Swift.DecodingError.Context(codingPath: [CodingKeys(stringValue: "user", intValue: nil)], debugDescription: "No value associated with key CodingKeys(stringValue: "updatedAt", intValue: nil) ("updatedAt").", underlyingError: nil)) ContentView: import SwiftUI struct ContentView: View { @State private var email = "" @State private var password = "" @State private var wrongEmail = 0 @State private var wrongPassword = 0 @State private var showingLoginScreen = false @State private var userData: User? // Declare a @State property for UserData var body: some View { NavigationView { ZStack { Color.blue .ignoresSafeArea() Circle() .scale(1.7) .foregroundColor(.white.opacity(0.15)) Circle() .scale(1.35) .foregroundColor(.white) VStack { Text("Login") .font(.largeTitle) .bold().padding() TextField("Email", text: $email) .padding() .frame(width: 300, height: 50) .background(Color.black.opacity(0.05)) .cornerRadius(10) .border(.red, width: CGFloat(wrongEmail)) SecureField("Password", text: $password) .padding() .frame(width: 300, height: 50) .background(Color.black.opacity(0.05)) .cornerRadius(10) .border(.red, width: CGFloat(wrongPassword)) Button("Login") { authenticateUser(email: email, password: password) } .foregroundColor(.white) .frame(width: 300, height: 50) .background(Color.blue) .cornerRadius(10) NavigationLink( destination: ArtworkView(user: userData), isActive: $showingLoginScreen ) { EmptyView() } // NavigationLink(destination: Text("You are logged in @\(email)"), isActive: $showingLoginScreen) { // EmptyView() // } } }.navigationBarHidden(true) } } func authenticateUser(email: String, password: String) { guard let url = URL(string: "https://api.hangn.art/api/login") else { return } print("making api call") var request = URLRequest(url: url) // method, body, headers request.httpMethod = "POST" request.setValue("application/json", forHTTPHeaderField: "Content-Type") let body: [String: AnyHashable] = [ "email": email, "password": password ] request.httpBody = try? JSONSerialization.data(withJSONObject: body, options: .fragmentsAllowed) //Make the request let task = URLSession.shared.dataTask(with: request) { data, _, error in guard let data = data, error == nil else { return } print(String(data: data, encoding: .utf8)) let decoder = JSONDecoder() //decoder.keyDecodingStrategy = .convertFromSnakeCase // Configure snake case decoding do { // let response = try JSONSerialization.jsonObject(with: data, options: .allowFragments) let response = try decoder.decode(LoginResponse.self, from: data) self.userData = response.user let userData = try decoder.decode(User.self, from: data) print("SUCCESS: \(userData)") wrongEmail = 0 wrongPassword = 0 showingLoginScreen = true } catch { print("Error parsing response data: \(error)") print("Response data: \(String(data: data, encoding: .utf8) ?? "")") } } task.resume() } } //struct Response: Codable { // let email: String // let password: String //} struct ContentView_Previews: PreviewProvider { static var previews: some View { ContentView() } }``` ArtworkView: import SwiftUI struct ArtworkView: View { var user: User? var body: some View { if let user = user { VStack { Text("Name: \(user.firstName) \(user.lastName)") Text("Email: \(user.email)") Text("Description: \(user.description)") // ... display other properties ... } } else { Text("Loading...") } } } User: import Foundation struct LoginResponse: Decodable { let token: String let user: User } struct User: Decodable { let clientId: Int let createdAt: String let description: String let email: String let emailVerifiedAt: String? let firstName: String let id: Int let image: String let lastName: String let location: String? // Make it optional let pmLastFour: String? // Make it optional let pmType: String? // Make it optional let stripeId: String let trialEndsAt: String? // Make it optional let updatedAt: String // Define custom keys for snake case properties private enum CodingKeys: String, CodingKey { case clientId = "client_id" case createdAt = "created_at" case description = "description" case email = "email" case emailVerifiedAt = "email_verified_at" case firstName = "first_name" case id = "id" case image = "image" case lastName = "last_name" case location = "location" case pmLastFour = "pm_last_four" case pmType = "pm_type" case stripeId = "stripe_id" case trialEndsAt = "trial_ends_at" case updatedAt = "updatedAt" // ... other properties ... } } please help

hi, so I have 3 files in my xcode: ContentView import SwiftUI struct ContentView: View { @State private var email = "" @State private var password = "" @State private var wrongEmail = 0 @State private var wrongPassword = 0 @State private var showingLoginScreen = false @State private var userData: User? // Declare a @State property for UserData var body: some View { NavigationView { ZStack { Color.blue .ignoresSafeArea() Circle() .scale(1.7) .foregroundColor(.white.opacity(0.15)) Circle() .scale(1.35) .foregroundColor(.white) VStack { Text("Login") .font(.largeTitle) .bold().padding() TextField("Email", text: $email) .padding() .frame(width: 300, height: 50) .background(Color.black.opacity(0.05)) .cornerRadius(10) .border(.red, width: CGFloat(wrongEmail)) SecureField("Password", text: $password) .padding() .frame(width: 300, height: 50) .background(Color.black.opacity(0.05)) .cornerRadius(10) .border(.red, width: CGFloat(wrongPassword)) Button("Login") { authenticateUser(email: email, password: password) } .foregroundColor(.white) .frame(width: 300, height: 50) .background(Color.blue) .cornerRadius(10) NavigationLink( destination: ArtworkView(user: userData), isActive: $showingLoginScreen ) { EmptyView() } // NavigationLink(destination: Text("You are logged in @\(email)"), isActive: $showingLoginScreen) { // EmptyView() // } } }.navigationBarHidden(true) } } func authenticateUser(email: String, password: String) { guard let url = URL(string: "https://api.hangn.art/api/login") else { return } print("making api call") var request = URLRequest(url: url) // method, body, headers request.httpMethod = "POST" request.setValue("application/json", forHTTPHeaderField: "Content-Type") let body: [String: AnyHashable] = [ "email": email, "password": password ] request.httpBody = try? JSONSerialization.data(withJSONObject: body, options: .fragmentsAllowed) //Make the request let task = URLSession.shared.dataTask(with: request) { data, _, error in guard let data = data, error == nil else { return } print(String(data: data, encoding: .utf8)) let decoder = JSONDecoder() decoder.keyDecodingStrategy = .convertFromSnakeCase // Configure snake case decoding do { // let response = try JSONSerialization.jsonObject(with: data, options: .allowFragments) let response = try decoder.decode(LoginResponse.self, from: data) self.userData = response.user let userData = try decoder.decode(User.self, from: data) print("SUCCESS: \(userData)") wrongEmail = 0 wrongPassword = 0 showingLoginScreen = true } catch { print("Error parsing response data: \(error)") print("Response data: \(String(data: data, encoding: .utf8) ?? "")") } } task.resume() } } //struct Response: Codable { // let email: String // let password: String //} struct ContentView_Previews: PreviewProvider { static var previews: some View { ContentView() } } ArtworkView import SwiftUI struct ArtworkView: View { var user: User? var body: some View { if let user = user { VStack { Text("Name: \(user.firstName) \(user.lastName)") Text("Email: \(user.email)") Text("Description: \(user.description)") // ... display other properties ... } } else { Text("Loading...") } } } User import Foundation struct LoginResponse: Decodable { let token: String let user: User } struct User: Decodable { let clientId: Int let createdAt: String let description: String let email: String let emailVerifiedAt: String? let firstName: String let id: Int let image: String let lastName: String let location: String? // Make it optional let pmLastFour: String? // Make it optional let pmType: String? // Make it optional let stripeId: String let trialEndsAt: String? // Make it optional let updatedAt: String // Define custom keys for snake case properties private enum CodingKeys: String, CodingKey { case clientId = "client_id" case createdAt = "created_at" case emailVerifiedAt = "email_verified_at" case firstName = "first_name" case lastName = "last_name" case pmLastFour = "pm_last_four" case pmType = "pm_type" case stripeId = "stripe_id" case trialEndsAt = "trial_ends_at" // ... other properties ... } } why am I getting: Type 'User' does not conform to protocol 'Decodable'

So I had firebase working with my app and now it is not, I have tried installing the package from: https://github.com/firebase/firebase-ios-sdk.git but I get Package Resolution Failed firebase-ios-sdk could not be resolved

I have tried the following: let data = FirebaseManager.shared.firestore.collection("favourites").where("uid", "==", user?.uid).get()     print(data) and I get: Value of type 'CollectionReference' has no member 'where' Please help?

You would've thought this is basic stuff, I have a view with CancelButtonView with the following code: import SwiftUI struct CancelButtonView: View {   var body: some View {     NavigationView {       NavigationLink(destination: AboutView()) {         Button {                     } label: {           HStack {             Spacer()             Text("Continue anyway")               .foregroundColor(.white)               .padding(.vertical, 10)               .font(.system(size: 14, weight: .semibold))             Spacer()           }.background(Color.blue)         }       }     }   } } struct CancelButtonView_Previews: PreviewProvider {   static var previews: some View {     CancelButtonView()   } } in my other view I am calling this: CancelButtonView() Why can't I see my button?!

So I have the function: storeFaveArtwork and I am trying to action it in my button further down using: self.storeFaveArtwork(artwork.id) I am getting the error at the top in my var body: some View { The compiler is unable to type-check this expression in reasonable time; try breaking up the expression into distinct sub-expressions Here is my code: // // ContentView.swift // Shared // // Created by J*** B******* on 04/05/2022. // import SwiftUI import Firebase struct ContentView: View {   private func storeFaveArtwork(artwork: Artwork) {     guard let uid = FirebaseManager.shared.auth.currentUser?.uid else {       return     }     let artData = ["id": artwork.id, "uid": uid] as [String : Any]     FirebaseManager.shared.firestore.collection("favourites")       .document(uid).setData(artData) { err in         if let err = err {           print(err)           return         }         print("Success")       }   }   @StateObject var viewAllArtwork = ViewAllArtwork()   var body: some View {     NavigationView {       List {         ForEach(viewAllArtwork.artworksData, id: \.self) { artwork in           NavigationLink(destination: ContentDetail(item: artwork)) {                           HStack(alignment: .top, spacing: 3.0) {               URLImage(urlString: "https://melvynbiddulph.co.uk/images/gallery/"+artwork.file)                               VStack(alignment: .leading, spacing: 3.0) {                 if(artwork.id != nil){                   Text("\(artwork.id)")                     .font(.caption2)                     .fontWeight(.bold)                     .padding(2.0)                     .foregroundColor(Color.gray)                     .frame(width: 32.0, height: 32.0)                     .shadow(radius: 20)                     .overlay(RoundedRectangle(cornerRadius: 20)                               .stroke(Color.gray, lineWidth: 2))                     .background(Color.white, in: RoundedRectangle(cornerRadius: 20)                     ).position(x: -124, y: 20)                 }                 Text(artwork.title)                   .font(.body)                   .bold()                   .frame(height: 36, alignment: .center)                         .frame(maxWidth: .infinity)                 HStack(spacing: 2) {                                       if (artwork.size != nil) {                     Text(artwork.size)                       .padding(4)                       .font(.caption)                       .background(Color.gray.opacity(0.2))                       .cornerRadius(5)                       .foregroundColor(Color.gray)                       .frame(height: 25, alignment: .center)                             .frame(maxWidth: .infinity)                   }                   if (artwork.price != 0) {                     Text("£\(artwork.price)")                       .fontWeight(.bold)                       .padding(4)                       .font(.caption)                       .background(Color.green)                       .cornerRadius(5)                       .foregroundColor(Color.white)                       .frame(width: .infinity)                   }                   Button {                     self.storeFaveArtwork(artwork.id)                   } label: {                     HStack {                       Spacer()                       Text("Favourite")                         .foregroundColor(.white)                         .padding(.vertical, 10)                         .font(.system(size: 14, weight: .semibold))                       Spacer()                     }.background(Color.blue)                   }                   Spacer()                     .frame(width: 0.0, height: 60.0)                 }                                 }               .frame(width: 150.0)                             }           }         }       }       .navigationTitle("Artwork")       .onAppear {         viewAllArtwork.fetch()       }     }   } } struct ContentView_Previews: PreviewProvider {   static var previews: some View {     ContentView()   } }

I'm getting: Cannot find 'viewAllArtwork' in scope my detail view: import SwiftUI struct ArtworkDetailView: View {   @StateObject var viewAllArtwork = ViewAllArtwork()   var artwork: Artwork       var body: some View {     Text(artwork.title)   } } struct ArtworkDetailView_Previews: PreviewProvider {   static var previews: some View {     ArtworkDetailView(artwork: viewAllArtwork.artworksData[0])   } } and my Artwork Views: import SwiftUI struct ArtworkView: View {   @StateObject var singleArtwork = SingleArtwork()   var body: some View {     NavigationView {       List {         ForEach(singleArtwork.artworksData, id: \.self) { artwork in           HStack(spacing: 8) {             URLImage(urlString: "https://melvynbiddulph.co.uk/images/gallery/"+artwork.file)             Text(artwork.title)               .bold()             if (artwork.size != nil) {               Text(artwork.size)             }           }         }       }       .navigationTitle("Single Artwork")       .onAppear {         singleArtwork.fetch()       }     }   } } struct ArtworkView_Previews: PreviewProvider {   static var previews: some View {     ArtworkView()   } } and to get the data for this: import Foundation import SwiftUI class ViewAllArtwork: ObservableObject {   @Published var artworksData: [Artwork] = []   func fetch() {     guard let url = URL(string: "https://melvynbiddulph.co.uk/api/artwork") else {       return     }           let task = URLSession.shared.dataTask(with: url) { data, response, error in       guard let data = data, error == nil else {         return       }               //convert to JSON       do {         let artworksData = try JSONDecoder().decode([Artwork].self, from: data)         DispatchQueue.main.async {           self.artworksData = artworksData         }       } catch {         print(error)       }     }     task.resume()   } } Please help

Hi, I am able to get data in an array and loop through it but how can I get single object data and display it? artwork view import SwiftUI struct ArtworkView: View {   @StateObject var singleArtwork = SingleArtwork()   var body: some View {     NavigationView {       List {         ForEach(singleArtwork.artworksData, id: \.self) { artwork in           HStack(spacing: 8) {             URLImage(urlString: "https://melvynbiddulph.co.uk/images/gallery/"+artwork.file)             Text(artwork.title)               .bold()             if (artwork.size != nil) {               Text(artwork.size)             }           }         }       }       .navigationTitle("Single Artwork")       .onAppear {         singleArtwork.fetch()       }     }   } } struct ArtworkView_Previews: PreviewProvider {   static var previews: some View {     ArtworkView()   } } Single Artwork Object import SwiftUI class SingleArtwork: ObservableObject {   @Published var artworksData: [Artwork] = []   func fetch() {     guard let url = URL(string: "https://melvynbiddulph.co.uk/api/artwork/11") else {       return     }           let task = URLSession.shared.dataTask(with: url) { data, response, error in       guard let data = data, error == nil else {         return       }               //convert to JSON       do {         let artworksData = try JSONDecoder().decode([Artwork].self, from: data)         DispatchQueue.main.async {           self.artworksData = artworksData         }       } catch {         print(error)       }     }     task.resume()   } } URLImage import SwiftUI struct URLImage: View {   let urlString: String       @State var data: Data?       var body: some View {     if let data = data, let uiimage = UIImage(data: data) {       Image(uiImage: uiimage)         .resizable()         .aspectRatio(contentMode: .fit)         .frame(width: 130, height: 130)         .background(Color.gray)     } else {       Image(systemName: "loading")         .resizable()         .aspectRatio(contentMode: .fit)         .frame(width: 130, height: 130)         .background(Color.gray)         .onAppear {           fetchData()         }     }   }       private func fetchData() {     guard let url = URL(string: urlString) else {       return     }         let task = URLSession.shared.dataTask(with: url) { data, response, error in     self.data = data     }     task.resume()   } } Obviously it works for an array of objects: https://www. melvynbiddulph .co.uk/api/artwork but not working for single objects: https://www. melvynbiddulph .co.uk/api/artwork/11