RSS in action
Let's take the concept of Rich Site Summary / Really Simple Syndication (RSS) and inject some real potential delays to identify where we can best utilize goroutines in an effort to speed up execution and prevent blocking code. One common way to bring real-life, potentially blocking application elements into your code is to use something involving network transmission.
This is also a great place to look at timeouts and close channels to ensure that our program doesn't fall apart if something takes too long.
To accomplish both these requirements, we'll build a very basic RSS reader that will simply parse through and grab the contents of five RSS feeds. We'll read each of these as well as the provided links on each, and then we'll generate ...