Create a local server using Python application

To use a Flask app

1. Create a virtual environment. Python 3 comes with venv to create virtual environments. In your project directory, create a new virtual environment and activate it.

    python3 -m venv venv
    . venv/bin/activate

2. Install Flask:

    pip install Flask

3. Create a new file called app.py and create the application:

    from flask import Flask, request, Response
    app = Flask(__name__)
    @app.route('/webhook', methods=['POST'])
    def webhook():
     print(request.get_json())
     return Response(status=200)

4. Run the application: bash export FLASK_APP=app.py flask run -h localhost -p 3000

This application will run on port 3000, which is the same port you should have configured for ngrok. Now, when you make a call to or receive a call from your Vonage Business Communications number, the application will print the events to the console.