Go SELF

Become a Go developer through practice. From "Hello World" to production-ready microservices with tests and CI/CD. 72 levels and 1000+ tasks with instant validation. Build REST APIs, work with concurrency, test and profile code — every task brings you closer to real work. The most direct path to a profession that pays 40% more.

Level 1
Unavailable
First Program in Go
Level 2
Unavailable
Numbers, Strings, and Data Input
Level 3
Unavailable
Conditional Statements and Logic
Level 4
Unavailable
for Loops
Level 5
Unavailable
IDE Installation and Project Setup
Level 6
Unavailable
Variables, Types, and Formatting
Level 7
Unavailable
Numbers, Precision, and Overflows
Level 8
Unavailable
Constants, iota, and Bitwise Operations
Level 9
Unavailable
Functions and Error Return
Level 10
Unavailable
Packages and Imports
Level 11
Unavailable
Arrays and Slices (len/cap, make/append)
Level 12
Unavailable
Slices and Memory Ownership
Level 13
Unavailable
Slice Operations
Level 14
Unavailable
Strings, Bytes, Runes, and UTF-8
Level 15
Unavailable
Maps (map) and set Pattern
Level 16
Unavailable
Errors as Values
Level 17
Unavailable
Error Wrapping (errors.Is/As)
Level 18
Unavailable
defer, panic, and recover
Level 19
Unavailable
Pointers and Value Semantics
Level 20
Unavailable
Systematization of Collections and Errors
Level 21
Unavailable
Structures and Tags (struct tags)
Level 22
Unavailable
Methods and Receivers (receivers)
Level 23
Unavailable
Composition (embedding)
Level 24
Unavailable
Interfaces and nil Traps
Level 25
Unavailable
Type Assertions (type assertion)
Level 26
Unavailable
io.Reader/Writer and context
Level 27
Unavailable
Generics
Level 28
Unavailable
Package Architecture and Dependency Injection
Level 29
Unavailable
Unit Tests (table-driven)
Level 30
Unavailable
Formatting and Linters (gofmt, vet)
Level 31
Unavailable
Advanced go test
Level 32
Unavailable
Working with Git and GitHub
Level 33
Unavailable
Debugging with Delve
Level 34
Unavailable
Time and Timeouts (time)
Level 35
Unavailable
Go Modules (go.mod)
Level 36
Unavailable
Documentation (godoc, README)
Level 37
Unavailable
Clean Code in Go
Level 38
Unavailable
Quality Rules and Releases
Level 39
Unavailable
Files, Paths, and Permissions
Level 40
Unavailable
Input/Output Streams (io, bufio)
Level 41
Unavailable
File System (fs)
Level 42
Unavailable
Reliable Writing and Backups
Level 43
Unavailable
Testing File Code
Level 44
Unavailable
Resource Embedding (embed)
Level 45
Unavailable
JSON Basics
Level 46
Unavailable
Strict JSON and Versioning
Level 47
Unavailable
Working with CSV
Level 48
Unavailable
CLI Basics (flag)
Level 49
Unavailable
Subcommands (FlagSet)
Level 50
Unavailable
CLI UX (help, Exit Codes, Environment)
Level 51
Unavailable
Output Formats and Filtering
Level 52
Unavailable
Logging (log/slog)
Level 53
Unavailable
CLI Testing
Level 54
Unavailable
Build and Cross-Compilation (ldflags)
Level 55
Unavailable
Error Standardization
Level 56
Unavailable
HTTP and API Design
Level 57
Unavailable
URL, Query Parameters, and Filters
Level 58
Unavailable
HTTP Client
Level 59
Unavailable
HTTP Server and Routing (ServeMux)
Level 60
Unavailable
Routing Patterns (Go 1.22+)
Level 61
Unavailable
CRUD and Validation
Level 62
Unavailable
Middleware (Authorization, Limits, recover)
Level 63
Unavailable
Graceful shutdown
Level 64
Unavailable
HTTP Server Testing
Level 65
Unavailable
Goroutines and WaitGroup
Level 66
Unavailable
Channel Basics (Channels)
Level 67
Unavailable
select, Timeouts, and Goroutine Leaks
Level 68
Unavailable
Synchronization (sync, Mutex, atomic)
Level 69
Unavailable
Worker pool
Level 70
Unavailable
Advanced context
Level 71
Unavailable
Race Detector and Benchmarks (pprof)
Level 72
Unavailable
Course Summary and Further Development
Level 73
Unavailable
Final Project