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Go Dependency Injection

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by Community

Teaches dependency injection in Go using constructor injection, interface-based design, and optional DI containers like Wire and Fx. Covers testing benefits, startup initialization, and when manual DI is sufficient.

godependency-injectionwirefxtesting

Go Dependency Injection

Apply dependency injection patterns in Go for testable, maintainable applications.

Usage

Describe your application architecture and get guidance on the right DI approach.

Examples

  • "How do I structure my Go app for dependency injection?"
  • "Should I use Wire, Fx, or manual DI for my project?"
  • "Refactor this tightly coupled code to use DI"

Guidelines

  • Prefer manual constructor injection for small to medium projects
  • Show interface-based DI for testability
  • Cover Wire for compile-time DI in larger projects
  • Explain when a DI framework adds value vs complexity
  • Include testing patterns that leverage DI

More Go Development Skills

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Go Concurrency Patterns

Master goroutines, channels, and concurrent patterns in Go.

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Go Error Handling

Write idiomatic error handling in Go with wrapping and sentinel errors.

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Go Interface Design

Design small, composable interfaces following Go idioms.

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Go Testing Patterns

Write comprehensive tests in Go with table-driven tests and subtests.