Lessons
Go · Medium
Go · Medium. Ten lessons. Open-book quizzes. Lesson 1 free.
10 lessons · The Host · Lesson 1 free
Pass all ten lessons for the certificate. Sample · Claim
Lesson 1 · On the house
Context
Cancellation and deadlines.
Lesson 2
sync.Mutex and WaitGroup
Protect shared state; wait for workers.
Lesson 3
Generics sketch
Type parameters on functions and types.
Lesson 4
encoding/json
Marshal and unmarshal structs.
Lesson 5
net/http handlers
HandlerFunc and ServeMux.
Lesson 6
io.Reader and Writer
Stream interfaces.
Lesson 7
Embedding and composition
Promote fields without inheritance trees.
Lesson 8
Modules and semantic import versioning
v2+ paths and compatibility.
Lesson 9
Profiling sketch
pprof CPU and heap.
Lesson 10
Medium capstone
Handler-shaped function with context and JSON.
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