dependency-generic-function.swift

struct StoreManagerClient {
  var load: (String) -> AnyPublisher<(Data, URLResponse), URLError>
  
  func load<Output: Decodable>(objectID: String) -> AnyPublisher<Output, Error> {
    self.load(objectId)
      .decode(type: Output.self, decoder: JSONDecoder())
      .eraseToAnyPublisher()
  }
}

extension StoreManagerClient {
  static let live = Self(
    load: { objectId in 
      URLSession.shared.dataTaskPublisher(...)
    }
  )
}