Hosting a Simple Sinatra App on Heroku

https://passg.herokuapp.com is the sinatra app on heroku.

This is how it got there.

• First Create an account, or sign-in to an already existing account.

• Create an app.

  • In my scenario, I connected to github from where I deploy my app, whenever there is a push to the master branch of my repo.

• You will need a Gemfile , Gemfile.lock, Config.ru

• Using touch Gemfile in your terminal should create a Gemfile for you.

  • In this Gemfile, list out the gems that you will want installed with your app. eg.

  # Gemfile
  
  source "https://rubygems.org"
  gem "sinatra"
  gem "sinatra-contrib"
  

• Run bundle install in the same directory with the Gemfile and this will create for you, Gemfile.lock. Note: The bundler gem would have to be installed to do this. gem install bundler Note: Heroku requires bundler version 2.

• In your Config.ru file,

# Config.ru

require './main'
# ./main refers to  "main.rb"

run Sinatra::Application

• With this, your app is ready to deploy.

• You might encounter an issue,after you deploy to heroku, especially with Heroku’s bunder version.

• The defualt buildpack does not come with bundler version 2. To solve this, visit your heroku dashboard, under settings, add this buildpack to your apps settings. https://github.com/bundler/heroku-buildpack-bundler2 Remove the default ruby buildpack, you should be ready to go then