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Ai Chat Website & APP

Ai Chat Website & APP

Jul 2025 – Aug 2025
Live

About the Project

A full-stack AI-powered chat application built with Google's Gemini API, featuring both web and mobile clients with a robust Node.js backend.

Technical Architecture

Frontend (Web)React.js, Styled Components
Mobile ClientReact Native, Expo
Backend ServerNode.js, Express.js
AI IntegrationGoogle Gemini Pro API
DeploymentVercel (Web), Render (Server), EAS (Mobile)

Core Features Breakdown

AI-Powered Intelligence

  • Gemini Integration: Harnesses Google's Gemini API for state-of-the-art responses
  • Real-time Chat: High-performance messaging engine for fluid conversations
  • Intelligent Context: AI memory and context retention across active sessions
  • Dynamic Prompts: Optimized system instructions for varied user needs

Multi-Platform Ecosystem

  • Web Terminal: High-fidelity React.js application optimized for desktop
  • Native Mobile: Performance-tuned Expo (React Native) app for iOS & Android
  • Responsive Layouts: Adaptive design systems for tablets and mobile browsers
  • Shared Logic: Centralized API consumption across web and mobile clients

Scalable Infrastructure

  • Unitary Backend: Unified Node.js server managing both client ecosystems
  • Modular Architecture: Decoupled /web-client, /app-client, and /server folders
  • Global Connectivity: Distributed infrastructure for low-latency AI responses

Challenges & Solutions

Challenge

Maintaining responsive UI threads while processing heavy streaming responses from the Gemini API

Solution

Implemented strict chunking logic and request debouncing to smoothly animate text streams into the chat window.

Challenge

Protecting the backend infrastructure against unauthenticated API flooding

Solution

Enforced rate-limiting logic on the unified Express server and shielded routes with JWT boundary checks.

Security Posture

Key Isolation

Secured environment shielding for Gemini service credentials

Environment Guarding

Production-ready configurations for development/live nodes

Reliable API Ingestion

Robust error handling for AI provider responses

Live DemoSource Code

Tech Stack

React Native
React.js
Node.js
Express
Expo
AI
Gemini API

Performance

Gemini ProIntelligence
ChunksDelivery
React BaseCross-Platform
ActiveRate Limiter

System Status

Availability99.9%
Deployment
CI/CD

"Built for scale and professional-grade security."

Interested in this project?

Let's discuss how we can build something amazing together based on this architecture.

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