Appointment-Scheduling

Full stack application built using ASP.NET Core, EF Core, SSMS and Angular. This lets the user schedule an appointment and Perform CRUD on it.

• Click ⭐if you like the project. Pull Request are highly appreciated.

Running guide

Download the zip. Open Appointment.sln and run IIS Express.

Project description :

Appointment scheduling lets Admin(For now) to schedule the appointment for a particular date and time. The admin can later update and delete the appointment on demand.

Patterns used:

• Dependency Injection Pattern
• Singleton pattern
• PUBSUB Pattern

Angular features:

• Reactive forms
• Components
• services
• Pipes
• Angular routing
• Dependency Injection
• Observables from rxjs

Documentation:

Client Side using Angular.

Following is the customer model.

    
export interface customerModel {
  appointmentDate: string;
  appointmentID: number;
  dateOfBirth: string;
  firstName: string;
  lastName: string;
}

• Reactive form for the customer details. Createthe following form in the ngoninit.

 this.customerForm = this.fb.group({
      FirstName: ['', [Validators.required, Validators.minLength(2), Validators.maxLength(50)]],
      LastName: ['', [Validators.required, Validators.minLength(2), Validators.maxLength(50)]],
      DateOfBirth: [''],
      AppointmentTime: ['']
    });

• Service is created to make the calls to the API which returns an observable which can be subscribed to when needed.

@Injectable()
export class HomeService {

  constructor(private http: HttpClient) { }


  CreateAppointment(data: string): Observable<any> {
    return this.http.post("https://localhost:44396/api/SampleData/CreateAppointment", data);
  }


  GetAppointment(appointmentId: any): Observable<any> {
    return this.http.get("https://localhost:44396/api/SampleData/" + appointmentId );
  }

  UpdateAppointment(data: string): Observable<any> {
    return this.http.post("https://localhost:44396/api/SampleData/UpdateTodoItem", data);
  }


  DeleteAppointment(data: string): Observable<any> {
    console.log("reached delete appointment");
    return this.http.post("https://localhost:44396/api/SampleData/DeleteAppointment", data);
  }
  }

• Subscribing to the service in the type script file: When the service is created, it can be injected into the component using dependency injection. Which can be subsrcbed by using .subsrcibe method by using PUBSUB pattern .

 onSubmit(): void {
  console.log(this.customerForm.value);
  var data = this.customerForm.value;
  this.homeService.CreateAppointment(data).subscribe(
    result => {
      console.log(result);
    }
  )

• Similarly, code can be found inside the ClientApp folder for deleting and updating the appointments.

Web API using .NET core, EF core, C#, LINQ:

 [HttpPost("[action]")]
     public async Task<ActionResult<int>> CreateAppointment([FromBody] Entities.Appointment item)
     {
         try
         {
             _context.Appointments.Add(item);
             var result = await _context.SaveChangesAsync();

             //Sending email

             var message = new MimeMessage();
             //From Address
             message.From.Add(new MailboxAddress("sai vaibhav medavarapu", "vaibhav.medavarapu@gmail.com"));

             //To address
             message.To.Add(new MailboxAddress("S Medavarapu", "saivaibhav90@gmail.com"));
             //Subject
             message.Subject = "Appointment confirmed";
             //Body
             message.Body = new TextPart("plain")
             {
                 Text = "Appointment confirmed"
             };


             //Configure and send the email

             using (var client = new SmtpClient())
             {
                 // For demo-purposes, accept all SSL certificates (in case the server supports STARTTLS)
                 client.ServerCertificateValidationCallback = (s, c, h, e) => true;

                 client.Connect("smtp.gmail.com", 587, false);

                 // Note: only needed if the SMTP server requires authentication
                 client.Authenticate("Your Username", "your password");

                 client.Send(message);
                 client.Disconnect(true);
             }
             return item.AppointmentID;
         }
         catch (Exception ex)
         {

         }
         return null;
     }

For delete operation

     public async Task<ActionResult<Entities.Appointment>> DeleteAppointment([FromBody]Entities.Appointment item)
     {
         try
         {

             var student = await _context.Appointments.FirstOrDefaultAsync(b => b.AppointmentID == item.AppointmentID);
             _context.Appointments.Remove(student);
             await _context.SaveChangesAsync();
             return NoContent();
         }
         catch (Exception ex)
         {

         }
         return null;
     }
 ```