Doctor Patient video consultation app and website

It is a dedicated platform for doctor-patient video consultation. Let me discuss the flow of the app. Whenever any patient first visits the app, he /she have to register, we implemented authentication using passport-nodejs. After that, he can fill a form to schedule an appointment with any doctor. Also, we fixed 12 different time slots each in the morning, afternoon, evening. Let's say we have 12 doctors registered, he can schedule appoint with any one of them at any fixed time interval ( we made sure once the time slot is booked is not shown to another user). After that he have to make a payment, we implemented a payment system using Razorpay API. Once he made a payment, he will receive an email verification of the appointment. After that at time of appointment, both doctor and patient will get a notification that you have an appointment with a doctor/patient. They both login into their accounts and start their one on one video chat. We used Heroku cloud Paas to implement video chat.