mirror of
http://forgejo-oa09toasww4dgii9cj3gpzda.187.127.164.61.sslip.io/iamcoolvivek007/bharath.git
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Vivek
394117dd74
- Govt-app styled freight marketplace - Role-based auth (driver/shipper/broker/admin) - Load board with bidding system - Trip tracking with status flow - In-app messaging - Admin panel - Mobile bottom nav + PWA - Docker + Coolify ready
279 lines
13 KiB
Markdown
279 lines
13 KiB
Markdown
# BharathTrucks — Technical Architecture Document
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**Version:** 1.0
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**Date:** 2026-05-31
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---
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## 1. Architecture Overview
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```
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┌─────────────────────────────────────────────────────────┐
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│ bharathtrucks.com │
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│ (Cloudflare DNS/CDN) │
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└─────────────────────┬───────────────────────────────────┘
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│
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┌─────────────────────▼───────────────────────────────────┐
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│ Hostinger VPS (Coolify) │
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│ ┌────────────────────────────────────────────────────┐ │
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│ │ Docker Container │ │
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│ │ ┌──────────────────────────────────────────────┐ │ │
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│ │ │ Node.js + Express Server │ │ │
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│ │ │ │ │ │
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│ │ │ ┌─────────┐ ┌──────────┐ ┌───────────┐ │ │ │
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│ │ │ │ Routes │ │ Views │ │Middleware │ │ │ │
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│ │ │ │(Express)│ │ (EJS) │ │(Auth/Rate)│ │ │ │
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│ │ │ └────┬────┘ └──────────┘ └───────────┘ │ │ │
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│ │ │ │ │ │ │
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│ │ │ ┌────▼────────────────────────────────────┐ │ │ │
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│ │ │ │ Controllers │ │ │ │
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│ │ │ └────┬────────────────────────────────────┘ │ │ │
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│ │ │ │ │ │ │
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│ │ │ ┌────▼────────────────────────────────────┐ │ │ │
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│ │ │ │ Service Layer │ │ │ │
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│ │ │ └────┬────────────────────────────────────┘ │ │ │
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│ │ └───────┼──────────────────────────────────────┘ │ │
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│ └──────────┼─────────────────────────────────────────┘ │
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└─────────────┼────────────────────────────────────────────┘
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│
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┌─────────────▼────────────────────────────────────────────┐
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│ Supabase (Cloud) │
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│ ┌──────────┐ ┌──────────┐ ┌──────────┐ ┌─────────┐ │
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│ │PostgreSQL│ │ Auth │ │ Storage │ │Realtime │ │
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│ │(Database)│ │ (OTP) │ │ (Files) │ │ (WS) │ │
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│ └──────────┘ └──────────┘ └──────────┘ └─────────┘ │
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└───────────────────────────────────────────────────────────┘
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```
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---
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## 2. Technology Stack
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| Layer | Technology | Justification |
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|-------|-----------|---------------|
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| **Runtime** | Node.js 20 LTS | Fast, async I/O, large ecosystem |
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| **Framework** | Express.js 4.x | Minimal, flexible, well-documented |
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| **Views** | EJS | Server-rendered (SEO, fast on 3G, no JS required) |
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| **Database** | Supabase PostgreSQL | Managed, free tier, built-in auth |
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| **Auth** | Supabase Auth (Phone OTP) | India-native phone-first auth |
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| **File Storage** | Supabase Storage | Documents, profile photos |
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| **Realtime** | Supabase Realtime | Live bid updates, notifications |
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| **CSS** | Custom CSS | Full control for govt-app aesthetic |
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| **PWA** | Service Worker + Manifest | Installable, offline caching |
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| **Container** | Docker | Consistent deployment |
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| **Orchestration** | Coolify | Self-hosted PaaS on Hostinger VPS |
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| **CDN/DNS** | Cloudflare | Free SSL, caching, DDoS protection |
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| **Domain** | bharathtrucks.com | Brand identity |
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---
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## 3. Application Structure
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```
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bharathtrucks/
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├── webapp/
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│ ├── src/
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│ │ ├── app.js # Express app setup
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│ │ ├── server.js # Server entry point
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│ │ ├── routes/
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│ │ │ ├── index.js # Route aggregator
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│ │ │ ├── auth.routes.js # Login, register, OTP
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│ │ │ ├── load.routes.js # Load CRUD, search
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│ │ │ ├── bid.routes.js # Bidding operations
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│ │ │ ├── driver.routes.js # Driver dashboard
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│ │ │ ├── shipper.routes.js # Shipper dashboard
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│ │ │ ├── broker.routes.js # Broker dashboard
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│ │ │ ├── admin.routes.js # Admin panel
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│ │ │ └── web.routes.js # Marketing pages
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│ │ ├── controllers/
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│ │ │ ├── auth.controller.js
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│ │ │ ├── load.controller.js
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│ │ │ ├── bid.controller.js
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│ │ │ ├── driver.controller.js
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│ │ │ ├── shipper.controller.js
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│ │ │ ├── broker.controller.js
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│ │ │ └── admin.controller.js
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│ │ ├── services/
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│ │ │ ├── supabase.js # Supabase client init
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│ │ │ ├── auth.service.js # Auth logic
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│ │ │ ├── load.service.js # Load business logic
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│ │ │ ├── bid.service.js # Bid business logic
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│ │ │ └── notification.service.js
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│ │ ├── middleware/
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│ │ │ ├── auth.middleware.js # Session validation
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│ │ │ ├── role.middleware.js # Role-based access
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│ │ │ ├── rate.middleware.js # Rate limiting (bids/day)
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│ │ │ └── error.middleware.js
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│ │ ├── views/
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│ │ │ ├── layouts/
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│ │ │ │ └── main.ejs # Base layout
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│ │ │ ├── pages/
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│ │ │ │ ├── landing.ejs
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│ │ │ │ ├── login.ejs
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│ │ │ │ ├── register.ejs
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│ │ │ │ ├── loadboard.ejs
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│ │ │ │ ├── driver-dashboard.ejs
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│ │ │ │ ├── shipper-dashboard.ejs
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│ │ │ │ ├── broker-dashboard.ejs
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│ │ │ │ └── admin-dashboard.ejs
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│ │ │ └── partials/
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│ │ │ ├── header.ejs
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│ │ │ ├── footer.ejs
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│ │ │ ├── nav.ejs
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│ │ │ └── load-card.ejs
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│ │ ├── public/
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│ │ │ ├── css/
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│ │ │ │ ├── main.css # Global styles
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│ │ │ │ ├── govt-theme.css # Govt-app aesthetic
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│ │ │ │ └── components.css # Reusable components
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│ │ │ ├── js/
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│ │ │ │ ├── app.js # Client-side logic
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│ │ │ │ └── sw.js # Service Worker
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│ │ │ ├── images/
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│ │ │ └── manifest.json # PWA manifest
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│ │ └── config/
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│ │ ├── env.js # Environment config
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│ │ └── constants.js # App constants
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│ ├── package.json
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│ ├── Dockerfile
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│ ├── .env.example
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│ └── .dockerignore
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├── docker/
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│ └── docker-compose.yml
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├── scripts/
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│ └── seed.js # DB seed data
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├── docs/
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└── README.md
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```
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---
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## 4. Authentication Flow
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```
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User (Phone) → Enter Number → Supabase OTP → Verify Code → Session Created
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│
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┌───────────────┼───────────────┐
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│ │ │
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New User? Existing User Admin?
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│ │ │
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Role Selection Dashboard Admin Panel
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│
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Profile Setup
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│
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Dashboard
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```
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- **Session:** Supabase JWT stored in httpOnly cookie
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- **Role check:** Middleware reads user role from `profiles` table
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- **Rate limiting:** Free users get 5 bids/day (tracked in DB)
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---
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## 5. Data Flow — Load Lifecycle
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```
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Shipper Posts Load → Load Board (visible to all)
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│
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Drivers Browse
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│
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Driver Bids (price + ETA)
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│
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Shipper Reviews Bids
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│
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Accepts Best Bid
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│
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┌───────────┼───────────┐
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│ │
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Driver Notified Load Status: "Booked"
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│
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Trip Starts → In Transit → Delivered
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│
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Payment (UPI link) → Confirmed → Complete
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```
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---
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## 6. Security Architecture
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| Layer | Measure |
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|-------|---------|
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| Transport | HTTPS via Cloudflare SSL |
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| Auth | Supabase JWT + httpOnly cookies |
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| Sessions | Server-side validation on every request |
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| Input | Sanitization + validation (express-validator) |
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| SQL | Parameterized queries via Supabase client |
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| Rate Limiting | express-rate-limit (API) + DB-level (bids) |
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| CORS | Restricted to bharathtrucks.com |
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| Headers | Helmet.js security headers |
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| File Upload | Type + size validation, Supabase Storage |
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| Admin | Separate auth flow, IP whitelist optional |
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---
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## 7. Performance Strategy
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| Technique | Implementation |
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| Server-side rendering | EJS — no client-side framework overhead |
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| Minimal JS | Progressive enhancement, no SPA |
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| Image optimization | WebP, lazy loading, CDN-cached |
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| Database | Indexed queries, connection pooling |
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| Caching | Cloudflare page rules for static assets |
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| PWA | Service Worker caches shell + recent loads |
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| Compression | gzip via Express compression middleware |
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| Bundle size | No framework = ~5KB JS total |
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**Target:** < 3 second full page load on 3G connection
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---
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## 8. Scalability Plan
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| Users | Infrastructure |
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|-------|---------------|
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| 0–1000 | Single Hostinger VPS (4GB RAM), Supabase free tier |
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| 1000–5000 | Upgrade VPS (8GB), Supabase Pro |
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| 5000–20000 | Add Redis caching, CDN optimization |
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| 20000+ | Horizontal scaling (multiple containers), dedicated DB |
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---
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## 9. Third-Party Integrations
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| Service | Purpose | Phase |
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|---------|---------|-------|
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| Supabase | DB + Auth + Storage + Realtime | Phase 1 |
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| Cloudflare | CDN + DNS + SSL | Phase 1 |
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| WhatsApp API (wa.me links) | Share loads | Phase 1 |
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| SMS Gateway (MSG91/Twilio) | Critical notifications | Phase 2 |
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| Razorpay/UPI | Payment processing | Phase 2 |
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| Google Maps API | Route visualization | Phase 2 |
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---
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## 10. Environment Configuration
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```env
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# Server
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NODE_ENV=production
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PORT=3000
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# Supabase
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SUPABASE_URL=https://xxx.supabase.co
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SUPABASE_ANON_KEY=eyJ...
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SUPABASE_SERVICE_KEY=eyJ...
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# App
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APP_URL=https://bharathtrucks.com
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SESSION_SECRET=xxx
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RATE_LIMIT_BIDS_PER_DAY=5
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# Optional (Phase 2)
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SMS_API_KEY=xxx
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RAZORPAY_KEY=xxx
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```
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---
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*This architecture prioritizes simplicity, speed, and low-cost operation while supporting growth to 20K+ users.*
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