It's a pity you didn't finish the series. It's really interesting and I'd like to see the missing parts. Even if you can put the code on Github, for instance.
Thanks anyway!
Hi David, thanks for taking the time to read this article. Unfornutaley I am sorry that I just did not have the time on my hands to finish this series.
There are advancements in Swift like async-await & Combine which I wish to explore further and time willing continue this series with them.