How to Install & Run Python Flask in Google Colab with Ngrok | Step-by-Step Guide

Google Colab

October 13, 2024

In this video, I’ll show you how to install and run a Python Flask web application in Google Colab and expose it to the internet using Ngrok. Learn how to set up Flask, handle Ngrok for public URLs, and test your Flask app live. This tutorial is perfect for Python developers who want to quickly deploy their Flask apps in a cloud environment using Colab. Follow the easy, step-by-step instructions and start building your Flask applications right in your browser!

🚀 In this video, you will learn:

How to install Flask in Google Colab
How to authenticate and configure Ngrok
How to run and access your Flask app using a live Ngrok URL

First Create an Account in ngrok:
https://dashboard.ngrok.com/domains

You will get authentication token here: https://dashboard.ngrok.com/get-started/your-authtoken

Create a domain here to public url: https://dashboard.ngrok.com/domains

Then in your Google Colab, execute the below command, check the youtube video (https://youtu.be/4DbVWtqAVjw):

!pip install flask-ngrok

!pip install pyngrok

# Authenticate Ngrok

#!ngrok authtoken ‘XXXXXYYYYY’

!ngrok authtoken XXXXXYYYYY

# Create Flask app

from flask import Flask

app = Flask(__name__)

@app.route(‘/’)

def home():

return”Hello World in Python Flask Era”

# Expose the Flask app via Ngrok

from pyngrok import ngrok

# Create a tunnel to the Flask app

public_url = ngrok.connect(5000)

print(“Ngrok tunnel URL:”, public_url)

# Run Flask app

app.run()

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