What is flask? Flask is a web framework, it’s a Python module that lets you develop web applications easily. It’s has a small and easy-to-extend core. It does have many cool features like url routing, template engine. It is a WSGI web app framework. You can host a flask web server on sparked host! Let's find our how to do so

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Installing Flask

Head over to your service and click "Startup".



Under the "Python Packages" box, add flask to the list of packages. Just like so:



In the example below, we will also be using python-dotenv. Make sure to add this to the list of packages if you are using the example below.

Restart the service to install the package

Using Flask

Flask is easy to use and a lot of documentation is available for you to learn the ins and outs of the package. However, we will teach you how to setup a basic flask web server.

This is the example code that we have created that you can use. We are also using python-dotenv in addition to Flask.

import os
from dotenv import load_dotenv

from flask import Flask

app = Flask(__name__)

@app.route("/")
def hello():
    return "This is a flask web server hosted on Sparked Host!"

if __name__ == "__main__":
    load_dotenv()
    app.run(host='0.0.0.0', port=os.getenv('SERVER_PORT'))

Then create a file called .env. The contents of the file should like this:

SERVER_PORT=25788

Note: Make sure to change the port to the port that is assigned as "Primary" on your service.

If you access the URL, the result should look something like this




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Created By: Greg K

Updated on: 08/06/2023