This is your Week5's 4005CMD2425MAYSEP Tutorial (Week5.1 page's materials as found on Aula). How to Republish messages using the Pahomqtt client
The Problem Flight Information – The Problem
Data for Live flight arrivals is displayed on a web page and is updated on a regular basis (every 60 seconds is common).
When the web page is updated then usually the entire contents of the page is sent to the web browser regardless of the changes.