JSON list not visible in SwiftUI - json

Question

I’m trying to loading the content from a JSON that I created, but unfortunately it doesn’t work.
As you can see from the code below, the only thing I see is “Error” printed in the console.
I also tried with other JSONs from the web, changing the struct accordingly, and it works, but not with the JSON I created.
Here is the code:
import SwiftUI
import URLImage
struct Busso: Codable, Identifiable {
public var id: UUID
public var titolo: String
public var autore: String
public var testo: String
public var data: String
public var extra1: String
public var extra2: String
public var foto: String
public var fotoUrl: String
}
class FetchBusso: ObservableObject {
#Published var Bussos = [Busso]()
init() {
let url = URL(string: "https://geniuspointfrezza.altervista.org/index.php?json=1")!
URLSession.shared.dataTask(with: url) {(data, response, error) in
do {
if let bussoData = data {
let decodedData = try JSONDecoder().decode([Busso].self, from: bussoData)
DispatchQueue.main.async {
self.Bussos = decodedData
}
} else {
print("No data")
}
} catch {
print("Error")
}
}.resume()
}
}
struct CategoryView: View {
#ObservedObject var fetch = FetchBusso()
var body: some View {
VStack {
List(fetch.Bussos) { todo in
VStack(alignment: .leading) {
Text(todo.titolo)
}
}
}
}
}
struct CategoryView_Previews: PreviewProvider {
static var previews: some View {
CategoryView()
}
}
And here is the link to the JSON I want to use:
https://geniuspointfrezza.altervista.org/index.php?json=1
Waiting for your advice, thank you!

Answer 1

Json I'm throwing the site to help you read. You can get help at the point where you get stuck.shttps: //app.quicktype.io

Answer 2

The issue is
public var id: UUID your JSON is public var id: String
catch {
print(error)
}
is more useful than
print("Error")

Answer 3

Your Busso struct is not a proper decoder for the given JSON. As I gave you the link to a prior one of my answers that explains how to get a struct that will parse your data. You really need to review that, but for the sake of putting this to bed, the struct should be:
// MARK: - GeniuspointfrezzaDecoder
struct GeniuspointfrezzaDecoder: Codable {
let id: String?
let titolo: String?
let autore: String?
let testo: String?
let data: String?
let extra1: String?
let extra2: String?
let creazione: String?
let foto: String?
let fotoURL: String?
enum CodingKeys: String, CodingKey {
case id, titolo, autore, testo, data, extra1, extra2, creazione, foto
case fotoURL = "fotoUrl"
}
}
I made the elements all optional since you don't actually know if the server response will contain all of the elements. Another issue you had was declaring the id in your decoder to be a UUID, when the JSON response is clearly a string. Changing the response data to your app's needs has to be done AFTER decoding the response. The decoder is NOT your Busso struct. It is a decoder that gives you the data to put into your Busso struct.