public int Add([FromBody] ApplicantModel value)
        {
            var existingApplicant = applicants.FirstOrDefault(a => a.PhoneNumber == value.PhoneNumber);

            if (existingApplicant == null)
            {
                var addedApplicant = applicants.Add(ApplicantConverter.ApplicantModelToApplicant(value));
                db.SaveChanges();
                return(addedApplicant.Id);
            }
            else
            {
                return(existingApplicant.Id);
            }
        }
 public ApplicantModel Get(int id)
 {
     return(ApplicantConverter.ApplicantToApplicantModel(applicants.Find(id)));
 }
 public IEnumerable <ApplicantModel> Get()
 {
     return(applicants.ToList().Select(a => ApplicantConverter.ApplicantToApplicantModel(a)));
 }