seed files locally:

$ knex migrate:latest --env production
$ knex seed:run --env production

• Confirm thats all working by running nodemon and checking if 3 amphibians are rendered at localhost:3000

Setting up for Heroku

• Require the dotenv module at the top of your knexfile.js

require('dotenv').load();

module.exports = {

  production: {
    client: 'postgresql',
    connection: 'postgres://localhost/knex-heroku',
    pool : {
      min: 2,
      max: 10
    }
  }
};

• Now add the connection from your knexfile.js to your .env file as an environment variable called DATABASE_URL

//in the .env file
DATABASE_URL=postgres://localhost/knex-heroku

• Now you'll need to change your connection in your knexfile.js to use the environment variable

//knexfile.js
require('dotenv').load();

module.exports = {

  production: {
    client: 'postgresql',
    connection: process.env.DATABASE_URL,
    pool : {
      min: 2,
      max: 10
    }
  }
};

• Good, now your database connection will be able to use either your local environment variable or the upcoming heroku database environment variable

• Create a heroku app in the root directory of this exercise

$ heroku create

• Setup a remote heroku postgresql database with the free hobby-dev package

$ heroku addons:create heroku-postgresql:hobby-dev

• Push up your code to heroku

$ git add -A
$ git commit -m"ready for heroku"
$ git push heroku master

• Now run your migrations and your seeds via heroku

$ heroku run knex migrate:latest
$ heroku run knex seed:run

• Check your results

$ heroku open

• Congrats you have a remote heroku database !

STRETCH GOAL

• Get together with your team and deploy the application you made at Fridays Hackathon