Health Link

Health Link is a cutting-edge platform designed to provide a virtual bridge between patients and doctors, offering remote medical consultations and a comprehensive suite of features tailored to enhance the healthcare experience. With the platform, patients can easily search for and select doctors by name or specialization, request video consultations, and receive personalized medical records post-consultation. This system not only ensures that patients receive timely and efficient healthcare services from the comfort of their homes but also significantly reduces the risk of exposure to contagious diseases in hospital settings.

Platform Overview

Users and Functionality

• Users: Health Link caters to three types of users: patients, doctors, and administrative staff. It allows registered users to log in, while new users can sign up as patients.
• Doctor Selection and Consultation: Patients can search for and select doctors based on specialization or name. They can request video consultations, during which doctors can access the patient's medical records to aid in diagnosis.
• Medical Records: After consultations, patients receive medical records containing advice or treatment plans. Doctors have the capability to view, edit, and delete medical records for their patients.
• User Profiles: All registered users can view and modify their profiles. Administrative staff are responsible for managing doctor profiles within the system.

Technology Stack

• Frontend: The client-side of the website is built using React and TailwindCSS, offering a responsive and user-friendly interface.
• Backend: The server-side utilizes Node.js and Express for RESTful API services.
• Real-time Communication: Socket.io is employed to manage online/offline statuses of doctors, facilitating real-time interactions. It supports features like online presence indicators and private consultation rooms.
• Video Consultations: The integration of WebRTC and PeerJS enables high-quality video consultations, with PeerJS simplifying the peer-to-peer connection setup.
• Database: MongoDB, along with the Mongoose library, is used for data storage, providing a flexible and scalable solution for managing user data and medical records.

Project Setup

To run Health Link locally:

1. Environment Setup: Create a config.env file in the backend directory with necessary environment variables (e.g., database URL, API path, JWT secret).

NODE_ENV=development
PORT=5000
MONGO_URI=<Your MongoDB Url>
API_URL=/api/v1
secret=<Your secret code for JWT>

2. Backend Setup:

Install dependencies and start the backend server with the following commands:

cd backend
npm install
npm start

3. Frontend Setup:

Install dependencies and launch the React frontend with the following commands:

cd frontend
npm install
npm start

API Overview

Health Link provides comprehensive API routes for managing patients, doctors, staff, medical records, and specializations. It supports operations like registration, login, and CRUD operations for medical records and user profiles, ensuring secure access through JWT authentication. Additionally, it offers advanced features like filtering, sorting, field limiting, and pagination to efficiently manage and query data.

API Documentation

Patient Route (Need JWT token)

Endpoint	HTTP Method	CRUD Method	Result	Authorization
/api/v1/patient	GET	READ	Get all patients	Doctor, Staff
/api/v1/patient/:id	GET	READ	Get a single patient	Doctor, Staff, Patient(with match id)
/api/v1/patient	POST	CREATE	Add a patient	Staff
/api/v1/patient/:id	PUT	UPDATE	Update a patient	Patient(with match id)
/api/v1/patient/:id	DELETE	DELETE	Delete a patient	Staff

Doctor Route (Need JWT token)

Endpoint	HTTP Method	CRUD Method	Result	Authorization
/api/v1/doctor	GET	READ	Get all doctor	Paitent, Staff
/api/v1/doctor/:id	GET	READ	Get a single doctor	Patient, Staff, Doctor(with match id)
/api/v1/doctor	POST	CREATE	Add a doctor	Staff
/api/v1/doctor/:id	PUT	UPDATE	Update a doctor	Doctor(with match id)
/api/v1/doctor/:id	DELETE	DELETE	Delete a doctor	Staff

Staff Route (Need JWT token)

Endpoint	HTTP Method	CRUD Method	Result	Authorization
/api/v1/staff	GET	READ	Get all staffs	Staff
/api/v1/staff/:id	GET	READ	Get a single staff	Staff
/api/v1/staff	POST	CREATE	Add a staff	Staff
/api/v1/staff/:id	PUT	UPDATE	Update a staff	staff
/api/v1/staff/:id	DELETE	DELETE	Delete a staff	Staff

Medical Record Route (Need JWT token)

Endpoint	HTTP Method	CRUD Method	Result	Authorization
/api/v1/medicalRecord	GET	READ	Get all medicalRecords	Patient, Doctor
/api/v1/medicalRecord/:id	GET	READ	Get a single medicalRecord	Patient, Doctor
/api/v1/medicalRecord	POST	CREATE	Add a medicalRecord	Doctor
/api/v1/medicalRecord/:id	PUT	UPDATE	Update a medicalRecord	Doctor
/api/v1/medicalRecord/:id	DELETE	DELETE	Delete a medicalRecord	Doctor

Specialization Route (Need JWT token)

Endpoint	HTTP Method	CRUD Method	Result	Authorization
/api/v1/specialization	GET	READ	Get all specializations	Patient, Doctor, Staff
/api/v1/specialization/:id	GET	READ	Get a single specialization	Patient, Staff
/api/v1/specialization	POST	CREATE	Add a specialization	Staff
/api/v1/specialization/:id	PUT	UPDATE	Update a specialization	Staff
/api/v1/specialization/:id	DELETE	DELETE	Delete a specialization	Staff

Authentication Route (Don't need JWT token)

Endpoint	HTTP Method	CRUD Method	Result	Authorization
/api/v1/patient/login	POST	CREATE	Create JWT Token	Registed Patient
/api/v1/patient/register	POST	CREATE	Create an patient account	All users
/api/v1/doctor/login	POST	CREATE	Create JWT Token	Doctor
/api/v1/staff/login	POST	CREATE	Create JWT Token	Staff

Filtering

Example	Result
/api/v1/medicalRecord?doctor=123456&patient=789102	Get medical record that match the doctorID and patientID
/api/v1/doctor/123456,213123	Get the information of the two doctors

Sorting

Example	Result
/api/v1/medicalRecord?sort=date	Medical Record sort by date
/api/v1/patient?sort=-name	Patient sort by name in descending order

Field Limiting

Example	Result
/api/v1/patient?fields=name,email	Show only patient name

Pagination

Example	Result
/api/v1/doctor?page=2&limit=5	Get the information in page 2 and have 5 doctor per page

ER | Use Case | Data Flow Diagrams

Level 1 DFD

Level 2 DFD

Entity-Relationship Diagram

Use Case Diagram