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Monetization System - Implementation Summary

Overview

This document provides a comprehensive summary of the monetization system implementation for the Algo Cloud IDE platform. The system includes subscription management, usage-based billing, payment processing, prepaid credits, and usage alerts.

What Has Been Implemented

1. Database Schema ✅

File: backend/database/monetization-schema.sql

Created comprehensive database schema with 15+ tables including subscription_plans, usage_metrics, billing_history, stored_payment_methods, usage_alerts, prepaid_credits, and more.

Default Plans:

  • Free Tier: $0/month (500MB storage, 500 compute hours, 10GB bandwidth)
  • Pro Tier: $15/month (5GB storage, 2000 compute hours, 50GB bandwidth)
  • Team Tier: $49/month (20GB storage, 5000 compute hours, 200GB bandwidth)
  • Enterprise Tier: Custom pricing (unlimited resources)

2. Backend Services ✅

Four comprehensive TypeScript services:

  • SubscriptionService: Plan management, upgrades, downgrades, cancellations with proration
  • UsageTrackingService: Real-time usage tracking, cost calculation, alert triggering
  • BillingService: Invoice generation, payment processing, webhook handling
  • CreditsService: Prepaid credits, auto-reload, transaction management

3. API Routes ✅

30+ RESTful API endpoints across 5 route modules:

  • Subscription routes: plans, subscribe, upgrade, downgrade, cancel
  • Usage routes: current usage, history, project summaries
  • Billing routes: invoices, payments, payment methods, webhooks
  • Credits routes: balance, purchase, auto-reload
  • Alerts routes: configure, history, toggle

4. Frontend Components ✅

Four polished React components with responsive CSS:

  • Pricing Page: Tier comparison with monthly/yearly toggle
  • Billing Dashboard: Usage visualization, invoice history
  • Credits Management: Purchase, auto-reload, transaction history
  • Usage Alerts: Configure thresholds and notifications

5. Documentation ✅

  • MONETIZATION_SYSTEM.md: Complete technical documentation
  • SECURITY_WARNINGS.md: Critical security considerations
  • Environment configuration added to .env.example

Usage-Based Pricing

  • Deployment Hours: $0.01/hour
  • Database Storage: $0.10/GB/month
  • Bandwidth: $0.05/GB beyond quota
  • AI API Usage: Cost + 20% markup (for platform-managed keys)

Critical TODOs Before Production ⚠️

  1. Payment Processing: Replace mock with Stripe SDK integration
  2. Webhook Verification: Implement signature verification
  3. Notifications: Implement email/SMS alert system
  4. Auto-Reload: Implement payment processing for auto-reload
  5. Authentication: Add auth middleware to routes
  6. TypeScript: Enable strict mode and fix type errors
  7. Testing: Add unit and integration tests
  8. Dependencies: Run npm install and verify build

See SECURITY_WARNINGS.md for detailed information.

File Structure

backend/
├── database/monetization-schema.sql
├── src/
│   ├── services/
│   │   ├── subscription-service.ts
│   │   ├── usage-tracking-service.ts
│   │   ├── billing-service.ts
│   │   └── credits-service.ts
│   └── routes/
│       ├── subscription-routes.ts
│       ├── usage-routes.ts
│       ├── billing-routes.ts
│       ├── credits-routes.ts
│       └── alerts-routes.ts
src/components/
├── Pricing.tsx/css
├── BillingDashboard.tsx/css
├── CreditsManagement.tsx/css
└── UsageAlerts.tsx/css

Quick Start

  1. Apply database schema:

    psql -U algo_user -d algo_ide -f backend/database/monetization-schema.sql

  2. Install dependencies:

    cd backend && npm install

  3. Configure environment variables in .env

  4. Start backend:

    npm run dev

  5. Test API:

    curl http://localhost:4000/api/subscriptions/plans

For complete documentation, see MONETIZATION_SYSTEM.md and SECURITY_WARNINGS.md.