mdk-01.03-api-test/API development/Controllers/HobbieUserController.cs

using Microsoft.AspNetCore.Mvc;
using Microsoft.OpenApi.Any;

namespace API_development.Controllers
{
    [Route("/api/[controller]")]
    [ApiController]
    [ApiExplorerSettings(GroupName = "Хобби пользователя")]
    public class HobbiesUserController : ControllerBase
    {
        ApplicationContext db = new ApplicationContext();
        [HttpGet]
        public IActionResult Index(string surname, string name)
        {
            List<Hobbies> hobbies = new List<Hobbies>();
            List<Users> users = db.tbUsers.Where(tb => tb.lastName == surname && tb.firstName == name).ToList();            
            List<UsersHobbies> usersHobbies = db.tbUserHobbies.ToList();
            foreach (UsersHobbies elem in usersHobbies)
            {
                foreach (Users user in users)
                {
                    if (elem.idUser == user.idUsers)
                    {
                        Hobbies hobbi = db.tbHobbies.Where(tb => tb.idHobbi == elem.idHobbi).FirstOrDefault();
                        if (hobbi != null)
                        {
                            hobbies.Add(hobbi);
                        }
                    }

                }
            }

            return Ok(hobbies);
        }
    }
}