How to Deploy a Go App to Heroku

Deploy your Go app to Heroku by adding a Procfile and using the Heroku Go buildpack.

1. Create a file named Procfile in your project root with the content web: go run main.go.
2. Initialize a Git repository and commit your code with git init and git add . followed by git commit -m "initial commit".
3. Log in to Heroku with heroku login.
4. Create a new Heroku app with heroku create your-app-name.
5. Set the Go buildpack with heroku buildpacks:set heroku/go.
6. Push your code to deploy with git push heroku main.

Heroku runs your Go code as a single executable file on their servers. You tell Heroku which file to run using a simple text file called a Procfile. Once you push your code, Heroku automatically compiles and starts your application.