1+ week, 17+ hour ago   (178+ words) This guide breaks down what each technology actually does well, where the tradeoffs bite, and how to decide between them — or combine them — for a real production system. GraphQL is a query language for APIs, developed to let clients ask…...

2+ week, 5+ day ago   (856+ words) When building backend systems, choosing the right communication protocol can have a significant impact on performance, maintainability, and scalability. REST is still the most common choice for public APIs, while GraphQL has become popular when clients need flexible data fetching....

2+ week, 6+ day ago   (119+ words) Spent the last few weeks building an HTTP/2 server from scratch in Go. Full RFC 9113 - framing, HPACK, stream state machine, flow control, TLS enforcement, 145/146 h2spec tests passing. The fun part was RFC 9218 stream priorities. Browsers already send priority: u=N on…...

3+ week, 4+ day ago   (461+ words) When a service "can't connect," the app logs and the network rarely tell the same story. tcpdump settles the argument: it shows what actually went over the wire, not what the client library claims happened. Learning to read three packet…...