presence/presence_api/Controllers/GroupController.cs

using Microsoft.AspNetCore.Mvc;
using Demo.Domain.UseCase;
using Demo.Domain.Models;

namespace presence_api.Controllers;
[ApiController]
[Route("api/[controller]")]
public class GroupController: ControllerBase{

    private readonly GroupUseCase _groupUseCase;
    public GroupController(GroupUseCase groupUseCase){
        _groupUseCase = groupUseCase;
    }

    [HttpGet]
    public ActionResult<IEnumerable<Group>> getGroups(){
        return Ok(_groupUseCase.GetAllGroups());
    }
}