Go Foundations
The most complete Go foundations course out there. 33 lessons and ~14 hours, from hello world to a tested, concurrent HTTP service on Go 1.27. You build feedstack, a real feed aggregator, one lesson at a time, and the course is updated with every Go release.
Free preview01 Why Go, why now: a 2007 language built for the AI era
- Lessons
- 33
- Modules
- 6
- Running time
- ~14 hours
- Before you start
- No prior Go needed
- Free to watch
- 4 lessons
- Last updated
- Sep 7, 2026
Part of
- Backend engineer trackStep 1 of 12
[01] Access
[02] Who it's for
- Programmers who know another language and want to learn Go properly, starting at hello world.
- Backend engineers who want to build a tested, concurrent HTTP service with the standard library.
- Anyone who reads Go at work and wants goroutines, channels and testing to click.
[03] What you'll learn
- 01Read and write idiomatic Go: slices, maps, pointers, errors as values, interfaces
- 02Model real data with structs, methods, embedding, and generics
- 03Fetch many sources at once with goroutines, channels, select, and context
- 04Ship it: table-driven tests, fuzzing, an HTTP server, logging and config
- 05Finish with one real project end to end: a concurrent feed aggregator
[04] Syllabus
Getting to hello
3 lessons33 min- 0112m
- 028m
- 0313m
Module quiz
5 questions, about 5 minutes
The building blocks
7 lessons137 min- 0415m
- 0517m
- 0619m
- 07
Pointers without fear (locked)
17m - 0819m
- 09
Slices, and how they really work (locked)
26m - 1024m
Module quiz
5 questions, about 5 minutes
Talking to the world
4 lessons110 min- 1134m
- 1223m
- 1328m
- 1425m
Module quiz
5 questions, about 5 minutes
Modeling with types
5 lessons128 min- 1521m
- 1629m
- 1720m
- 1825m
- 1933m
Module quiz
5 questions, about 5 minutes
Doing many things at once
6 lessons199 min- 20
Goroutines and the scheduler (locked)
32m - 2132m
- 2236m
- 2346m
- 2431m
- 2522m
Module quiz
5 questions, about 5 minutes
Shipping it
8 lessons221 min- 2629m
- 27
Table-driven tests and benchmarks (locked)
37m - 28
Fuzzing the feed parser (locked)
22m - 2930m
- 30
Writing the HTTP server (locked)
36m - 31
Testing HTTP handlers (locked)
26m - 32
Logging, metrics, and configuration (locked)
31m - 33
Where to go next (locked)
10m Module quiz
5 questions, about 5 minutes
Certificate
Finish every lesson and pass every module quiz
[05] Read first
Why Learn Go in 2026: The Honest Case for the AI Era
Is Go worth learning in 2026? What Go is for, what it deliberately leaves out, where it runs the industry, and why a language built for reviewers is the right language when a model writes the first draft.
[06] Questions
- Why call it the most complete Go course?
- 33 lessons and about 14 hours of video, and none of it is a syntax tour. Values, control flow, functions, pointers, strings, slices, maps, structs, errors, defer, io, HTTP and JSON, methods, interfaces, embedding, any, generics, goroutines, channels, fan-out fan-in, select and context, sync, panic and recover, testing, fuzzing, project structure, an HTTP server, handler tests, logging, metrics and config. Every one of them lands in the same project, so you see how the pieces fit, not just what each one is.
- Is every lesson recorded?
- Yes. All 33 lessons are recorded and reviewed, including the closer on where to go next, and each module ends in a quiz.
- Do I need prior Go experience?
- No. It starts at hello world. Experience in any other language helps but isn't required.
- Do I get the code?
- Yes, all of it, publicly. The feedstack repo at github.com/karnstack/feedstack has one git tag per lesson, so you can check out the exact tree a lesson ends on or diff two tags to see what changed. Every lesson page links its tag.
- What Go version does it use, and what happens when Go moves on?
- Go 1.27, standard library first, with third-party packages only when they earn it. We guarantee updates: every Go release gets the course re-checked and the lessons that moved get revised, and you get those updates at no extra cost.
- How is this different from the Go tour?
- The tour shows syntax. This course builds one production-shaped project and teaches the judgment: when to use pointers, which concurrency shape to pick, how to test.
- What if I can't afford it?
- Email mail@karnstack.com from a student address (.edu, .ac.in, or equivalent) and we'll work something out.
- Is there a refund?
- Yes. 7 days, no questions, mail@karnstack.com.
[07] How it's made
The curriculum is curated by karnstack and reviewed by senior engineers in the industry before it ships. Narration is an AI voice (ElevenLabs) reading human-written, human-reviewed scripts. Read how courses are made.