A deep-dive on what conditional HTTP requests are, reviewing the main pieces of the RFC, explaining the semantics of validators and preconditions, then showing examples how you can implement conditional HTTP GETs in your web app.
A nice primer on the many aspects of building full-text search, such as: data preparation, indexing, searching, term frequency, and computing relevance. It’s amazing what 150 lines of code can get done…
Learn the history and evolution of same-origin policy and CORS, understand CORS and the different types of cross-origin access in depth, and learn (some) best practices.
For folks that do not have experience with lower level languages, understanding bytes and how to work with them can be challenging.
That’s why I wrote this article, taking a simple idea such as a Slack chat, turning the interactions (join/leave channel, send message to channel or user, etc) into a TCP protocol. Then I show the reader how they can implement the protocol in Go, by building a concurrent TCP server and learn more about bytes and working with bytes in the process.
I love it when people take things we do understand (like basic Slack interactions) and use them to teach us something we don’t understand (how to build a TCP protocol).