Is this correct way to use CoreDat… | Apple Developer Forums

Is this correct way to use CoreData with the swiftUI 2.0 @main app protocol

Is this the correct way to to use coredata with the new App protocol? My app works like this but im a beginner so dont know if this is making some bad performance or if the app will crash in future when the coredata model get more entrys?

See down:
ContentView is the navigation menu, and the views i navigate to from contentview can use the coredata through the @Environment of managedObjectContext now so it seems like all is working..

Code Block swiftimport SwiftUI
import CoreData
@main
struct TestApp: App {
    var body: some Scene {
        WindowGroup {
            ContentView()
                .environment(\.managedObjectContext, persistentContainer.viewContext)
                        
        }
    }
    var persistentContainer: NSPersistentContainer = {
                let container = NSPersistentContainer(name: "TestApp")
                container.loadPersistentStores(completionHandler: { (storeDescription, error) in
                    if let error = error as NSError? {
                        fatalError("Unresolved error \(error), \(error.userInfo)")
                    }
                })
                return container
            }()
            func saveContext() {
                let context = persistentContainer.viewContext
                if context.hasChanges {
                    do {
                        try context.save()
                    } catch {
                        let nserror = error as NSError
                        fatalError("Unresolved error \(nserror), \(nserror.userInfo)")
                    }
                }
            }
}