thecodex.expert · The Codex Family of Knowledge
Free Course

Learn Go

Three tracks taking you from your first goroutine to production-ready servers — the language that powers Docker, Kubernetes, and the modern cloud. Free forever. No account.

🕐 ~12 hours3 tracksGo 1.23No prior Go needed

✅ Go has a gentle learning curve compared to Rust or C++. The syntax is small, the compiler is fast, and most errors are clear. If you know Python or Java, idiomatic Go will feel unfamiliar but learnable. The hardest part is unlearning object-oriented habits: Go has no classes.

Track 1

Foundations

Syntax, structs, and first goroutines

  • Variables, types, and control flow
  • Functions, multiple return values, defer
  • Structs, methods, and pointers
  • Slices, maps, and range
  • First goroutines and channels
🕐 ~4 hours5 lessons + quiz
Start Foundations →
Track 2

Practitioner

Interfaces, concurrency patterns, and error handling

  • Interfaces and implicit satisfaction
  • Goroutines, WaitGroups, and select
  • Error handling: errors.Is, errors.As, %w
  • Context: cancellation and deadlines
  • net/http and encoding/json
🕐 ~4 hours5 lessons + quiz
Start Practitioner →
Track 3

Advanced

Generics, testing, performance, and production patterns

  • Generics: type parameters and constraints
  • Testing, benchmarks, and go test
  • Modules and dependency management
  • Performance: escape analysis and profiling
  • Production patterns: graceful shutdown, middleware
🕐 ~4 hours5 lessons + quiz
Start Advanced →

Practice environment

Run Go in your browser — no installation needed to start.

Go Playground →