/Fibonacci-Flask-Heroku

Primary LanguageHTML

Fibonacci Calculator

Introduction

This Flask application provides a simple web interface to calculate Fibonacci numbers. It accepts a numerical input from the user and calculates the corresponding Fibonacci number. The application is designed to be user-friendly and is built with Bootstrap for a responsive layout.

Getting Started

Prerequisites

Before you can run the Flask application, you need to have Python installed on your machine. You also need to install Flask if you haven't done so already. You can install Flask using the requirements file provided in this repository. To do so, run the following command in your terminal:

pip install -r requirements.txt

Running the App

To run the Flask app, you need to set the environment variable FLASK_APP to the file that runs your application and then call flask run in the command line. Follow these steps:

  1. Navigate to the project directory in your terminal.
  2. Set the environment variable for Flask. On Unix and Mac, use:
export FLASK_APP=app.py

On Windows, use:

set FLASK_APP=app.py
  1. Run the application:
flask run

Installing ngrok

ngrok download page

Follow these steps to install ngrok:

  1. wget https://bin.equinox.io/c/bNyj1mQVY4c/ngrok-v3-stable-linux-amd64.tgz
  2. tar xvzf /path/to/ngrok-v3-stable-linux-amd64.tgz
  3. chmod +x ngrok
  4. mv ngrok /path/to/repo/
  5. cd /path/to/repo/
  6. ./ngrok authtoken YOUR_AUTH_TOKEN

Running the Application with run.sh Script (for lxhalle)

This project includes a convenient script named run.sh that automates the process of setting up and running the server on lxhalle. This script handles the creation of a virtual environment, installing dependencies, downloading and setting up ngrok, and starting the Flask application via Gunicorn with the appropriate configurations.

Prerequisites

Before running the script, ensure you have the following installed:

  • Python 3
  • pip (Python package manager)
  • wget (for downloading ngrok)

Running the Script

  1. Clone the Repository: First, clone the repository to your local machine and navigate to the repository folder:

    git clone [Repository URL]
cd [Repository Folder]

  2. Execute the Script: Run the run.sh script with the following command:

    bash run.sh

  3. Script Execution: The script will perform the following actions:

    • Check for and create a virtual environment (venv) if it doesn't exist.
    • Activate the virtual environment and install the required dependencies from requirements.txt.
    • Download and set up the latest version of ngrok for Linux s390x architecture.
    • Start the Gunicorn server hosting the Flask application on localhost:5000.
    • Start ngrok to create a public URL tunneling to the Gunicorn server.

  4. Accessing the Application: Once the script finishes execution, it will display the ngrok URL, which you can use to access the application from any web browser:

    ngrok URL: [Public ngrok URL]

    Copy and paste this URL into your browser to interact with the Flask application hosted on lxhalle.

Logs

  • Gunicorn logs are saved in gunicorn.log.
  • ngrok logs are saved in ngrok.log.

You can monitor these logs for debugging and monitoring the application's behavior.