public async Task Add(string login, string password, HandbookSubjects handbookSubjects)
{
HttpClient client = GetClient();
var response = await client.PostAsync(Url,
new StringContent(
JsonConvert.SerializeObject(handbookSubjects),
Encoding.UTF8, "application/json"));
}
public async Task AddSubject(string login, string password, HandbookSubjects handbookSubjects)
{
HandbookSubjectsService handbookSubjectsService = new HandbookSubjectsService();
await handbookSubjectsService.Add(login, password, handbookSubjects);
}