// POST studentClasses/values
        public void Post([FromBody] StudentClasse data)
        {
            DatabaseOperations db      = new DatabaseOperations();
            MySqlCommand       command = new MySqlCommand("INSERT INTO StudentClasses(StudentId,  ClasseId,  CreationTime) VALUES(@StudentId,  @ClasseId,  @CreationTime)");

            command.Parameters.AddWithValue("@StudentId", data.StudentId);
            command.Parameters.AddWithValue("@ClasseId", data.ClasseId);
            command.Parameters.AddWithValue("@CreationTime", DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss"));

            db.ExecuteQuery(command);
        }
        public static async Task <StudentClasse> AddStudentClasse(StudentClasse studentClasse)
        {
            string data;

            data = "";

            try
            {
                data = await HttpRequestClient.PostRequest("StudentClasses.php?cmd=addStudentClasse", studentClasse);

                studentClasse = JsonConvert.DeserializeObject <StudentClasse>(data);
            }
            catch (Exception ee)
            {
                Console.WriteLine(ee.Message);
            }

            return(studentClasse);
        }