Berufsschule_HAM/Controllers/LocationsController.cs

// Controllers/LocationsController.cs
using Berufsschule_HAM.Services;
using Microsoft.AspNetCore.Mvc;
using System.Threading.Tasks;

[Route("[controller]")]
public class LocationsController : Controller
{
    private readonly LdapService _ldap;
    public LocationsController(LdapService ldap) => _ldap = ldap;

    [HttpGet("Index")]
    public async Task<IEnumerable<Dictionary<string, string>>> Index()
    {
        IEnumerable<Dictionary<string, string>> list = await _ldap.ListLocationsAsync();
        return list;
    }

}