First, crossbar.io and autobahn 18.4.1 were installed.
The crossbar "Hello" app was installed and ran successfully.
The front and backend of the website was then examined with the inspect element function to observe the JavaScript running in the background.
Mosquitto was then installed and the publisher and subscriber were successfully tested.
Paho-MQTT was then installed. pub and sub.py were then tested.
Then, sub and pub-multiple.py were tested.
pub and subraspi.py were then tested which published and subscribed to the pi's system information, such as its CPU temperature, usage and the date and time.