Going back to Go: A series

Revisit basic of Go (Golang) and new features with runnable examples.

Background

I haven't used Go extensively for a while, and I am not keeping up with recent releases of Go. I think it is a good time to recap frequently used features and explore new features and write some simple projects to practice them.

Plan

NOTE: Subject to change, link to blogs will be updated when they are published (if ever).

Language features

• goroutine, channel, concurrency (concurrency is not parallelism), error group, singleflight etc. context.
• generic, never used it directly after release ...
  • https://go.dev/tour/generics/1
  • https://go.dev/blog/generic-slice-functions
  • https://go.dev/blog/deconstructing-type-parameters
• reflection e.g. struct tag
• iterator, yield? https://go.dev/blog/range-functions
• embed asset
• mod and the new workspace?
  • https://go.dev/blog/toolchain
  • https://go.dev/blog/gonew create template

Patterns and Libraries

• logging, there is a new interface for structured log
  • https://go.dev/blog/slog
• error handling, error wrapping is the last update I looked into

Network

• basic usage of standard library, net, net/http
• implement application protocols, e.g. http 1, websocket on top of low level network.
  • https://github.com/5m-friday/http-protocol-golang/blob/master/tcp-http/main.go
  • https://gist.github.com/jschaf/93f37aedb5327c54cb356b2f1f0427e3 syscall
  • https://www.krayorn.com/posts/http-server-go/ code crafters https://codecrafters.io/
• a high level wrapper for quick http client/server scripts

Database

• database/sql already forgot it ... don't use it often TBH
• sqlite? cgo or write a pure go reader

Projects to practice

• Update https://github.com/dyweb/gommon with latest language features
  • goimports with group support, not sure if there is still such thing after this time
• A cli to show time in different timezones, the old pm tm port to standalone app.
• A static web server for file sharing with local network on trusted devices
• Tennis racket price crawler, we can compare cursor code and human written code
• DB? Workflow, data analysis etc.?
• ? LLM related projects? https://go.dev/blog/llmpowered
• https://github.com/practical-tutorials/project-based-learning?tab=readme-ov-file#go

References

• https://go.dev/tour/list
• https://tour.ardanlabs.com/tour/eng/list