Creating mapmarker in Swiftui interface?

Question

I've been trying to create a mapmarker on my screen via mapkit for 1 week. These mapmarkers come from the api I have as latitude and longitude. However, I learned swift 1 month ago and I'm having a hard time. Is there someone to help me? Code and screenshot attached.

Obviously what I want is to know where to write the codes and to know which codes to use. (My interface is swift, there is usually a storyboard interface on the internet)

import SwiftUI
import MapKit


struct depremHaritasi: View {

    @State var quakes: [EarthQuake] = []

    @State var coordinateRegion = MKCoordinateRegion(
          center: CLLocationCoordinate2D(latitude: 38.9520281, longitude: 35.6980142),
          span: MKCoordinateSpan(latitudeDelta: 30, longitudeDelta: 10))

        var body: some View {
            Map(coordinateRegion: $coordinateRegion)
            .edgesIgnoringSafeArea(.all)
            .onAppear {
            Api().getEarthQuake { (quakes) in
                self.quakes = quakes
            }
        }
}
}


struct depremHaritasi_Previews: PreviewProvider {
   static var previews: some View {
       depremHaritasi()
   }
}

Earthquake Map Screenshot