agmission/Development/server/docs/archived/PARTNER_DLQ_INDEX.md

Partner DLQ API - Complete Documentation Index

📚 Quick Navigation

🚀 Getting Started

1. Quick Start Guide - Start here!

   • Web dashboard access
   • API quick examples
   • CLI tool usage
   • Common operations

2. Deployment Checklist

   • Pre-deployment verification
   • Step-by-step deployment
   • Post-deployment configuration
   • Rollback procedures

📖 Reference Documentation

3. API Specification

   • Complete endpoint reference
   • Request/response schemas
   • Authentication details
   • Usage examples (curl, JavaScript)

4. Operations Guide

   • System architecture
   • Error categories
   • Configuration reference
   • Troubleshooting procedures
   • Monitoring recommendations

5. Implementation Details

   • Technical architecture
   • Code structure
   • Error categorization logic
   • Processing decision trees
   • Performance characteristics

6. Architecture Diagrams

   • System overview
   • Message flow
   • Error categorization
   • API structure
   • Security flow

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📂 File Structure

Code Files

server/
├── controllers/
│   └── partner_dlq.js                    # Main DLQ controller (600+ lines)
│
├── routes/
│   └── partner.js                        # DLQ routes (modified)
│
├── workers/
│   └── partner_dlq_handler.js            # Background DLQ worker (existing)
│
├── scripts/
│   ├── monitor_partner_dlq.js            # CLI monitoring tool (existing)
│   └── test_dlq_api.sh                   # API test suite (new)
│
└── public/
    └── dlq-monitor.html                  # Web dashboard (500+ lines)

Documentation Files

server/
├── PARTNER_DLQ_API_SUMMARY.md            # Complete implementation summary
├── README.md                             # Updated with DLQ section
│
└── docs/
    ├── PARTNER_DLQ_QUICKSTART.md         # Quick start guide
    ├── PARTNER_DLQ_API.md                # API reference
    ├── PARTNER_DLQ_HANDLING.md           # Operations guide
    ├── PARTNER_DLQ_IMPLEMENTATION.md     # Technical details
    ├── PARTNER_DLQ_ARCHITECTURE_DIAGRAMS.md # Visual diagrams
    ├── PARTNER_DLQ_DEPLOYMENT_CHECKLIST.md  # Deployment guide
    └── Partner_DLQ_API.postman_collection.json # Postman collection

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🎯 Use Case Index

For Administrators

Daily Operations:

• Checking DLQ Health - Quick commands
• Web Dashboard Usage - Visual monitoring
• Processing Failed Tasks - Batch operations

Troubleshooting:

• High DLQ Count - Resolution steps
• Stuck Tasks - Debugging
• Common Issues - Quick fixes

Reporting:

• Statistics API - Get metrics
• Recent Failures - View errors
• Error Categorization - Understand patterns

For Developers

Integration:

• API Reference - Complete endpoint documentation
• Postman Collection - Import and test
• Code Examples - Integration patterns

Architecture:

• System Overview - High-level design
• Message Flow - Processing pipeline
• Data Models - Database schema

Testing:

• Test Suite - Automated tests
• Manual Testing - Test procedures
• Postman Collection - API testing

For DevOps

Deployment:

• Deployment Checklist - Step-by-step guide
• Configuration - Environment variables
• Background Services - Setup options

Monitoring:

• Monitoring Setup - Alert configuration
• Key Metrics - What to track
• Alert Thresholds - When to alert

Operations:

• Daily Operations - Daily tasks
• Incident Response - Emergency procedures
• Rollback - Recovery steps

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🔍 Quick Reference

Common Commands

# Web Dashboard
open http://localhost:3000/dlq-monitor.html

# CLI Monitoring
node scripts/monitor_partner_dlq.js

# Get Statistics
curl -H "Authorization: Bearer $TOKEN" \
  http://localhost:3000/api/dlq/partner_tasks/stats

# Process DLQ (Dry Run)
curl -X POST -H "Authorization: Bearer $TOKEN" \
  -H "Content-Type: application/json" \
  -d '{"dryRun": true}' \
  http://localhost:3000/api/dlq/partner_tasks/process

# Run Test Suite
./scripts/test_dlq_api.sh

# Start Background Handler
pm2 start workers/partner_dlq_handler.js --name partner-dlq-handler -- monitor

API Endpoints Summary

Endpoint	Method	Purpose
/api/partners/dlq/stats	GET	Get statistics
/api/partners/dlq/messages	GET	View messages
/api/partners/dlq/process	POST	Process DLQ
/api/dlq/:queueName/retryAll	POST	Retry all messages
/api/dlq/:queueName/retryByPosition	POST	Retry by position
/api/dlq/:queueName/retryByHeader	POST	Retry by header
/api/partners/dlq/purge	DELETE	Purge queue

Error Categories

Category	Description	Action
🔵 Transient	Network/connection issues	Auto-retry < 2h
🔴 Validation	Invalid data	Archive immediately
🟠 Processing	Parse/calculation errors	Manual review
⚪ Infrastructure	Database/filesystem	Retry with backoff
🟣 Partner API	Auth/rate limiting	Retry with delay
⚫ Unknown	Unclassified	Manual review

Configuration Variables

# Queue Settings
QUEUE_NAME_PARTNER=partner_tasks  # Auto-prefixes with 'dev_' in development mode
PARTNER_MAX_RETRIES=5

# DLQ Settings  
DLQ_CHECK_INTERVAL=300000      # 5 minutes
MAX_DLQ_AGE_MS=86400000        # 24 hours
AUTO_RETRY_WINDOW_MS=7200000   # 2 hours

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📞 Getting Help

Documentation Issues

If you find errors or missing information in the documentation:

1. Check the Implementation Details for technical depth
2. Review Architecture Diagrams for visual explanations
3. Contact the development team

Technical Issues

For technical problems:

1. Check Troubleshooting Guide
2. Review Operations Guide
3. Check application logs
4. Contact on-call engineer

Feature Requests

To request new features:

1. Review Future Enhancements
2. Document use case
3. Submit feature request to product team

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🔄 Version History

v1.0.0 (October 2, 2025) - Initial Release

Features:

• ✅ 6 REST API endpoints
• ✅ Web dashboard with auto-refresh
• ✅ Error categorization (6 types)
• ✅ Intelligent processing rules
• ✅ Manual retry/archive operations
• ✅ Comprehensive documentation
• ✅ Test suite
• ✅ Postman collection

Files:

• Created: 11 new files
• Modified: 2 existing files
• Total Lines: ~5000+ lines of code and documentation

Status: ✅ Production Ready

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📊 Documentation Statistics

Document	Lines	Purpose
Quick Start	~300	Getting started guide
API Spec	~500	Complete API reference
Operations	~400	Operational procedures
Implementation	~800	Technical details
Architecture	~600	Visual diagrams
Deployment	~500	Deployment guide
Total	~3100+	Complete documentation

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🎓 Learning Path

Beginner (New Administrators)

1. Start with Quick Start Guide
2. Explore Web Dashboard
3. Try CLI tool
4. Read Operations Guide

Intermediate (Developers)

1. Review API Specification
2. Study Architecture Diagrams
3. Test with Postman Collection
4. Read Implementation Details

Advanced (DevOps/Architects)

1. Study Implementation Details
2. Review Deployment Checklist
3. Configure monitoring and alerts
4. Plan integration with existing systems

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🚀 Next Steps

Immediate

• Read Quick Start Guide
• Access web dashboard
• Run test suite
• Review API documentation

Short Term

• Deploy to staging environment
• Train administrators
• Configure monitoring
• Test with real data

Long Term

• Deploy to production
• Set up automated processing
• Implement advanced features
• Optimize performance

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📝 Document Maintenance

This index is maintained as part of the Partner DLQ API documentation.

Last Updated: October 2, 2025
Version: 1.0.0
Maintainer: Development Team

For corrections or updates, please contact the development team.

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Ready to start? → Quick Start Guide