Chapter 8. Live Data and a Web Service

 

Data is a precious thing and will last longer than the systems themselves.

 
 --Tim Berners-Lee

For many today, it is hard to imagine that, at one time, most personal and work computers did not connect to a wider network. Not that long ago, a spontaneous network stream of instant notifications to a device in your pocket was unthinkable.

Newsfeeds, streams, and updates are the standard of web applications today. It is not enough for data to be accessible or discoverable. It has to reach out to the user, ideally even before they know they want it.

Freeing the data

The data that was collected by the data monitor is rather trapped in the database, and while the database system PostgreSQL has a reasonable display in ...

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