The Compiler is Your Friend
One sentiment I see from people coming from dynamically typed languages (python, ruby) or even Java and C is a general dismissiveness about static typing and compilers. At best, the sentiment is “Oh, well it makes sure my input is an Int, or a Float, or a Bool… That’s cool I guess, but I can do that with TDD”. At worst, static typing is seen as something to fight against – shackles that limit our creativity and bar us from what we really want to do and the beautiful programs that we could write if only the type-checker got out of our way.
Writing an API Client with akka-http
Stockfighter is a CTF (short for Capture the Flag) game that I first heard about at Microconf 2015, but haven’t gotten a chance to play up until very recently. I plan on posting more about my impressions of the game later, but very shortly: it is a series of programming challenges based on the concept of stock exchanges and ways to manipulate stock exchanges. Along with the web UI, a public json API is exposed as a mechanism for interacting with the game. There did not seem to be any Scala clients floating around, so I took this as a chance to play around with akka-http.
Purity, Types, and Other Functional Nonsense
A while ago the topic of lenses came up in one of the chatrooms at work. This led to a discussion on the (ahem) suboptimal readability of advanced functional programming code examples, and how a lot of the fancier constructs are by-products of being super hardcore about purity. This led to me writing a great big email to the team that generated a whole bunch of thoughtful discussion on FP, complexity, and straw men with free lunches. I was also told I should transcribe to blog form, so here it is reproduced (mostly) faithfully:
Trying to take another shot at this whole writing-about-tech thing. :) Please excuse appearances while this blog gets revamped for the umpteenth time.