Node.js

Case Study: Real-Time API Platform with Node.js

See how CycaSoft built a real-time, high-performance API backend using Node.js to power a fintech mobile app for a growing digital payments provider.

Node.js project image
Node.js project image
Client

A fast-growing fintech startup offering real-time payments, expense tracking, and financial analytics via a mobile-first platform.

Challenge

The existing backend couldn't handle spikes in traffic or ensure consistent low-latency response times during peak transactions.

Solution Delivered
  • Developed scalable REST & WebSocket APIs using Node.js (Express & Socket.io)
  • Used MongoDB with Mongoose for flexible, high-speed data storage
  • Implemented Redis caching and rate-limiting to optimize API performance
  • Built authentication with JWT and secure middleware for financial-grade protection
  • Integrated third-party services like Razorpay and Twilio
  • Deployed microservices using Docker on AWS ECS and configured monitoring with Prometheus + Grafana
Business Impact
  • Enabled the platform to scale from 10K to 500K+ users with 99.99% uptime
  • Reduced API response time from 900ms to under 150ms
  • Increased customer retention by 28% due to smoother UX and instant feedback
  • Reduced backend infrastructure costs by 22% through microservices optimization

Node.js Solutions Offered by CycaSoft

Predictive Maintenance

Monitor and predict equipment failures using Express.js/NestJS APIs with TensorFlow.js and visualize data through Chart.js or D3.js-powered dashboards.

Intelligent Document Processing

Implement OCR-based document workflows using Tesseract.js, Natural (NLP), and server-rendered UIs with EJS or Handlebars templates in Express.js.

Computer Vision

Use TensorFlow.js and OpenCV.js for object detection and image processing, integrated into Node.js services with real-time visualization on the frontend.

NLP & Chatbots

Build conversational agents using Botpress, Natural, or Rasa via HTTP APIs, integrated with Socket.IO or RESTful Express.js services.

Fraud Detection

Implement fraud detection logic using Node.js ML libraries like brain.js or TensorFlow.js, with rule-based triggers in NestJS and alerting via web sockets or email.

AI Integration & Deployment

Deploy AI models through Express.js/NestJS APIs, containerized using Docker and orchestrated via Kubernetes, with dashboards powered by D3.js or React.

Node.js Solutions Across Industries

Manufacturing

Factory IoT Data Aggregator using Node.js, MQTT, MongoDB & Socket.io.

  • Node.js MQTT broker for factory machine data ingestion
  • Real-time alerts and dashboard updates via Socket.io
  • Express backend with MongoDB for machine logs
  • Impact: 30% drop in unplanned breakdowns
  • Impact: Visibility across 15+ machines in real-time
Healthcare

Appointment Booking & EHR API using Node.js, JWT, PostgreSQL.

  • REST API for appointments, EHR, doctors & patients
  • JWT-secured access for role-based authentication
  • Integrated calendar APIs for smart reminders
  • Impact: 50% fewer missed appointments
  • Impact: 2x faster access to patient history
Logistics

Real-Time Fleet Management using Node.js, Redis, WebSockets, PostgreSQL.

  • Vehicle registration, tracking & route status APIs
  • Redis pub/sub + WebSocket for live location updates
  • Mobile app sync for driver updates
  • Impact: 40% better on-time delivery
  • Impact: ₹1L/month savings via idle time optimization
Banking

Secure Customer Onboarding using Node.js, JWT, Multer, PostgreSQL.

  • KYC document upload & OCR validation
  • Secure login with JWT and 2FA support
  • Email alerts via Nodemailer integration
  • Impact: Onboarding time cut from 3 days to 1 hour
  • Impact: 99.9% document accuracy
Insurance

Premium Payment System using Node.js, Stripe API, MongoDB.

  • Secure payment APIs integrated with Stripe/Paytm
  • Receipts & payment history stored in MongoDB
  • Webhooks for fraud detection and status alerts
  • Impact: 100% shift to online payments
  • Impact: 45% reduction in policy lapse rates
Real Estate

Lead Management CRM using Node.js, MongoDB, JWT, SendGrid.

  • API for broker assignment and lead tracking
  • Admin dashboard for scoring & reminders
  • Email automation for follow-up campaigns
  • Impact: 38% increase in closure rate
  • Impact: Lead leakage reduced to under 2%
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