Introduction to Flask

Like most popular open source projects, Flask has very good documentation, which is available at https://flask.palletsprojects.com/en/1.1.x/. If you'd like to dig deeper into Flask, the project documentation would be a great place to start.

I would also highly recommend Miguel Grinberg's work (https://blog.miguelgrinberg.com/) related to Flask. His blog, book, and video training have taught me a lot about Flask. In fact, Miguel's class, Building Web APIs with Flask, inspired me to write this chapter. You can take a look at his published code on GitHub: https://github.com/miguelgrinberg/oreilly-flask-apis-video.

Our first Flask application is contained in one single file, chapter9_1.py:

from flask import Flask
app = Flask(__name__)

@app.route('/')
def hello_networkers():
    return 'Hello Networkers!'

if __name__ == '__main__':
    app.run(host='0...