Base classes to develop a network API service client. Use as a template.

Net.swift

class HttpRequest {
    func post() {
    }
    func get() {
    }
}

class HttpAPI {
    var request: HttpRequest

    required init(_ request: HttpRequest) {
        self.request = request
    }
}

class Service {
    var api: HttpAPI

    required init(_ api: HttpAPI) {
        self.api = api
    }
}

class ServiceFactory {
    func sampleBuilder() -> Service {
        let request = HttpRequest()
        let api = HttpAPI(request)
        let service = Service(api)
        return service
    }
}