Mapping a single response object with SwiftUI and MVVM pattern - mvvm

Question

I have a simple user profile model which is returned as a single node from a JSON API.
(Model) UserProfile.swift
struct UserProfile: Codable, Identifiable {
let id: Int
var name: String
var profile: String
var image: String?
var status: String
var timezone: String
}
(Service) UserProfileService.swift
class UserProfileService {
func getProfile(completion: #escaping(UserProfile?) -> ()) {
guard let url = URL(string: "https://myapi.com/profile") else {
completion(nil)
return
}
var request = URLRequest(url: url)
request.setValue("application/json", forHTTPHeaderField: "Content-Type")
request.setValue("application/json", forHTTPHeaderField: "Accept")
request.httpMethod = "GET"
URLSession.shared.dataTask(with: request) { data, response, error in
guard let data = data, error == nil else {
DispatchQueue.main.async {
completion(nil)
}
return
}
do {
let profile = try JSONDecoder().decode(UserProfile.self, from: data)
DispatchQueue.main.async {
completion(profile)
}
} catch {
print("ERROR: ", error)
}
}.resume()
}
}
(View Model) UserProfileViewModel.swift
class UserProfileRequestViewModel: ObservableObject {
#Published var profile = UserProfile.self
init() {
fetchProfile()
}
func fetchProfile() {
UserProfileService().getProfile { profile in
if let profile = profile {
self.profile = UserProfileViewModel.init(profile: profile)
}
}
}
}
class UserProfileViewModel {
var profile: UserProfile
init(profile: UserProfile) {
self.profile = profile
}
var id: Int {
return self.profile.id
}
}
Could someone please tell what I need to put instead self.profile = UserProfileViewModel.init(profile: profile) above as that results in the error "Cannot assign value of type 'UserProfileViewModel' to type 'UserProfile.Type'"?
If I have a loop of data, then there is no issue looping over this like below but how do I handle a single node?
if let videos = videos {
self.videos = videos.map(VideoViewModel.init)
}

Answer 1

Seems your UserProfileService().getProfile already return UserProfile type so you maybe need to
UserProfileService().getProfile { profile in
if let profile = profile {
self.profile = profile
}
}
and
#Published var profile : UserProfile?

Answer 2

Working version with the correct View Model, so adding this for others that might have the same issues!
(View Model) UserProfileViewModel.swift
class UserProfileViewModel: ObservableObject {
#Published var profile: UserProfile?
init() {
fetchProfile()
}
func fetchProfile() {
UserProfileService().getProfile { profile in
self.profile = profile
}
}
var name: String {
return self.profile?.name ?? "Name"
}
}