Latest Articles

Go

Behavioral Design Patterns in Go

Master behavioral design patterns in Go — Observer, Strategy, Command, State, Chain of Responsibility, and Iterator. Learn idiomatic Go implementations using interfaces and …

Go

Buffered vs Unbuffered Channels

Master buffered and unbuffered channels in Go. Learn when to use each, deadlock prevention, and channel patterns for concurrent programming.

Go

Building CLI Tools with Cobra in Go

Master the Cobra framework for Go CLI tools — command structure, persistent and local flags, RunE error handling, argument validators, Viper configuration integration, shell …

Go

Building Interactive CLI Applications in Go

Build interactive CLI applications in Go — reading user input with bufio, secure password input with golang.org/x/term, multi-select menus, input validation, progress indicators, …

Go

Building REST APIs with Go

Build production-ready REST APIs in Go — API design principles, request handling, input validation, pagination, versioning, authentication middleware, error responses, and testing …

Go

Building System Utilities in Go

Build production-quality Go system utilities — disk usage analyzers, log parsers, process monitors, file watchers with fsnotify, structured output formatting, and distributing …

Go

Bytes, Runes, and Unicode in Go

Master Go's string model — how UTF-8 encoding works, when to use bytes vs runes, correct iteration, unicode/utf8 package functions, and the performance tradeoffs of []byte vs …

Go

Code Coverage and Quality Metrics in Go

Master Go code coverage — go test -cover, coverage profiles, HTML reports, per-function analysis, enforcing coverage thresholds in CI, golangci-lint configuration, and interpreting …

Go

Code Generation in Go

Master Go code generation — go:generate directives, stringer for enums, mockgen for test doubles, sqlc for type-safe SQL, writing custom generators with text/template and go/ast, …

Go

Command-Line Parsing and Flags in Go

Master Go's flag package — defining flags, custom flag types, subcommands, environment variable fallback, validation patterns, and when to reach for Cobra instead.