Perfectly Reproducible, Verified Go Toolchains
Go 1.21 is the first perfectly reproducible Go toolchain.
Slices Package: Compare
Series Here are all the posts in this series about the slices package. Binary Search Clip, Clone, and Compact Compare Contains, Delete, and Equal Introduction In the last post of this series I discussed the Clip, Clone, and Compact APIs from the slices package. In this post, I...
My favorite prime number generator
Many years ago I've re-posted a Stack Overflow answer with Python code for a terse prime sieve function that generates a potentially infinite sequence of prime numbers ("potentially" because it will run out of memory eventually). Since then, I've used this code many tim...
Limit goroutines with buffered channels
I was cobbling together a long-running Go script to send webhook messages to a system when some events occur. The initial script would continuously poll a Kafka topic for events and spawn new goroutines to make HTTP requests to the destination. This had two problems: It could cr...
Limit goroutines with buffered channels
I was cobbling together a long-running Go script to send webhook messages to a system when some events occur. The initial script would continuously poll a Kafka topic for events and spawn new goroutines to make HTTP requests to the destination. This had two problems: It could cr...
Limit goroutines with buffered channels
I was cobbling together a long-running Go script to send webhook messages to a system when some events occur. The initial script would continuously poll a Kafka topic for events and spawn worker goroutines in a fire-and-forget manner to make HTTP requests to the destination. This...
Limit goroutines with buffered channels
Control goroutine concurrency with buffered channels as semaphores. Prevent resource exhaustion with backpressure patterns in Go workers.
Structured Logging with slog
The Go 1.21 standard library includes a new structured logging package, log/slog.
A brief and incomplete history of modal text editors
In this post I’m going to talk about some old text editors you probably never heard of, what is modal text editing, and why people like it so much.
Writing a TOTP client in Go
A TOTP1 based 2FA system has two parts. One is a client that generates the TOTP code. The other part is a server. The server verifies the code. If the client and the server-generated codes match, the server allows the inbound user to access the target system. The code usually exp...