Bogracz

Intro

Bogracz is really small and nifty dependency injection (DI) framework.

Compared to Swinject it has some nice properties like thread safety and type-safe arguments.

Installation

Carthage

• touch Cartfile
• nano Cartfile
• Put github "peterprokop/Bogracz" == 1.0.0 into Cartfile
• Save it: ctrl-x, y, enter
• Run carthage update
• Add Bogracz.framework to your carthage copy-frameworks phase
• Add import Bogracz in files where you plan to use it

Usage

Do import Bogracz Then create a container: let container = DependencyContainer()

Then you can add dependencies as static (dependency will be created once and you are responsible for it):

let myService: MyServiceProviding = MyService()
container.add(MyServiceProviding.self, instance: myService)

... dynamic (dependency will be created every time you get it):

container.add(MyServiceProviding.self, block: { _ in
  return MyService()
})

... or dynamic with config:

let config = MyServiceConfig(answer: 42)

container.add(MyServiceProviding.self, block: { (r, config: MyServiceConfig) in
  return MyService(config: config)
})

Then you can get your dependency in following way:

For dependencies without config -

let myService = container.get(MyServiceProviding.self)

For configurable dependencies -

let myService = container.get(MyServiceProviding.self, config: config)

Dependency Injection

Some useful articles about this topic:

• https://martinfowler.com/articles/injection.html
• https://www.martinfowler.com/articles/dipInTheWild.html
• https://www.martinfowler.com/bliki/InversionOfControl.html