Deploying Flask App on Heroku
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How to Deploy a Flask App on Heroku?
Flask is a lightweight Python web framework that makes building applications simple and efficient. But once your app is ready, the next step is deploying it so others can access it. Heroku, a cloud platform, offers a seamless way to host and scale Flask applications without worrying about server management.
To deploy your Flask app on Heroku, start by setting up a requirements.txt file, which lists all dependencies like Flask and Gunicorn. Next, create a Procfile—this tells Heroku how to run your app. A typical entry looks like:
web: gunicorn app:app
where app is the name of your Python file and Flask instance.
Initialize a Git repository if you don’t already have one, then use the Heroku CLI. Run heroku create to generate your project, followed by git push heroku main (or master, depending on your branch). Heroku will build your application, install dependencies, and host it.
Once deployed, your Flask app will be live at a Heroku-generated URL, ready to share with the world. You can even scale it with a single command.
Deploying Flask on Heroku is beginner-friendly, cost-effective, and reliable—making it a go-to choice for Python developers who want their apps accessible online quickly.
Read More
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