On Field Expertise · Digital Health

CareLoop — From Symptom to Recovery, One Connected Care Loop

Most hospital systems stop at “appointment booked” inside one hospital. CareLoop follows the patient through the whole journey, across many hospitals and pharmacies, on a service-oriented microservice platform.

9Microservices

1API gateway

8Hospitals in the demo network

3Roles: patient, doctor, admin

One Journey, Many Providers

A patient describes symptoms, gets an explainable triage, and CareMatch ranks every hospital in the network by waiting time, cost, trust, distance and experience. Booking shares records with consent, a live token queue shows when to leave, and the e-prescription is priced across partner pharmacies.

Dose reminders track adherence, verified feedback feeds each hospital’s Trust Score, and the full history and reports stay with the patient.

Fig 1: Landing page with the animated care loop, live hospital board and demo logins.

From Symptom to Recovery

Every step is a call to a different microservice, composed by the gateway.

1. Triage

Symptoms in chips or plain text become a specialty, urgency score and red flags.

2. CareMatch

All hospitals ranked: balanced, fastest, cheapest, nearest or best-rated.

3. Book & queue

Conflict-checked booking with consent to share records, then a live token queue.

4. Prescribe & compare

The e-prescription is priced across partner pharmacies, with generic savings.

5. Remind & adhere

Dose reminders and an adherence score keep treatment on track.

6. Feedback

Verified reviews, NLP sentiment and a Bayesian Trust Score close the loop.

Fig 2: Patient dashboard: care-loop tracker, next appointment, Health Score and alerts.

A Dashboard Built Around the Patient

The patient dashboard shows where they are in the care loop, the next appointment with an expected consult time, today’s medicines, lab trends and a Health Score that combines adherence, appointments kept, lab markers and vitals.

Health records: timeline, prescriptions, labs with normal ranges, vitals and alerts
Consent manager: scoped, time-bound access for doctors, logged on a SHA-256 hash-chained ledger
Care circle: book and manage care for family members from one account

Explainable Triage, Network-Wide Matching

Urgency is computed from severity, duration, age risk, symptom count, red flags and dangerous symptom combinations, and every point is shown to the patient. CareMatch then weighs time, cost, trust, distance and experience, with the weights shifting to match the chosen priority.

Red Flags

Chest pain, breathlessness and other warning signs raise urgency and surface emergency guidance.

Five Priorities

Balanced, fastest, cheapest, nearest or best-rated; in person or teleconsult.

Live Hospital Board

Waiting times, free beds and procedure prices for every hospital.

Side-by-Side

Compare hospitals on wait, cost, trust and reviews before booking.

Fig 3: Find care: explainable triage and specialist shortcuts, with the hospital network.

Fig 4: Pharmacy bridge: prescription basket priced across partners with generic savings.

Prescriptions Priced Across Pharmacies

The Pharmacy Bridge turns a prescription into a basket, prices it across partner pharmacies, suggests generic equivalents and shows the saving against MRP. Reminders and refill alerts follow from the same prescription.

Basket optimiser: the cheapest way to buy the whole prescription
Generic savings: Jan Aushadhi and other generics alongside branded medicines
Indicative prices: the demo uses simulated prices; partner buttons open the partners’ public search pages

For Doctors and Administrators

The same platform serves the OPD desk and the network operations team.

Doctor Desk: OPD queue, call-in, consult with consented records and e-prescription.

Admin console: KPIs, auto insights, 14-day forecast and no-show risk.

Verified feedback with live NLP preview and the trust leaderboard.

System health: live architecture, service status and fault isolation.

Gateway and Nine Microservices

Each service is its own process with its own data store. The gateway verifies the JWT once, forwards identity, routes by prefix and records metrics; services talk synchronously over REST and asynchronously through the event bus.

Fig 5: CareLoop architecture: API gateway, nine services, database per service and the event bus.

Nine Services, One Gateway

Service	Port	Responsibility
Auth & Identity	4001	Registration, login (bcrypt), JWT, roles, family care circle, login history
Hospital Network	4002	Hospitals, departments, doctors, live wait time and beds, procedure prices
Appointment & Queue	4003	Slots, conflict-checked booking, reschedule and cancel, live token queue, CareMatch
AI Triage	4004	Symptoms to specialty, urgency score, red flags and dangerous combinations
Health Records & Consent	4005	Timeline, prescriptions, labs, vitals, consent, hash-chained audit ledger
Pharmacy Bridge	4006	Catalogue, partner price comparison, generics, basket optimiser, reminders
Feedback & Sentiment	4007	Verified reviews, sentiment and aspect analysis, Trust Score, hospital replies
Notification & Event Bus	4008	Publish/subscribe domain events, in-app notifications, reminder scheduler
Analytics & Reporting	4009	KPIs, trends, heatmap, forecast, no-show risk, monthly reports, CSV

Built to Degrade Gracefully

Timeouts and fallbacks	Every inter-service call has a timeout and a fallback: if Feedback is down, hospitals still list and CareMatch still ranks; only Trust Scores disappear.
Self-healing launcher	The launcher restarts any crashed service automatically.
Fault isolation demo	Admins can switch any service off from the System page and watch the rest keep working.
Data note	Hospitals, doctors and patients are fictional demo data; triage is decision support, not a diagnosis. Emergency number in India: 108.

Try It Yourself

Run the project live in your browser, or install the open-source build on your own machine.

Live demo

Run it in your browser

The real CareLoop gateway and all nine services run inside this page, with the same seeded network of hospitals and doctors. Sign in with one click as a patient, doctor or admin from the login page; bookings, prescriptions and feedback stay in your browser.

RUN DEMO

Demo logins: patient@careloop.in / patient123 · doctor@careloop.in / doctor123 · admin@careloop.in / admin123

Open source

Install it on your machine

Install Node.js 18+, then two commands start the gateway and nine services on your machine, each with its own data store.

INSTALL THE PROJECT (OPEN SOURCE) Source code on GitHub

Quickstart & Local Setup Guide

1. Install & Start

npm install
npm start
# open http://localhost:3000

Requires Node.js 18 or newer. No database to install: each service keeps its own JSON store.

2. Sign In With a Demo Role

Patient: patient@careloop.in / patient123
Doctor: doctor@careloop.in / doctor123
Admin: admin@careloop.in / admin123

3. Test & Reset

npm test        # API smoke test (while npm start runs)
npm run reset   # wipe and re-seed demo data

4. Try Fault Isolation

Sign in as admin and open System.
Switch a service off, for example Feedback.
Browse hospitals: everything still works except Trust Scores.

Explore the Source Code

The gateway, nine microservices, seed data, smoke tests and the multi-page web client.

View Repository on GitHub Run the Live Demo