I’m still working on various solutions to service dependencies.

But my current thinking is that I might forgo environmentObject (and its issues) altogether and consider using a variant of my dependency injection system (Resolver) in SwiftUI. Something like…

struct ContentView: View {
    @InjectedObject var user: UserService
    var body: some View {
        VStack {
            Text(user.name)
            Text(user.data ?? "n/a")
            Button(action: {
                self.user.update()
            }) {
                Text("Update")
            }
        }
    }
}

The InjectedObject wrapper is a version of my Injected wrapper that performs automatic dependency injection using property wrapper annotation while at the same time exposing an ObservableObject to SwiftUI.

UserService might look like…

class UserService: ObservableObject {
    @Published var name = "Michael"    
    @Published var data: String?   
    @Injected var anotherDependency: SecondDependentService
    func update() {
        anotherDependency.fetch {
            self.data = $0
        }
     }
}

Where SecondDependentService is a behind-the-scenes service and not necessarily a SwiftUI ObservableObject.