120 lines
4.9 KiB
Markdown
120 lines
4.9 KiB
Markdown
# Project Readme Hints
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## v3.0 Transformation Progress
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### Completed Components
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**Phase 1: Foundation (100%)** - Complete
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- Error handling with typed hierarchy
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- Observability (logging, metrics, tracing)
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- Configuration management with fluent builder
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- Connection management with health checks and circuit breaker
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**Phase 2: Domain APIs (100%)** - Complete! 🎉
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- **Document API (100%)** - Complete fluent CRUD operations with sessions, iteration, snapshots
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- **Query Builder (100%)** - Type-safe query construction with aggregations
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- **Logging API (100%)** - Enterprise structured logging with:
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- Batched bulk indexing with auto-flush
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- Log enrichment pipeline (host, environment, service, sanitization)
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- Sampling strategies (all, errors-only, percentage, rate-limit)
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- ILM (Index Lifecycle Management) integration
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- Metric extraction from logs
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- Dynamic tagging based on content
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- Queue overflow protection
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- Example at `ts/examples/logging/logging-example.ts`
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- **Bulk Indexer (100%)** - High-throughput document ingestion with:
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- Fixed, adaptive, and size-based batching strategies
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- Parallel workers for concurrent processing
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- Backpressure handling with queue management
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- Dead-letter queue for failed operations
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- Progress callbacks with ETA estimation
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- Automatic retries with exponential backoff
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- Mixed operations (index, update, delete)
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- Comprehensive statistics tracking
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- Example at `ts/examples/bulk/bulk-indexer-example.ts`
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- **KV Store (100%)** - Distributed key-value storage with:
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- Time-to-live (TTL) support with automatic expiration
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- In-memory caching layer with multiple eviction policies (LRU, LFU, FIFO, TTL)
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- Batch operations (mget, mset, mdelete)
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- Scan/cursor support for large keyspaces with wildcard patterns
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- Automatic compression for large values
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- Optimistic concurrency control
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- Cache hit/miss statistics
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- Example at `ts/examples/kv/kv-store-example.ts`
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**Phase 3: Advanced Features (100%)** - Complete!
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- **Plugin Architecture (100%)** - Extensible request/response middleware:
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- Plugin lifecycle hooks (beforeRequest, afterResponse, onError)
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- Plugin priority and execution ordering
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- Plugin statistics and monitoring
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- Built-in plugins:
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- Logging plugin - automatic request/response logging
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- Metrics plugin - automatic metrics collection
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- Cache plugin - response caching for GET requests
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- Retry plugin - automatic retry with exponential backoff
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- Rate limit plugin - token bucket rate limiting
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- Custom plugin creation with factories
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- Dynamic plugin registration/unregistration
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- Shared context between plugins
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- Timeout protection for plugin hooks
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- Example at `ts/examples/plugins/plugin-example.ts`
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- **Transaction Support (100%)** - ACID-like distributed transactions:
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- Optimistic concurrency control (seq_no/primary_term)
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- Automatic rollback with compensation operations
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- Savepoints for partial rollback
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- Conflict detection and configurable resolution (retry, abort, skip, force)
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- Multi-document atomic operations
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- Isolation levels (read_uncommitted, read_committed, repeatable_read)
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- Transaction callbacks (onBegin, onCommit, onRollback, onConflict)
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- Transaction statistics and monitoring
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- Timeout with automatic cleanup
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- Example at `ts/examples/transactions/transaction-example.ts`
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- **Schema Management (100%)** - Index mapping management and migrations:
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- Index creation with mappings, settings, and aliases
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- Schema validation before apply
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- Versioned migrations with history tracking
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- Schema diff and comparison (added/removed/modified fields)
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- Breaking change detection
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- Index templates (composable and legacy)
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- Component templates
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- Alias management with filters
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- Dynamic settings updates
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- Migration rollback support
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- Dry run mode for testing
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- Example at `ts/examples/schema/schema-example.ts`
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### Query Builder Usage
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```typescript
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import { createQuery } from './ts';
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// Simple query
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const results = await createQuery<Product>('products')
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.match('name', 'laptop')
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.range('price', { gte: 100, lte: 1000 })
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.sort('price', 'asc')
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.execute();
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// With aggregations
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const stats = await createQuery<Product>('products')
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.matchAll()
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.aggregations((agg) => {
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agg.terms('brands', 'brand.keyword')
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.subAggregation('avg_price', (sub) => sub.avg('avg_price', 'price'));
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})
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.execute();
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```
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### Next Priorities (Phase 4)
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1. **Comprehensive Test Suite** - Full test coverage for all modules
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2. **Migration Guide** - Guide from v2 to v3 API
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3. **README Update** - Update main README with new v3 API documentation
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### Structure
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- Single `ts/` directory (no parallel structures)
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- Single `tsconfig.json` with strict mode enabled
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- All v3.0 code lives in `ts/` directory
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### Known Issues
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- Minor TypeScript strict mode import issues documented in `ts/QUICK_FIXES.md`
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- Need to apply `import type` fixes for verbatimModuleSyntax compliance |