Automated testing for staging Apps

I have developed a process to update the pull request status based on staging app deployment using Github Actions and Heroku API.

Entire journey and workflow can be found here: https://niteo.co/blog/staging-like-its-2020

The journey consists of:

• A simple custom GitHub Action for small & medium projects. It takes care of all the burden.

• A bit complex process for larger projects which can be helpful in reducing unnecessary costs.