public string Post([FromBody] Course value)
 {
     if (!dbContext.Course.Any(course => course.Title.Equals(value.Title)))
     {
         Course course = new Course();
         course.CourseId    = value.CourseId;
         course.CreatorId   = value.CreatorId;
         course.Title       = value.Title;
         course.Description = value.Description;
         course.Date        = value.Date;
         try
         {
             dbContext.Add(course);
             dbContext.SaveChanges();
             return(JsonConvert.SerializeObject("Insert into Course OK - Remote DB"));
         }
         catch (Exception ex)
         {
             return(JsonConvert.SerializeObject(ex.InnerException.Message));
         }
     }
     else
     {
         return(JsonConvert.SerializeObject("Course with the same title already exists - Remote DB"));
     }
 }
 public string Post([FromBody] Student value)
 {
     if (!dbContext.Student.Any(user => user.Login.Equals(value.Login)))
     {
         Student student = new Student();
         student.Id       = value.Id;
         student.Login    = value.Login;
         student.Password = value.Password;
         student.Name     = value.Name;
         student.Mail     = value.Mail;
         try
         {
             dbContext.Add(student);
             dbContext.SaveChanges();
             return(JsonConvert.SerializeObject("Register successfully - Remote DB"));
         }
         catch (Exception e)
         {
             return(JsonConvert.SerializeObject(e.InnerException.Message));
         }
     }
     else
     {
         return(JsonConvert.SerializeObject("User already exists - Remote DB"));
     }
 }
        public string Post([FromBody] Member value)
        {
            Member member = new Member();

            member.CourseId = value.CourseId;
            member.MemberId = value.MemberId;
            try
            {
                dbContext.Add(member);
                dbContext.SaveChanges();
                return(JsonConvert.SerializeObject("Insert into Member OK - Remote DB"));
            }
            catch (Exception ex)
            {
                return(JsonConvert.SerializeObject(ex.InnerException.Message));
            }
        }