godi Documentation

godi - Simple, powerful dependency injection for Go. No magic, just functions.

Quick Example

// Define your service
type Greeter struct {
    name string
}

func NewGreeter() *Greeter {
    return &Greeter{name: "World"}
}

// Set up DI
collection := godi.NewCollection()
collection.AddSingleton(NewGreeter)

provider, _ := collection.Build()
defer provider.Close()

// Use it
greeter, _ := godi.Resolve[*Greeter](provider)
fmt.Println(greeter.Greet()) // Hello, World!

That’s it! Start simple, add features as you need them.

Why godi?

• ✅ Simple - Just functions, no annotations or code generation

• ✅ Type-safe - Full compile-time checking with generics

• ✅ Testable - Swap implementations instantly with modules

• ✅ Scalable - From simple CLIs to complex web applications

• ✅ Fast - Minimal overhead, production-ready