I will describe in more detail my interest. I have a view that show list of users (class User). In the same view I described a method for obtaining json and serializing data. Question: It seems to me more correct to encapsulate the method of obtaining data in my User class, but if I do this, then how do I translate errors from this model methods into a view?

If you make your Class conform to ObservableObject then using the @Published proptery wrapper for your errors work? That's the first solution that comes to my mind when reading your question. Here is a referece: https://www.hackingwithswift.com/quick-start/swiftui/what-is-the-observedobject-property-wrapper

-Dan

Are you doing something similar to what Paul describes in https://www.hackingwithswift.com/example-code/language/how-to-convert-json-into-swift-objects-using-codable ?

You might like to lokk at John Sundell's take on this same subject at https://www.swiftbysundell.com/articles/customizing-codable-types-in-swift/

Neither of these sends failures to a View, just report it to the debugging code or just fail. To do that you might like to look at https://www.hackingwithswift.com/articles/161/how-to-use-result-in-swift

which seems to me to be what you are looking for, although I might still not understand your problem.

Good luck

Thank you for advices. I think @Published proptery wrapper for errors this is solution.