Flask is a popular and mature microservices framework for Python that you can use for creating APIs, websites, and just about any other networked service you can imagine. Flask is certainly not the only option available for Python, even though its maturity, range of add-ons, and extensions plus the availability of quality documentation and tutorials make it an excellent choice.
We could conceivably do all of the following coding exercises in this chapter using just the core Flask framework; however, there are quality extensions that will make our life much easier. These extensions are Flask-RESTful for creating RESTful API services and Flask-SocketIO for building Web Socket services.
The official API documentation for Flask-RESTful and Flask-SocketIO (or any Flask extension for that matter) generally assume existing knowledge of the core Flask framework, classes, and terminology. If you can't seem to find answers to your questions...
