flask-app

Python Flask Web Application

📌 Overview

A simple Python Flask web application that displays a personalised greeting message in the browser.

The objective of this project was to understand:

• How a Flask application is structured
• How HTTP routing works
• Running a local development server
• Using Git for version control
• Basic cloud deployment considerations

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🛠 Tech Stack

• Python 3
• Flask
• Git
• Linux / WSL environment

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📂 Project Structure

.
├── app.py  
├── requirements.txt  
└── README.md  

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🧩 Application Code

from flask import Flask

app = Flask(__name__)

@app.route("/")
def hello_world():
    return "<p>Hello Faizal!</p>"

if __name__ == '__main__':
    app.run(host="0.0.0.0", port=8080)

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▶ Running the Application Locally

1. Install dependencies:

pip install flask

2. Run the application:

python3 app.py

3. Open your browser and visit:

http://127.0.0.1:8080

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🔁 Git Workflow

The following Git workflow was used:

git clone https://github.com/mfaizalbe/flask-app
git add .
git commit -m "Initial Flask application"
git push

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☁ Cloud Extension (Next Step)

As an extension, this application can be deployed to an AWS EC2 instance by:

• Launching an Ubuntu or Amazon Linux EC2 instance
• Configuring security group rules (open port 8080)
• Running the Flask app on the instance
• Accessing the application via the EC2 public IP

Future improvements may include:

• Using Gunicorn as a production server
• Adding Nginx as a reverse proxy
• Containerising with Docker
• Deploying via CI/CD pipeline

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📈 Learning Outcome

This project strengthened my understanding of:

• Backend web development fundamentals
• Request–response lifecycle
• Local development environments
• Git-based version control
• Introductory cloud deployment concepts

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🙏 Acknowledgements

NTU SCTP - Coaching 2: Building a Python Flask Application