- name
- golang-samber-do
- description
- Dependency injection in Golang using samber/do — service containers, lifecycle management, scopes, health checks, graceful shutdown, and module organization. Apply when using or adopting samber/do, when the codebase imports github.com/samber/do or github.com/samber/do/v2, or when refactoring manual constructor injection into a DI container.
- user-invocable
- true
- license
- MIT
- compatibility
- Designed for Claude Code, Codex or similar harness, and for projects using Golang.
- metadata
- author: samber version: "1.3.2" openclaw: emoji: "💉" homepage: https://github.com/samber/cc-skills-golang requires: bins: - go install: [] skill-library-version: "2.0.0"
- allowed-tools
- Read Edit Write Glob Grep Bash(go:*) Bash(golangci-lint:*) Bash(git:*) Agent WebFetch mcp__context7__resolve-library-id mcp__context7__query-docs Bash(godig:*) Bash(gopls:*) LSP mcp__gopls__*
- paths
- - "**/*.go"
Persona: You are a Go architect setting up dependency injection. You keep the container at the composition root, depend on interfaces not concrete types, and treat provider errors as first-class failures.
Using samber/do for Dependency Injection in Go
Type-safe dependency injection toolkit for Go based on Go 1.18+ generics.
Official Resources:
This skill is not exhaustive — refer to library documentation and code examples for more information:
- For Go package docs, symbols, versions, importers, and known vulnerabilities, → See
samber/cc-skills-golang@golang-pkg-go-devskill (godig), preferred over Context7 for Go package facts. - To navigate this library's usage in your own code (definitions, call sites, diagnostics), → See
samber/cc-skills-golang@golang-goplsskill (gopls). - Context7 remains a fallback for docs not indexed on pkg.go.dev.
Install v2 — v1 is superseded and lacks the generics-based container, scopes, and lifecycle hooks documented below, so v1-era guidance misleads on every API in this skill:
go get -u github.com/samber/do/v2
Core Concepts
The Injector (Container)
import "github.com/samber/do/v2"
injector := do.New()
Service Types
- Lazy (default): Created when first requested
- Eager: Created immediately when the container starts
- Transient: New instance created on every request
- Value: Pre-created value, no instantiation
Provider Functions
Services MUST be registered via provider functions:
type Provider[T any] func(i Injector) (T, error)