1. Setup & Installation

• Backend: Node.js LTS version, Express
• Frontend: ReactJS, minimal dependencies
• Connection: Uses Axios in Frontend
• Clone: //Available only for Developer working in Project-37
• Run Locally: npm install (Backend) && npm start (Root)

2. Project Structure

• /Web-frontend – All client-side files for Web (JSX)
• /Backend – API routes, database models, controllers, middleware
• /Android-frontend – Uses WebView in Android

3. Authentication Flow

Trevo uses session-based authentication.

• Signup → Token Generation
• Login → Token Validation
• Tokens stored in localStorage

4. API Integration

• RESTful endpoints: /api/[models to crud]
• Middleware includes validation protecting all the routes

5. AI Messaging Interface

Core feature using OpenAI-compatible API:

• Message parsing and context mapping
• App-to-app communication logic
• Sample prompt routing in routes/messsage.js

6. Trevo App Development