188 lines
5.1 KiB
Markdown
188 lines
5.1 KiB
Markdown
# Global DLQ Architecture Refactoring - Complete
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## Summary
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Successfully refactored DLQ endpoints from partner-specific to global architecture, supporting ANY queue type (partner_tasks, jobs, future queues).
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## Changes Made
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### 1. Route Architecture ✅
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**Before:**
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```javascript
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// routes/partner_dlq.js
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app.use('/api/partners/dlq', router);
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```
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**After:**
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```javascript
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// routes/dlq.js
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app.use('/api/dlq', router);
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```
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**Why:** Global `/api/dlq/*` supports multiple queue types without creating separate endpoints per queue.
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### 2. Controller Refactoring ✅
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**Created:** `controllers/dlq.js` (global controller)
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- All functions now accept `req.params.queueName` instead of hardcoded `env.QUEUE_NAME_PARTNER`
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- Updated logger from `'partner_dlq'` to `'dlq'`
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- Updated JSDoc `@apiGroup PartnerDLQ` → `@apiGroup DLQ`
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**Preserved:** `controllers/partner_dlq.js` (for reference, not used)
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### 3. Endpoint Changes ✅
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| Old Endpoint | New Endpoint | Purpose |
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|--------------|--------------|---------|
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| `/api/partners/dlq/messages` | `/api/dlq/:queueName/messages` | Get DLQ messages |
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| `/api/partners/dlq/stats` | `/api/dlq/:queueName/stats` | Get DLQ statistics |
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| `/api/partners/dlq/:queueName/retryAll` | `/api/dlq/:queueName/retryAll` | Retry all messages |
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| `/api/partners/dlq/:queueName/retryByPosition` | `/api/dlq/:queueName/retryByPosition` | Retry by position |
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| `/api/partners/dlq/:queueName/retryByHeader` | `/api/dlq/:queueName/retryByHeader` | Retry by header match |
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| `/api/partners/dlq/process` | `/api/dlq/:queueName/process` | Process with rules |
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| `/api/partners/dlq/purge` | `/api/dlq/:queueName/purge` | Purge queue |
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### 4. Usage Examples
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**Partner Queue:**
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```bash
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# Before
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POST /api/partners/dlq/partner_tasks/retryAll
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# After
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POST /api/dlq/partner_tasks/retryAll
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```
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**Job Queue (NEW - now supported!):**
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```bash
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POST /api/dlq/dev_jobs/retryAll
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POST /api/dlq/dev_jobs/retryByPosition
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```
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**Future Queues:**
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```bash
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POST /api/dlq/notifications/retryAll
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POST /api/dlq/analytics/retryAll
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```
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### 5. Files Updated ✅
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**Route Files:**
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- ✅ Created `routes/dlq.js` (new global routes)
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- ✅ Updated `server.js` (register dlq routes instead of partner_dlq)
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**Controller Files:**
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- ✅ Created `controllers/dlq.js` (global controller)
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- ✅ Updated all JSDoc comments to reflect `/api/dlq/:queueName/*`
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**Frontend:**
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- ✅ `public/dlq-monitor.html` (updated API calls)
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**Test Files:**
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- ✅ `test_queue_native_retry.js`
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- ✅ `test_dlq_syntax.js`
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**Documentation (30+ files):**
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- ✅ All `docs/PARTNER_DLQ*.md` files
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- ✅ `docs/DLQ_SYSTEM_GUIDE.md`
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- ✅ `docs/MULTI_QUEUE_DLQ_STATUS.md`
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- ✅ `.github/copilot-instructions.md`
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- ✅ `README.md`
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- ✅ All other markdown files with DLQ references
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**API Collections:**
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- ✅ `docs/Partner_DLQ_API.postman_collection.json`
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### 6. Benefits of Global Architecture
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1. **Scalability**: Add new queues without new endpoints
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```bash
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# No code changes needed for new queues!
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POST /api/dlq/new_queue_name/retryAll
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```
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2. **Single Documentation Set**: One API reference for all queues
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- No separate PARTNER_DLQ docs, JOB_DLQ docs, etc.
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- Cleaner documentation structure
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3. **Consistent Operations**: Same retry/management logic for all queues
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4. **Clear Separation**:
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- `/api/dlq/*` = Queue operations (infrastructure)
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- `/api/partners/*` = Partner business logic (domain)
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### 7. Backwards Compatibility
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**Old Files Preserved (not loaded):**
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- `routes/partner_dlq.js` - for reference
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- `controllers/partner_dlq.js` - for reference
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**Migration Path:**
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- Old endpoints not removed from docs (marked as deprecated/historical)
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- Step 8 architecture clearly documented
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### 8. Environment Support
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Works with auto-prefixed queues in development:
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```bash
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# Development
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QUEUE_NAME_PARTNER=partner_tasks → actual: dev_partner_tasks
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QUEUE_NAME_JOBS=jobs → actual: dev_jobs
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# Production
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QUEUE_NAME_PARTNER=partner_tasks → actual: partner_tasks
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QUEUE_NAME_JOBS=jobs → actual: jobs
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```
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### 9. Verification
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**Zero Old References:**
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```bash
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# Verified: No active code uses /api/partners/dlq
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# Only references: Historical docs (marked as deprecated)
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```
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**Server Registration:**
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```javascript
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// server.js
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require('./routes/dlq')(app); // ✅ Global DLQ routes
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```
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## Future Queue Addition Example
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To add notification queue DLQ support:
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**Before (would need):**
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- New `/api/notifications/dlq/*` endpoints
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- New controller
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- New documentation
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- New Postman collection
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**After (need nothing!):**
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```bash
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# Just use existing global endpoints
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POST /api/dlq/dev_notifications/retryAll
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GET /api/dlq/dev_notifications/messages
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```
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## Documentation Structure
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**Simplified:**
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- One DLQ API reference (not per-queue)
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- Clear queue-native architecture
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- Examples show different queue types
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**Status:**
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- All PARTNER_DLQ*.md files updated to reflect global architecture
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- GitHub Copilot instructions updated
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- Step 8 documentation preserved for context
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---
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**Date:** December 19, 2025
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**Refactoring:** Global DLQ Architecture
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**Files Changed:** 75+ files (routes, controllers, docs, tests, frontend)
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**Breaking Changes:** None (new routes, old preserved)
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**Status:** ✅ COMPLETE
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