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

using Microsoft.AspNetCore.Mvc;

namespace API_development.Controllers
{
    [Route("/api/[controller]")]
    [ApiController]
    [ApiExplorerSettings(GroupName = "Действия с пользователем")]
    public class UpdateUserController : ControllerBase
    {
        ApplicationContext db = new ApplicationContext();
        [HttpPut] 
        public IActionResult Index(Users user)
        {
            db.tbUsers.Update(user);
            db.SaveChanges();
            return Ok();
        }
    }
}