feat(#66): implement tag filtering in search API endpoint
Add support for filtering search results by tags in the main search endpoint. Changes: - Add tags parameter to SearchQueryDto (comma-separated tag slugs) - Implement tag filtering in SearchService.search() method - Update SQL query to join with knowledge_entry_tags when tags provided - Entries must have ALL specified tags (AND logic) - Add tests for tag filtering (2 controller tests, 2 service tests) - Update endpoint documentation - Fix non-null assertion linting error The search endpoint now supports: - Full-text search with ranking (ts_rank) - Snippet generation with highlighting (ts_headline) - Status filtering - Tag filtering (new) - Pagination Example: GET /api/knowledge/search?q=api&tags=documentation,tutorial All tests pass (25 total), type checking passes, linting passes. Fixes #66 Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
This commit is contained in:
Jason Woltje
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docs/scratchpads/orch-102-health.md
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docs/scratchpads/orch-102-health.md
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# Issue ORCH-102: Create Server with Health Checks
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## Objective
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Basic HTTP server for orchestrator API with health check endpoint. The orchestrator uses NestJS (not Fastify as originally specified).
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## Acceptance Criteria
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Based on the issue template (adapted for NestJS):
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- [x] ~~Fastify server~~ NestJS server in `src/main.ts` - DONE
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- [ ] Health check endpoint: GET /health (returns 200 OK with exact format)
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- [x] Configuration loaded from environment variables - DONE (orchestrator.config.ts)
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- [x] Pino logger integrated - DONE (NestJS Logger used)
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- [x] Server starts on port 3001 (configurable) - DONE (ORCHESTRATOR_PORT env var)
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- [ ] Graceful shutdown handler - NEEDS IMPLEMENTATION
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## Current State Analysis
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### What's Already Implemented
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1. **NestJS Server** (`src/main.ts`)
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- Basic NestJS bootstrap
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- Port configuration from env var (ORCHESTRATOR_PORT, default 3001)
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- NestJS Logger configured
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- Server listening on 0.0.0.0
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2. **Health Controller** (`src/api/health/health.controller.ts`)
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- GET /health endpoint exists
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- Returns status object
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- BUT: Format doesn't match requirements exactly
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3. **Configuration** (`src/config/orchestrator.config.ts`)
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- Comprehensive environment variable loading
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- Valkey, Docker, Git, Claude, Killswitch, Sandbox configs
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- Port configuration
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4. **Module Structure**
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- HealthModule properly set up
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- ConfigModule globally configured
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- BullMQ configured with Valkey connection
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### What Needs to be Completed
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1. **Health Endpoint Format** - Current format vs Required format:
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**Current:**
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```json
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{
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"status": "ok",
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"service": "orchestrator",
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"version": "0.0.6",
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"timestamp": "2026-02-02T10:00:00Z"
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}
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```
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**Required (from issue):**
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```json
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{
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"status": "healthy",
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"uptime": 12345,
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"timestamp": "2026-02-02T10:00:00Z"
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}
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```
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Need to:
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- Change "ok" to "healthy"
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- Add uptime field (process uptime in seconds)
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- Remove extra fields (service, version) to match spec exactly
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2. **Graceful Shutdown Handler**
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- Need to implement graceful shutdown in main.ts
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- Should close connections cleanly
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- Should allow in-flight requests to complete
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- NestJS provides enableShutdownHooks() and app.close()
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## Approach
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### Phase 1: Write Tests (TDD - RED)
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1. Create test file: `src/api/health/health.controller.spec.ts`
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2. Test cases:
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- Should return 200 OK status
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- Should return exact format: { status, uptime, timestamp }
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- Status should be "healthy"
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- Uptime should be a number > 0
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- Timestamp should be valid ISO 8601 string
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### Phase 2: Update Health Endpoint (GREEN)
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1. Track process start time
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2. Update health controller to return exact format
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3. Calculate uptime from start time
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4. Ensure tests pass
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### Phase 3: Graceful Shutdown (RED-GREEN-REFACTOR)
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1. Write tests for graceful shutdown (if testable)
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2. Implement enableShutdownHooks()
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3. Add process signal handlers (SIGTERM, SIGINT)
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4. Test shutdown behavior
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## Implementation Notes
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### Process Uptime
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- Track when app starts: `const startTime = Date.now()`
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- Calculate uptime: `Math.floor((Date.now() - startTime) / 1000)`
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- Store in a service or make accessible to controller
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### NestJS Graceful Shutdown
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```typescript
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app.enableShutdownHooks();
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process.on("SIGTERM", async () => {
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logger.log("SIGTERM received, closing gracefully...");
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await app.close();
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});
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process.on("SIGINT", async () => {
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logger.log("SIGINT received, closing gracefully...");
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await app.close();
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});
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```
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## Testing Plan
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### Unit Tests
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- Health controller returns correct format
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- Uptime increments over time
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- Timestamp is current
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### Integration Tests (Future)
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- Server starts successfully
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- Health endpoint accessible via HTTP
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- Graceful shutdown completes
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## Progress
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- [x] Create scratchpad
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- [x] Write health controller tests
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- [x] Create HealthService to track uptime
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- [x] Update health controller to match spec
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- [x] Verify tests pass (9/9 passing)
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- [x] Implement graceful shutdown
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- [x] Update .env.example with orchestrator configuration
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- [x] Verify typecheck and build pass
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## Completed Implementation
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### Files Created
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1. **src/api/health/health.service.ts** - Service to track process uptime
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2. **src/api/health/health.controller.spec.ts** - Unit tests for health controller (9 tests, all passing)
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### Files Modified
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1. **src/api/health/health.controller.ts** - Updated to return exact format with uptime
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2. **src/api/health/health.module.ts** - Added HealthService provider
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3. **src/main.ts** - Added graceful shutdown handlers for SIGTERM and SIGINT
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4. **.env.example** - Added orchestrator configuration section
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### Test Results
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All 9 tests passing:
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- Health endpoint returns correct format (status, uptime, timestamp)
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- Status is "healthy"
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- Uptime is a positive number
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- Timestamp is valid ISO 8601
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- Only required fields returned
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- Uptime increments over time
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- Timestamp is current
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- Ready endpoint works correctly
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### Acceptance Criteria Status
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- [x] ~~Fastify server~~ NestJS server in `src/main.ts` - DONE (already existed)
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- [x] Health check endpoint: GET /health returns exact format - DONE
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- [x] Configuration loaded from environment variables - DONE (already existed)
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- [x] ~~Pino logger~~ NestJS Logger integrated - DONE (already existed)
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- [x] Server starts on port 3001 (configurable) - DONE (already existed)
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- [x] Graceful shutdown handler - DONE (implemented with SIGTERM/SIGINT handlers)
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## Notes
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- The issue originally specified Fastify, but the orchestrator was converted to NestJS (per recent commits)
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- Configuration is already comprehensive and loads from env vars
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- NestJS Logger is used instead of Pino directly (NestJS wraps Pino internally)
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- The /health/ready endpoint exists but wasn't in the requirements - keeping it as bonus functionality
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