Read json-data from url, but it would not viewed - swift

Question

I have a api that give me the follong response:
[{
"id": 1,
"title": "Learn Grinding"
}, {
"id": 2,
"title": "See the messure".
}]
and in my view I like to view this in a list. Later I like to save it into Core Data. But for testing, i just like to see the values in a list. But there is nothing to see :(
The list is empty. With the same content I try to use the Apple-Example with the itunes-List and this work in this ViewController.
With the first Button I test, if I can add a value to the database, and this works fine. Only the List of the json-data would not be read and viewed.
import SwiftUI
struct Response: Codable {
var results: [Result]
}
struct Result: Codable {
var id: Int
var title: String
}
struct TutorialsView: View {
#StateObject var viewRouter: ViewRouter
#State private var results = [Result]()
#Environment(\.managedObjectContext) var managedObjectContext
#FetchRequest(
entity: Tutorials.entity(),
sortDescriptors: [NSSortDescriptor(keyPath: \Tutorials.title, ascending: true)]
) var tutorials: FetchedResults<Tutorials>
var body: some View {
VStack {
Text("Tutorials")
.bold()
Button(action: {
let tutorial = Tutorials(context: managedObjectContext)
tutorial.title = "Describe how to messure"
PersistenceController.shared.save()
}, label: {
Text("Add Tutorial")
})
List {
ForEach(tutorials, id:\.self) { tutorial in
Text("\(tutorial.title ?? "Unknown")")
}
}
List(results, id: \.id) { item in
VStack(alignment: .leading) {
Text(item.title)
.font(.headline)
}
}
.task {
await loadData()
}
}
}
func loadData() async {
guard let url = URL(string: "https://example.org") else {
print("Invalid URL")
return
}
do {
let (data, _) = try await URLSession.shared.data(from: url)
if let decodedResponse = try? JSONDecoder().decode(Response.self, from: data) {
results = decodedResponse.results
}
} catch {
print("Invalid data")
}
}
}
struct TutorialsView_Previews: PreviewProvider {
static var previews: some View {
TutorialsView(viewRouter: ViewRouter())
}
}
When I change the url from the itunes to my own, I got this error in the console:
2022-02-17 14:36:19.868821+0100 GrindingCalculator[2460:27599] [boringssl]
boringssl_metrics_log_metric_block_invoke(151) Failed to log metrics
I also try to use a iPhone and install it on this device and there also would be nothing viewed.
Can you see, where my mistake is?