[HttpGet("getAllSpecialization")]       // GET /api/doctor/getAllSpecialization
        public IActionResult GetAllSpecialization()
        {
            List <SpecializationDto> result = new List <SpecializationDto>();

            App.Instance().SpetialitationService.GetAllEntities().ToList().ForEach(specialization => result.Add(SpecializationMapper.SpecializationToSpecializationDto(specialization)));
            return(Ok(result));
        }