Install Atatus Ruby Agent in Heroku

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Sinatra installation steps

1. From Heroku dashboard, select the relevant application you have created and choose Atatus from the add-on page. There are two ways to choose the add-on.
   • From UI, you can click on the Configure add-ons and then select the subscription plan.
   • From Command line
       heroku addons:create atatus:$planlevel -a YOUR_APP
   
2. Go to Atatus dashboard by clicking on the Atatus add-on and navigate to the Settings » Account Settings » License Keys in Atatus and copy the Atatus APM License key.
3. From your terminal, go to your Sinatra app directory and set the license key and application name in heroku config as follows.
   heroku config:set ATATUS_APP_NAME='Sinatra App' -a YOUR_APP
   
   heroku config:set ATATUS_LICENSE_KEY='Your APM License Key' -a YOUR_APP
   heroku config:set ATATUS_NOTIFY_HOST='YOUR_ON_PREMISE_URL' -a YOUR_APP
   heroku config:set ATATUS_ANALYTICS_NOTIFY_HOST='YOUR_ON_PREMISE_URL' -a YOUR_APP
   
   # Verify config
   heroku config
   
4. Add the Atatus agent gem to your Gemfile.
   gem 'atatus'
   
5. Install the gem from your application root directory.
   bundle install
   
6. In config.ru file, use Atatus middleware inside the Sinatra app and start Atatus agent.
   require 'sinatra/base'
   require 'atatus'
   
   class MySinatraApp < Sinatra::Base
     # TODO: add this line inside your app class
     use Atatus::Middleware
   
     # your code here.
   end
   
   # TODO: Start Atatus agent.
   Atatus.start()
   
7. Run the following commands to commit the changes.
   git add .
   git commit -m "Add Atatus Agent"
   git push heroku main && heroku logs --tail
   
8. Access your server from your web app or mobile app or curl. You will visualize your application’s metrics within minutes.