docs: add comprehensive implementation and deployment documentation
Add complete implementation summary and Kubernetes deployment guides: IMPLEMENTATION_COMPLETE.md (1,000+ lines): - Complete feature implementation summary - Backend security details (7 major features) - Gamification system documentation (points, badges) - Comments system implementation - Pagination implementation - Image upload system (Multer, Cloudinary) - Frontend features (MapView, Socket.IO, ErrorBoundary) - Testing infrastructure summary (54.75% backend coverage) - Full API endpoint documentation - Socket.IO events reference - Environment variables guide - Kubernetes deployment for Raspberry Pi cluster (600+ lines): * Multi-arch Docker images (ARM64, ARMv7) * Complete Dockerfiles for backend and frontend * Nginx configuration with React Router support * 7 Kubernetes manifests (namespace, configmap, secrets, MongoDB StatefulSet, backend/frontend deployments, ingress) * Resource optimization for Pi hardware (2x Pi 5 8GB, 1x Pi 3B+ 1GB) * NodeAffinity for strategic pod placement * Health checks and liveness/readiness probes * Deployment commands and verification steps * Monitoring and troubleshooting guide * Scaling and rolling update procedures - Statistics: 15,000+ lines of code, 76 issues resolved - Next steps and optional enhancements - OWASP Top 10 compliance checklist SECURITY_AUDIT_REPORT.md: - Comprehensive security audit findings - OWASP Top 10 assessment - Critical vulnerabilities addressed - Security best practices implemented - Compliance checklist IMPLEMENTATION_SUMMARY.md: - High-level implementation overview - Agent workstream summaries - Key achievements and metrics backend/IMPLEMENTATION_SUMMARY.md: - Backend-specific implementation details - Security features documentation - Gamification system architecture - API documentation Kubernetes Deployment Features: - Multi-stage Docker builds for minimal image size - ARM64 and ARMv7 support for Raspberry Pi cluster - Resource limits optimized for Pi hardware - MongoDB StatefulSet with persistent storage on Pi 5 nodes - Backend prefers Pi 5 nodes (more RAM for Node.js) - Frontend can run on any node (lightweight static serving) - Complete ingress configuration for single entry point - Health endpoints for monitoring - Step-by-step deployment guide - Monitoring and troubleshooting commands 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <noreply@anthropic.com>
This commit is contained in:
William Valentin
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# Backend Implementation Summary
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## Overview
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This document summarizes the critical backend features implemented for the Adopt-a-Street application.
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## Implemented Features
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### 1. Point System with Transactions ✅
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**Models Created:**
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- `/models/PointTransaction.js` - Tracks all point transactions with audit trail
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**Key Features:**
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- Atomic point awarding using MongoDB transactions
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- Point transaction history with user reference
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- Balance tracking after each transaction
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- Transaction types: street_adoption, task_completion, post_creation, event_participation, reward_redemption
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**Point Values:**
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- Street Adoption: +100 points
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- Task Completion: +50 points
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- Post Creation: +10 points
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- Event Participation: +75 points
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**Service Implementation:**
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- `/services/gamificationService.js` - Centralized gamification logic
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- `awardPoints()` - Generic point awarding function
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- `awardStreetAdoptionPoints()` - Award points for street adoption
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- `awardTaskCompletionPoints()` - Award points for task completion
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- `awardPostCreationPoints()` - Award points for post creation
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- `awardEventParticipationPoints()` - Award points for event participation
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- `deductRewardPoints()` - Deduct points for reward redemption
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**Integrated Routes:**
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- `POST /api/streets/:id/adopt` - Awards points on street adoption
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- `PUT /api/tasks/:id` - Awards points on task completion
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- `POST /api/posts` - Awards points on post creation
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- `PUT /api/events/rsvp/:id` - Awards points on event RSVP
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- `POST /api/rewards/redeem/:id` - Deducts points on reward redemption
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---
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### 2. Badge System with Auto-Awarding ✅
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**Models Created:**
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- `/models/Badge.js` - Badge definitions with criteria
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- `/models/UserBadge.js` - User badge awards with timestamps
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**Badge Categories:**
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1. **Street Adoption Badges** (4 badges)
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- First Adoption (1 street) - Common
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- Street Adopter (5 streets) - Rare
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- Neighborhood Champion (10 streets) - Epic
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- City Guardian (25 streets) - Legendary
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2. **Task Completion Badges** (4 badges)
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- First Task (1 task) - Common
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- Task Master (10 tasks) - Rare
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- Dedicated Worker (50 tasks) - Epic
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- Maintenance Legend (100 tasks) - Legendary
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3. **Post Creation Badges** (4 badges)
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- First Post (1 post) - Common
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- Social Butterfly (25 posts) - Rare
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- Community Voice (100 posts) - Epic
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- Social Media Star (250 posts) - Legendary
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4. **Event Participation Badges** (4 badges)
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- Event Participant (1 event) - Common
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- Community Leader (5 events) - Rare
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- Event Enthusiast (15 events) - Epic
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- Community Pillar (30 events) - Legendary
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5. **Point Collection Badges** (3 badges)
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- Point Collector (1,000 points) - Rare
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- Point Hoarder (5,000 points) - Epic
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- Point Master (10,000 points) - Legendary
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**Service Functions:**
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- `checkAndAwardBadges(userId, session)` - Checks and awards eligible badges
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- `getUserBadgeProgress(userId)` - Gets user's progress towards all badges
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- `getUserStats(userId)` - Retrieves user's achievement statistics
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**Routes Created:**
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- `GET /api/badges` - List all available badges
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- `GET /api/badges/progress` - Get authenticated user's badge progress
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- `GET /api/badges/users/:userId` - Get badges earned by a user
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- `GET /api/badges/:badgeId` - Get specific badge details
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**Seeder Script:**
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- `/scripts/seedBadges.js` - Seeds initial 19 badges
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- Run with: `npm run seed:badges`
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---
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### 3. Comments System for Posts ✅
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**Model Created:**
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- `/models/Comment.js` - Comment model with user and post references
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**Routes Created:**
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- `GET /api/posts/:postId/comments` - List comments (paginated)
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- `POST /api/posts/:postId/comments` - Create comment
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- `DELETE /api/posts/:postId/comments/:commentId` - Delete own comment
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**Features:**
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- Comment validation (max 500 characters)
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- Comment count tracking on posts
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- Socket.IO real-time notifications:
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- `newComment` event - Emitted when comment is created
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- `commentDeleted` event - Emitted when comment is deleted
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- User population (name, profilePicture)
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- Pagination support
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**Post Model Updates:**
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- Added `commentsCount` field
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- Auto-increments/decrements on comment creation/deletion
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---
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### 4. Pagination for All List Endpoints ✅
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**Middleware Created:**
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- `/middleware/pagination.js` - Reusable pagination middleware
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**Pagination Parameters:**
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- `page` (default: 1) - Current page number
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- `limit` (default: 10, max: 100) - Items per page
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**Response Format:**
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```json
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{
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"data": [...],
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"pagination": {
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"currentPage": 1,
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"totalPages": 10,
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"totalCount": 95,
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"itemsPerPage": 10,
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"hasNextPage": true,
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"hasPrevPage": false
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}
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}
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```
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**Updated Routes:**
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- `GET /api/streets` - Paginated street listing
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- `GET /api/tasks` - Paginated task listing
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- `GET /api/posts` - Paginated post listing
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- `GET /api/events` - Paginated event listing
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- `GET /api/rewards` - Paginated reward listing
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- `GET /api/reports` - Paginated report listing
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- `GET /api/posts/:postId/comments` - Paginated comment listing
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**Performance Optimizations:**
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- Added indexes for pagination queries
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- Proper sorting by creation date or relevance
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- Population of referenced data (users, streets, etc.)
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---
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### 5. Image Upload with Multer & Cloudinary ✅
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**Configuration:**
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- `/config/cloudinary.js` - Cloudinary configuration and helpers
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- `/middleware/upload.js` - Multer configuration with validation
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**Upload Specifications:**
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- File size limit: 5MB
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- Allowed formats: JPG, JPEG, PNG, GIF, WebP
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- Storage: Memory storage (buffer-based)
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- Cloudinary optimization:
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- Max dimensions: 1000x1000px
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- Auto quality optimization
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- Auto format selection (WebP where supported)
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**Image Upload Endpoints:**
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- `POST /api/posts` - Create post with optional image
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- `POST /api/posts/:id/image` - Add/update image on existing post
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- `POST /api/reports` - Create report with optional image
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- `POST /api/reports/:id/image` - Add/update image on existing report
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**Features:**
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- Image deletion when replacing images
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- Public ID tracking for Cloudinary cleanup
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- Error handling for invalid file types/sizes
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- Authorization checks (users can only modify their own content)
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**Model Updates:**
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- **Post Model:**
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- `imageUrl` - Cloudinary URL
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- `cloudinaryPublicId` - For deletion tracking
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- **Report Model:**
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- `imageUrl` - Cloudinary URL
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- `cloudinaryPublicId` - For deletion tracking
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**Environment Variables:**
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```env
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CLOUDINARY_CLOUD_NAME=your_cloudinary_cloud_name
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CLOUDINARY_API_KEY=your_cloudinary_api_key
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CLOUDINARY_API_SECRET=your_cloudinary_api_secret
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```
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---
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## File Structure
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```
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backend/
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├── config/
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│ └── cloudinary.js # Cloudinary configuration
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├── middleware/
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│ ├── pagination.js # Pagination middleware
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│ └── upload.js # Multer upload middleware
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├── models/
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│ ├── Badge.js # Badge definitions
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│ ├── Comment.js # Post comments
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│ ├── PointTransaction.js # Point transaction history
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│ └── UserBadge.js # User badge awards
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├── routes/
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│ ├── badges.js # Badge routes (NEW)
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│ ├── comments.js # Comment routes (NEW)
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│ ├── events.js # Updated with points & pagination
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│ ├── posts.js # Updated with points, images & pagination
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│ ├── reports.js # Updated with images & pagination
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│ ├── rewards.js # Updated with point deduction & pagination
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│ ├── streets.js # Updated with pagination
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│ └── tasks.js # Updated with pagination
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├── scripts/
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│ └── seedBadges.js # Badge seeding script
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├── services/
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│ └── gamificationService.js # Gamification logic
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├── .env.example # Updated with Cloudinary vars
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├── package.json # Added seed:badges script
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└── server.js # Updated with new routes & Socket.IO
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```
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---
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## Database Schema Changes
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### User Model Updates
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- `points` field already existed
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- Virtual `earnedBadges` population
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- Indexes on `email` and `points`
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### New Collections
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1. **PointTransactions**
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- Indexes: `user`, `type`, `user + createdAt`, `type + createdAt`
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2. **Badges**
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- Indexes: `criteria.type + criteria.threshold`, `rarity`, `order`
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3. **UserBadges**
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- Unique compound index: `user + badge`
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- Index: `user + earnedAt`
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4. **Comments**
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- Compound index: `post + createdAt`
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- Indexes: `user`, `post`
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---
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## API Endpoints Summary
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### New Endpoints
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**Badges:**
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- `GET /api/badges` - List all badges
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- `GET /api/badges/progress` - User's badge progress (authenticated)
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- `GET /api/badges/users/:userId` - User's earned badges
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- `GET /api/badges/:badgeId` - Badge details
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**Comments:**
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- `GET /api/posts/:postId/comments` - List comments (paginated)
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- `POST /api/posts/:postId/comments` - Create comment
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- `DELETE /api/posts/:postId/comments/:commentId` - Delete comment
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**Image Uploads:**
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- `POST /api/posts/:id/image` - Add/update post image
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- `POST /api/reports/:id/image` - Add/update report image
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### Updated Endpoints (Breaking Changes)
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All list endpoints now return paginated responses:
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- `GET /api/streets?page=1&limit=10`
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- `GET /api/tasks?page=1&limit=10`
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- `GET /api/posts?page=1&limit=10`
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- `GET /api/events?page=1&limit=10`
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- `GET /api/rewards?page=1&limit=10`
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- `GET /api/reports?page=1&limit=10`
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Point-awarding endpoints now return additional data:
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```json
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{
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"street": {...},
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"pointsAwarded": 100,
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"newBalance": 150,
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"badgesEarned": [...]
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}
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```
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---
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## Socket.IO Events
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### New Events
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- `joinPost` - Join a post room for comment updates
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- `newComment` - Emitted when comment is created on a post
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- `commentDeleted` - Emitted when comment is deleted
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### Updated Events
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- `joinEvent` - Now uses `event_${eventId}` room naming
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- `eventUpdate` - Now emits to `event_${eventId}` rooms
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---
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## Testing & Setup
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### Initial Setup
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1. Install dependencies (already done):
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```bash
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npm install
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```
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2. Configure environment variables:
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```bash
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cp .env.example .env
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# Edit .env with your Cloudinary credentials
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```
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3. Seed badges:
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```bash
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npm run seed:badges
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```
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4. Start server:
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```bash
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npm run dev
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```
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### Verify Installation
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```bash
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# Check for linting errors
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npx eslint .
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# Run tests
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npm test
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```
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---
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## Security Features
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1. **MongoDB Transactions:**
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- Point awards are atomic
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- Prevents double-awarding
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- Rollback on errors
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2. **Image Upload Security:**
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- File type validation
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- File size limits (5MB)
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- Authorization checks
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- Cloudinary public ID tracking
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3. **Comment Security:**
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- Max length validation (500 chars)
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- Authorization for deletion
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- Input sanitization (trim)
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4. **Pagination Security:**
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- Max limit enforcement (100 items)
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- Parameter validation
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---
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## Performance Considerations
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1. **Database Indexes:**
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- All pagination queries have proper indexes
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- User points indexed for leaderboards
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- Comment queries optimized with compound indexes
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2. **Cloudinary Optimization:**
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- Auto image compression
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- Format optimization (WebP)
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- Dimension limiting (1000x1000)
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3. **Transaction Efficiency:**
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- Badge checking uses single stats query
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- Batch badge evaluation
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- Minimal database round-trips
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---
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## Breaking Changes
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⚠️ **Frontend Updates Required:**
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1. **Pagination:** All list endpoints now return paginated responses. Frontend must handle the new response format with `data` and `pagination` fields.
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2. **Point Awards:** POST/PUT endpoints that award points now return additional fields (`pointsAwarded`, `newBalance`, `badgesEarned`).
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3. **Socket.IO Rooms:** Event rooms now use `event_${eventId}` naming convention.
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---
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## Next Steps
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### Recommended Frontend Updates
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1. Update API clients to handle paginated responses
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2. Add pagination UI components
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3. Display badge progress and earned badges
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4. Add comment components to posts
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5. Implement image upload for posts and reports
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6. Add real-time comment notifications via Socket.IO
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7. Display point awards and badge unlocks as toast notifications
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### Optional Backend Enhancements
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1. Add badge progress tracking (partial completion)
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2. Implement consecutive day badges
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3. Add leaderboard endpoints (top points, most badges)
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4. Add badge showcasing/favorites
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5. Implement comment likes/replies (threading)
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6. Add image moderation
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7. Implement point transaction history endpoint
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8. Add user point adjustment endpoint (admin only)
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---
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## Dependencies
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All required dependencies are already installed:
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- `multer` - File upload handling
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- `cloudinary` - Image storage and optimization
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- `mongoose` - MongoDB ODM with transaction support
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---
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## Documentation
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### For Developers
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- All functions include JSDoc comments
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- Complex logic includes inline comments
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- Error handling with proper status codes
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- Consistent response formats
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### For API Users
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- All endpoints follow RESTful conventions
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- Consistent error response format
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- Proper HTTP status codes
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- Validation messages included
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---
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## Summary
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✅ **Fully Implemented:**
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1. Point system with transaction tracking
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2. Badge system with 19 auto-awarded badges
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3. Comments system with real-time updates
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4. Pagination for all list endpoints
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5. Image uploads with Cloudinary integration
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✅ **All routes updated and tested**
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✅ **Database models created with proper indexes**
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✅ **Socket.IO events configured**
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✅ **Environment configuration documented**
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✅ **Seeding script created**
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The backend is now feature-complete and ready for frontend integration!
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Reference in New Issue
Block a user