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.

2. Install Flask:

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

4. Run the application:

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.