Deploy the Flask application on Heroku in just 5 minutes

 Deploy Flask Application on Heroku

For small application, you can consider deploying it on any of the following hosted platforms, all of offer free plans for the small application

• Heroku
• dotcloud
• webfaction

Prerequisite:

You must have installed git in you system

Step 1: Install Heroku

    To install Heroku CLI on macOS, first ensure that you have installed Homebrew installed on your machine

brew tap heroku/brew && brew install heroku

If you are using windows or any other system you can click here

Step 2: Create Python virtual environment

python3 -m venv foldername source foldername/bin/activate cd foldername

Step 3: Install Flask, gunicorn

pip3 install flask gunicorn

Step 4: Create an app folder

mkdir app cd app vi main.py

Step 5: Create Python app

main.py

from flask import Flask app= Flask(__name__) @app.route('/') def index(): return "<h1>Welcome to Blogger</h1>"

Step 6: Create the script to run the web app

run.py

from app.main import app if __name__ == "__main__": app.run()

To verify, if the app works, try running this

python run.py

In your browser, go to the IP given and see if it works

Step 7: Make required files to deploy on Heroku

create requirement.txt file

pip freeze > requirements.txt

Create Procfile 

web: gunicorn :app

Step 8: Deploy the app to Heroku

heroku login

Create Heroku app

heroku create <app-name>

Add heroku app to remote

git init heroku git:remote -a <heroku-app-name> git remote -v

Deploy the flask app to Heroku

git add . git commit -m "Init deploy"

And Lastly, push the app to browser

git push heroku master

All done, your application should be live

Keep Reading and Happy Coding💜