As a developer, there are times when you just need to quickly host an application online for testing — or even to show your progress to a client. In such cases, you may not necessarily need to buy a hosting service (yet) since you just need somewhere to host your application for testing purposes.
Navigate to a specific folder on your system that you want the application to reside in. Open your cmd and navigate to that folder, or use Git Bash.
Now if we go to our Heroku dashboard, we’ll see our application has been created already.
This is happening because the environment-config variables needed for the application to work are located in our .env file (in the root directory) aren’t on Heroku yet.