Sundeep Gupta

Originally published on Medium.
We’ve been using Rx for a while now and across a varietyof projects. Yet we continue to learn new things - in this case, a clear understanding of FlatMap.
My team and I recently discovered a bug in one of our projects, and the culpritturned out to be the FlatMap operator—or rather, our misuse of it. I don’tknow why, but FlatMap was a recurring source of confusion. (And the officialRx docs didn’t reallyshed...

Roll your own Swift networking code
My tolerance for adopting 3rd party libraries is relatively low - and networking is no different. In this post I describe a pattern to help write your own networking code.
Preface: Swift 4 has the awesome new Codable type, so some of this code may not apply if you’re using Swift 4....

Perhaps a more obvious topic, but I’ve been seeing this type of thing recently, and I’m always confused by it. Here’s a rundown on how I like to handle errors for flexibility and expressiveness.
Optional way :(
Take this function for example:

Is your Swift DI implementation completely safe? That’s what we thought until we uncovered a strange Swift implementation. Here we expose the issue and resolve it in a thread-safe way.
Note: Code examples are in an Xcode playground hosted on GitHub.
PODI Overview...