Xdi

---

Package xdi provides a centralized dependency injection manager which holds definitions for an application's objects/dependencies.

Installation

$ go get github.com/actforgood/xdi

Example

Basic example:

// DiManager holds application's objects, dependencies.
// Do not inject it/use it directly, in your application's objects.
// It should be used only in the bootstrap process of your application and/or main.go,
// as a centralized container of dependencies.
// Note: instead of declaring a variable, you can also use the singleton provided by xdi.ManagerInstance().
var DiManager = xdi.NewManager()

func init() {
	DiManager.AddDefinition(xdi.Definition{
		ID: "app.repository.product",
		Initializer: func() any {
			return NewDummyProductRepository()
		},
		Shared: true,
	})
}

func init() {
	DiManager.AddDefinition(xdi.Definition{
		ID: "app.service.product",
		Initializer: func() any {
			return NewDummyProductService(
				DiManager.Get("app.repository.product").(ProductRepository),
			)
		},
		Shared: true,
	})
}

func main() {
	productService := DiManager.Get("app.service.product").(ProductService)
	isAvailable, _ := productService.CheckAvailability("some-sku", 2)
	fmt.Println("isAvailable:", isAvailable)
}

Misc

Feel free to use this pkg if you like it and fits your needs.
As it is a light/lite pkg, you can also just copy-paste the code, instead of importing it, keeping the license header.

License

This package is released under a MIT license. See LICENSE.