/heroku-deployment

heroku

heroku is also simple deployment software

setup

  • download the heroku command line interface
  • once installed, create a heroku account on heroku.com
  • after you've created an account, login on your command line by running heroku login

package.json

add the following to your package.json file:

  • this will let Heroku know that you want to create a Node.js environment:
"engines": {
  "node": "7.4.0"
}
  • you can also add an optional "heroku-postbuild" field which will get run after npm install. Here you can add things like webpack or run seed files - basically anything you'd want to run before npm start

server.js

In your server.js make the following changes:

  • change you app.listen to include process.env.PORT || 3000 (replace '3000' with whatever your port number is). You need to include process.env.PORT because Heroku uses this to dynamically assign a port number:
app.listen(process.env.PORT || '9999', () => console.log('Listening on port 9999'));

heroku create

To create your app on heroku, run the following command (from within your main project repo):

  • heroku create

if you now go to heroku.com and look at your projects, you should see a newly created project with a weird somewhat random name (you can chane this name on project settings on the heroku website)

database setup

  • Similarly, change your Sequelize database connection to the following:
let sequelizeConnection = process.env.NODE_ENV === 'production' ? new Sequelize(process.env.DATABASE_URL) : new Sequelize('postgres://natemaddrey@localhost:5432/music-db');
  • Then, from the command line run heroku addons:add heroku-postgresql:hobby-dev. This will create a new database instance for your deployed app.

deployment

  • to deploy new code, run git push heroku master
  • then open the URL that heroku gives you in your browser (it can sometimes take up to 30 minutes to go live)