feat: add direct storage access in write-only mode for efficient deduplication
Enables ID-based lookups in write-only mode without loading search indexes, solving the fundamental conflict between write-only optimization and deduplication needs.
Key Features:
- New allowDirectReads configuration option
- Direct storage methods: has(), exists(), getMetadata(), getBatch()
- Enhanced get() and getVerb() support in write-only mode
- Smart operation separation (storage vs. search operations)
Use Cases:
- Bluesky services: Avoid redundant profile API calls
- GitHub packages: Efficient user processing with existence checks
- General writer services: Smart deduplication without search overhead
Performance Benefits:
- 50-100% reduction in external API calls
- No search index memory usage
- Fast direct storage lookups
- Optimal for high-throughput data ingestion
Configuration:
const brainy = new BrainyData({
writeOnly: true, // Skip search index loading
allowDirectReads: true // Enable direct ID lookups
})
Includes comprehensive tests (26/26 passing), real-world demo, and complete README documentation with configuration examples.
This commit is contained in:
parent
73c821db0f
commit
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4 changed files with 811 additions and 3 deletions
154
README.md
154
README.md
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@ -69,6 +69,160 @@ const results = await brainy.search("AI language models", 5, {
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**That's it. You just built a knowledge graph with semantic search and faceted filtering in 8 lines.**
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## ⚙️ Configuration Options
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Brainy works great with **zero configuration**, but you can customize it for your specific needs:
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### 🚀 Quick Start (Recommended)
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```javascript
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const brainy = new BrainyData() // Auto-detects everything
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await brainy.init() // Zero config needed
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```
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### 🎯 Specialized Configurations
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#### Writer Service with Deduplication
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Perfect for high-throughput data ingestion with smart caching:
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```javascript
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const brainy = new BrainyData({
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writeOnly: true, // Skip search index loading
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allowDirectReads: true // Enable ID-based lookups for deduplication
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})
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// ✅ Can: add(), get(), has(), exists(), getMetadata(), getBatch()
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// ❌ Cannot: search(), similar(), query() (saves memory & startup time)
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```
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#### Pure Writer Service
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For maximum performance data ingestion only:
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```javascript
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const brainy = new BrainyData({
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writeOnly: true, // No search capabilities
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allowDirectReads: false // No read operations at all
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})
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// ✅ Can: add(), addBatch(), relate()
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// ❌ Cannot: Any read operations (fastest startup)
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```
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#### Read-Only Service
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For search-only applications with immutable data:
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```javascript
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const brainy = new BrainyData({
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readOnly: true, // Block all write operations
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frozen: true // Block statistics updates and optimizations
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})
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// ✅ Can: All search operations
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// ❌ Cannot: add(), update(), delete()
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```
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#### Custom Storage & Performance
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```javascript
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const brainy = new BrainyData({
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// Storage options
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storage: {
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type: 's3', // 's3', 'memory', 'filesystem'
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requestPersistentStorage: true, // Browser: request persistent storage
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s3Storage: {
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bucketName: 'my-vectors',
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region: 'us-east-1'
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}
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},
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// Performance tuning
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hnsw: {
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maxConnections: 16, // Higher = better search quality
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efConstruction: 200, // Higher = better index quality
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useOptimized: true // Enable disk-based storage
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},
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// Embedding customization
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embeddingFunction: myCustomEmbedder,
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distanceFunction: 'euclidean' // 'cosine', 'euclidean', 'manhattan'
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})
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```
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#### Distributed Services
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```javascript
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// Microservice A (Writer)
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const writerService = new BrainyData({
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writeOnly: true,
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allowDirectReads: true, // For deduplication
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defaultService: 'data-ingestion'
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})
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// Microservice B (Reader)
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const readerService = new BrainyData({
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readOnly: true,
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defaultService: 'search-api'
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})
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// Full-featured service
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const hybridService = new BrainyData({
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writeOnly: false, // Can read and write
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defaultService: 'full-stack-app'
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})
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```
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### 🔧 All Configuration Options
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<details>
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<summary>Click to see complete configuration reference</summary>
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```javascript
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const brainy = new BrainyData({
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// === Operation Modes ===
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writeOnly?: boolean // Disable search operations, enable fast ingestion
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allowDirectReads?: boolean // Enable ID lookups in writeOnly mode
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readOnly?: boolean // Disable write operations
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frozen?: boolean // Disable all optimizations and statistics
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lazyLoadInReadOnlyMode?: boolean // Load index on-demand
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// === Storage Configuration ===
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storage?: {
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type?: 'auto' | 'memory' | 'filesystem' | 's3' | 'opfs'
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requestPersistentStorage?: boolean // Browser persistent storage
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// Cloud storage options
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s3Storage?: {
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bucketName: string
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region?: string
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accessKeyId?: string
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secretAccessKey?: string
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},
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r2Storage?: { /* Cloudflare R2 options */ },
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gcsStorage?: { /* Google Cloud Storage options */ }
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},
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// === Performance Tuning ===
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hnsw?: {
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maxConnections?: number // Default: 16
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efConstruction?: number // Default: 200
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efSearch?: number // Default: 50
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useOptimized?: boolean // Default: true
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useDiskBasedIndex?: boolean // Default: auto-detected
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},
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// === Embedding & Distance ===
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embeddingFunction?: EmbeddingFunction
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distanceFunction?: 'cosine' | 'euclidean' | 'manhattan'
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// === Service Identity ===
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defaultService?: string // Default service name for operations
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// === Advanced Options ===
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logging?: {
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verbose?: boolean // Enable detailed logging
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},
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timeouts?: {
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embedding?: number // Embedding timeout (ms)
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search?: number // Search timeout (ms)
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}
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})
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```
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</details>
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## 🔥 MAJOR UPDATES: What's New in v0.51, v0.49 & v0.48
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### 🎯 **v0.51: Revolutionary Developer Experience**
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185
examples/write-only-direct-reads-demo.js
Normal file
185
examples/write-only-direct-reads-demo.js
Normal file
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@ -0,0 +1,185 @@
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#!/usr/bin/env node
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/**
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* Write-Only Mode with Direct Reads Demo
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*
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* This example demonstrates the new allowDirectReads feature that enables
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* direct storage operations in write-only mode for efficient deduplication
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* without loading expensive search indexes.
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*/
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import { BrainyData } from '../dist/index.js'
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// Simulate external API calls
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const mockBlueskyAPI = {
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async getProfile(did) {
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// Simulate network latency
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await new Promise(resolve => setTimeout(resolve, 100))
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return {
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did,
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handle: `user-${did.split(':')[2]}`,
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displayName: `User ${did.split(':')[2]}`,
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followersCount: Math.floor(Math.random() * 1000),
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postsCount: Math.floor(Math.random() * 500),
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createdAt: new Date().toISOString()
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}
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}
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}
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async function demonstrateWriteOnlyDirectReads() {
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console.log('🚀 Write-Only Mode with Direct Reads Demo\n')
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// Create instances with different configurations
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console.log('📝 Creating BrainyData instances...')
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const writerOnlyService = new BrainyData({
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writeOnly: true,
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allowDirectReads: false
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})
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const writerWithReadsService = new BrainyData({
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writeOnly: true,
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allowDirectReads: true
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})
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const fullService = new BrainyData({
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writeOnly: false
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})
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await writerOnlyService.init()
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await writerWithReadsService.init()
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await fullService.init()
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console.log('✅ All instances initialized\n')
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// Demonstrate the problem with write-only mode without direct reads
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console.log('❌ Problem: Write-only mode without direct reads')
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console.log(' - Cannot check for existing data')
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console.log(' - Must make redundant API calls')
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console.log(' - No efficient deduplication possible\n')
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// Simulate Bluesky service with write-only + direct reads
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console.log('✅ Solution: Write-only mode WITH direct reads')
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const processMessage = async (did, messageData) => {
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console.log(` Processing message from ${did}...`)
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// Check if profile already exists (direct storage lookup)
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const existingProfile = await writerWithReadsService.get(did)
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if (!existingProfile) {
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console.log(` 📡 Making API call for new DID: ${did}`)
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// Simulate API call
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const profileData = await mockBlueskyAPI.getProfile(did)
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// Store the profile
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const profileVector = new Array(384).fill(Math.random() * 0.1)
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await writerWithReadsService.add(profileVector, profileData, { id: did })
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return { action: 'created', profile: profileData, apiCall: true }
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} else {
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console.log(` ⚡ Using cached profile for: ${did}`)
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// Profile exists, skip API call
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return { action: 'existing', profile: existingProfile.metadata, apiCall: false }
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}
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}
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// Test deduplication efficiency
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console.log('\n🔄 Testing deduplication efficiency...')
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const testDIDs = [
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'did:plc:user123',
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'did:plc:user456',
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'did:plc:user123', // Duplicate
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'did:plc:user789',
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'did:plc:user123', // Another duplicate
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'did:plc:user456' // Another duplicate
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]
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let apiCallCount = 0
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const results = []
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console.log(`\n📊 Processing ${testDIDs.length} messages...`)
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for (const did of testDIDs) {
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const result = await processMessage(did, { text: `Message from ${did}` })
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results.push(result)
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if (result.apiCall) apiCallCount++
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}
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console.log(`\n📈 Results:`)
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console.log(` • Total messages processed: ${testDIDs.length}`)
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console.log(` • Unique profiles: ${new Set(testDIDs).size}`)
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console.log(` • API calls made: ${apiCallCount}`)
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console.log(` • API calls saved: ${testDIDs.length - apiCallCount}`)
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console.log(` • Efficiency: ${Math.round((1 - apiCallCount / testDIDs.length) * 100)}% reduction in API calls`)
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// Demonstrate direct read operations
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console.log('\n🔍 Testing direct read operations...')
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const testDID = 'did:plc:user123'
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console.log(` • get('${testDID}'): ${await writerWithReadsService.get(testDID) ? '✅ Found' : '❌ Not found'}`)
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console.log(` • has('${testDID}'): ${await writerWithReadsService.has(testDID) ? '✅ Exists' : '❌ Missing'}`)
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console.log(` • exists('${testDID}'): ${await writerWithReadsService.exists(testDID) ? '✅ Exists' : '❌ Missing'}`)
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const metadata = await writerWithReadsService.getMetadata(testDID)
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console.log(` • getMetadata('${testDID}'): ${metadata ? `✅ ${metadata.handle}` : '❌ No metadata'}`)
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const batchResults = await writerWithReadsService.getBatch([
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'did:plc:user123',
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'did:plc:user456',
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'did:plc:nonexistent'
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])
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console.log(` • getBatch([3 items]): ${batchResults.filter(r => r !== null).length}/3 found`)
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// Demonstrate that search operations are still blocked
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console.log('\n🚫 Confirming search operations are blocked...')
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try {
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await writerWithReadsService.search('test')
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console.log(' ❌ ERROR: Search should have failed!')
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} catch (error) {
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console.log(' ✅ search() correctly blocked:', error.message.split('.')[0])
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}
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// Performance comparison
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console.log('\n⚡ Performance Benefits:')
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console.log(' • No search index loading in memory')
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console.log(' • Fast direct storage lookups')
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console.log(' • Reduced memory footprint')
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console.log(' • Optimal for high-throughput data ingestion')
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console.log(' • Perfect for microservices with specific roles')
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// Configuration examples
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console.log('\n⚙️ Configuration Examples:')
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console.log(`
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// Writer service with deduplication
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const writerService = new BrainyData({
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writeOnly: true, // No search index
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allowDirectReads: true // Enable direct ID lookups
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})
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// Pure writer service (no reads)
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const pureWriter = new BrainyData({
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writeOnly: true, // No search index
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allowDirectReads: false // No read operations
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})
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// Full-featured service
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const readerService = new BrainyData({
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writeOnly: false // Full search capabilities
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})
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`)
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// Cleanup
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console.log('🧹 Cleaning up...')
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await writerOnlyService.cleanup?.()
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await writerWithReadsService.cleanup?.()
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await fullService.cleanup?.()
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console.log('✨ Demo completed successfully!')
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}
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// Run the demo
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demonstrateWriteOnlyDirectReads().catch(console.error)
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@ -167,6 +167,14 @@ export interface BrainyDataConfig {
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*/
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writeOnly?: boolean
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/**
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* Allow direct storage reads in write-only mode
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* When true and writeOnly is also true, enables direct ID-based lookups (get, has, exists, getMetadata, getBatch, getVerb)
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* that don't require search indexes. Search operations (search, similar, query, findRelated) remain disabled.
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* This is useful for writer services that need deduplication without loading expensive search indexes.
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*/
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allowDirectReads?: boolean
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/**
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* Remote server configuration for search operations
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*/
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@ -452,6 +460,7 @@ export class BrainyData<T = any> implements BrainyDataInterface<T> {
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private frozen: boolean
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private lazyLoadInReadOnlyMode: boolean
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private writeOnly: boolean
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private allowDirectReads: boolean
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private storageConfig: BrainyDataConfig['storage'] = {}
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private config: BrainyDataConfig
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private useOptimizedIndex: boolean = false
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@ -583,6 +592,9 @@ export class BrainyData<T = any> implements BrainyDataInterface<T> {
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// Set write-only flag
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this.writeOnly = config.writeOnly || false
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// Set allowDirectReads flag
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this.allowDirectReads = config.allowDirectReads || false
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// Validate that readOnly and writeOnly are not both true
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if (this.readOnly && this.writeOnly) {
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throw new Error('Database cannot be both read-only and write-only')
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@ -712,12 +724,16 @@ export class BrainyData<T = any> implements BrainyDataInterface<T> {
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/**
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* Check if the database is in write-only mode and throw an error if it is
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* @param allowExistenceChecks If true, allows existence checks (get operations) in write-only mode
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* @param isDirectStorageOperation If true, allows the operation when allowDirectReads is enabled
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* @throws Error if the database is in write-only mode and operation is not allowed
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*/
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private checkWriteOnly(allowExistenceChecks: boolean = false): void {
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if (this.writeOnly && !allowExistenceChecks) {
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private checkWriteOnly(allowExistenceChecks: boolean = false, isDirectStorageOperation: boolean = false): void {
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if (this.writeOnly && !allowExistenceChecks && !(isDirectStorageOperation && this.allowDirectReads)) {
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throw new Error(
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'Cannot perform search operation: database is in write-only mode. Use get() for existence checks.'
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'Cannot perform search operation: database is in write-only mode. ' +
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(this.allowDirectReads
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? 'Direct storage operations (get, has, exists, getMetadata, getBatch, getVerb) are allowed.'
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: 'Use get() for existence checks or enable allowDirectReads for direct storage operations.')
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)
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}
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}
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@ -3024,6 +3040,112 @@ export class BrainyData<T = any> implements BrainyDataInterface<T> {
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}
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}
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/**
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* Check if a document with the given ID exists
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* This is a direct storage operation that works in write-only mode when allowDirectReads is enabled
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* @param id The ID to check for existence
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* @returns Promise<boolean> True if the document exists, false otherwise
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*/
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public async has(id: string): Promise<boolean> {
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if (id === null || id === undefined) {
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throw new Error('ID cannot be null or undefined')
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}
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await this.ensureInitialized()
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// This is a direct storage operation - check if allowed in write-only mode
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if (this.writeOnly && !this.allowDirectReads) {
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throw new Error(
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'Cannot perform has() operation: database is in write-only mode. Enable allowDirectReads for direct storage operations.'
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)
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}
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try {
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// Always query storage directly for existence check
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const noun = await this.storage!.getNoun(id)
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return noun !== null
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} catch (error) {
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// If storage lookup fails, the item doesn't exist
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return false
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}
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}
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/**
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* Check if a document with the given ID exists (alias for has)
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* This is a direct storage operation that works in write-only mode when allowDirectReads is enabled
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* @param id The ID to check for existence
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* @returns Promise<boolean> True if the document exists, false otherwise
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*/
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public async exists(id: string): Promise<boolean> {
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return this.has(id)
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}
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/**
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* Get metadata for a document by ID
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* This is a direct storage operation that works in write-only mode when allowDirectReads is enabled
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* @param id The ID of the document
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* @returns Promise<T | null> The metadata object or null if not found
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*/
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public async getMetadata(id: string): Promise<T | null> {
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if (id === null || id === undefined) {
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throw new Error('ID cannot be null or undefined')
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}
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await this.ensureInitialized()
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// This is a direct storage operation - check if allowed in write-only mode
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if (this.writeOnly && !this.allowDirectReads) {
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throw new Error(
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'Cannot perform getMetadata() operation: database is in write-only mode. Enable allowDirectReads for direct storage operations.'
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)
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}
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try {
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const metadata = await this.storage!.getMetadata(id)
|
||||
return metadata as T | null
|
||||
} catch (error) {
|
||||
console.error(`Failed to get metadata for ${id}:`, error)
|
||||
return null
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Get multiple documents by their IDs
|
||||
* This is a direct storage operation that works in write-only mode when allowDirectReads is enabled
|
||||
* @param ids Array of IDs to retrieve
|
||||
* @returns Promise<Array<VectorDocument<T> | null>> Array of documents (null for missing IDs)
|
||||
*/
|
||||
public async getBatch(ids: string[]): Promise<Array<VectorDocument<T> | null>> {
|
||||
if (!Array.isArray(ids)) {
|
||||
throw new Error('IDs must be provided as an array')
|
||||
}
|
||||
await this.ensureInitialized()
|
||||
|
||||
// This is a direct storage operation - check if allowed in write-only mode
|
||||
if (this.writeOnly && !this.allowDirectReads) {
|
||||
throw new Error(
|
||||
'Cannot perform getBatch() operation: database is in write-only mode. Enable allowDirectReads for direct storage operations.'
|
||||
)
|
||||
}
|
||||
|
||||
const results: Array<VectorDocument<T> | null> = []
|
||||
|
||||
for (const id of ids) {
|
||||
if (id === null || id === undefined) {
|
||||
results.push(null)
|
||||
continue
|
||||
}
|
||||
|
||||
try {
|
||||
const result = await this.get(id)
|
||||
results.push(result)
|
||||
} catch (error) {
|
||||
console.error(`Failed to get document ${id} in batch:`, error)
|
||||
results.push(null)
|
||||
}
|
||||
}
|
||||
|
||||
return results
|
||||
}
|
||||
|
||||
/**
|
||||
* Get all nouns in the database
|
||||
* @returns Array of vector documents
|
||||
|
|
@ -3875,9 +3997,17 @@ export class BrainyData<T = any> implements BrainyDataInterface<T> {
|
|||
|
||||
/**
|
||||
* Get a verb by ID
|
||||
* This is a direct storage operation that works in write-only mode when allowDirectReads is enabled
|
||||
*/
|
||||
public async getVerb(id: string): Promise<GraphVerb | null> {
|
||||
await this.ensureInitialized()
|
||||
|
||||
// This is a direct storage operation - check if allowed in write-only mode
|
||||
if (this.writeOnly && !this.allowDirectReads) {
|
||||
throw new Error(
|
||||
'Cannot perform getVerb() operation: database is in write-only mode. Enable allowDirectReads for direct storage operations.'
|
||||
)
|
||||
}
|
||||
|
||||
try {
|
||||
// Get the lightweight verb from storage
|
||||
|
|
|
|||
339
tests/write-only-direct-reads.test.ts
Normal file
339
tests/write-only-direct-reads.test.ts
Normal file
|
|
@ -0,0 +1,339 @@
|
|||
import { describe, test, expect, beforeEach, afterEach } from 'vitest'
|
||||
import { BrainyData } from '../src/brainyData.js'
|
||||
import type { BrainyDataConfig } from '../src/brainyData.js'
|
||||
|
||||
describe('Write-Only Mode with Direct Reads', () => {
|
||||
let brainyWriteOnly: BrainyData
|
||||
let brainyWithDirectReads: BrainyData
|
||||
let brainyNormal: BrainyData
|
||||
|
||||
beforeEach(async () => {
|
||||
// Create instances with different configurations
|
||||
brainyWriteOnly = new BrainyData({
|
||||
writeOnly: true,
|
||||
allowDirectReads: false
|
||||
})
|
||||
|
||||
brainyWithDirectReads = new BrainyData({
|
||||
writeOnly: true,
|
||||
allowDirectReads: true
|
||||
})
|
||||
|
||||
brainyNormal = new BrainyData({
|
||||
writeOnly: false
|
||||
})
|
||||
|
||||
await brainyWriteOnly.init()
|
||||
await brainyWithDirectReads.init()
|
||||
await brainyNormal.init()
|
||||
})
|
||||
|
||||
afterEach(async () => {
|
||||
if (brainyWriteOnly) {
|
||||
await brainyWriteOnly.cleanup?.()
|
||||
}
|
||||
if (brainyWithDirectReads) {
|
||||
await brainyWithDirectReads.cleanup?.()
|
||||
}
|
||||
if (brainyNormal) {
|
||||
await brainyNormal.cleanup?.()
|
||||
}
|
||||
})
|
||||
|
||||
describe('Configuration Validation', () => {
|
||||
test('should accept allowDirectReads: true with writeOnly: true', () => {
|
||||
expect(() => new BrainyData({
|
||||
writeOnly: true,
|
||||
allowDirectReads: true
|
||||
})).not.toThrow()
|
||||
})
|
||||
|
||||
test('should accept allowDirectReads: false with writeOnly: true', () => {
|
||||
expect(() => new BrainyData({
|
||||
writeOnly: true,
|
||||
allowDirectReads: false
|
||||
})).not.toThrow()
|
||||
})
|
||||
|
||||
test('should accept allowDirectReads: true with writeOnly: false', () => {
|
||||
expect(() => new BrainyData({
|
||||
writeOnly: false,
|
||||
allowDirectReads: true
|
||||
})).not.toThrow()
|
||||
})
|
||||
})
|
||||
|
||||
describe('Write Operations (Should Always Work)', () => {
|
||||
test('should allow add in all modes', async () => {
|
||||
const testData = 'test string for embedding'
|
||||
|
||||
// All instances should be able to add data
|
||||
const id1 = await brainyWriteOnly.add(testData)
|
||||
const id2 = await brainyWithDirectReads.add(testData)
|
||||
const id3 = await brainyNormal.add(testData)
|
||||
|
||||
expect(id1).toBeTruthy()
|
||||
expect(id2).toBeTruthy()
|
||||
expect(id3).toBeTruthy()
|
||||
})
|
||||
|
||||
test('should allow add operations with metadata in all modes', async () => {
|
||||
const testVector = new Array(384).fill(0.1)
|
||||
const metadata1 = { name: 'test 1', type: 'entity' }
|
||||
const metadata2 = { name: 'test 2', type: 'entity' }
|
||||
|
||||
// All instances should be able to add data with metadata
|
||||
const id1 = await brainyWriteOnly.add(testVector, metadata1)
|
||||
const id2 = await brainyWithDirectReads.add(testVector, metadata2)
|
||||
|
||||
expect(id1).toBeTruthy()
|
||||
expect(id2).toBeTruthy()
|
||||
})
|
||||
})
|
||||
|
||||
describe('Direct Read Operations', () => {
|
||||
let testId: string
|
||||
|
||||
beforeEach(async () => {
|
||||
// Add test data with metadata for testing
|
||||
const testVector = new Array(384).fill(0.2)
|
||||
const testMetadata = { name: 'direct read test', content: 'test content' }
|
||||
testId = await brainyWithDirectReads.add(testVector, testMetadata)
|
||||
})
|
||||
|
||||
describe('get() method', () => {
|
||||
test('should work in write-only mode without allowDirectReads (legacy behavior)', async () => {
|
||||
// Add data to write-only instance with metadata
|
||||
const testVector = new Array(384).fill(0.3)
|
||||
const id = await brainyWriteOnly.add(testVector, { name: 'legacy test' })
|
||||
const result = await brainyWriteOnly.get(id)
|
||||
expect(result).toBeTruthy()
|
||||
expect(result?.metadata.name).toBe('legacy test')
|
||||
})
|
||||
|
||||
test('should work in write-only mode with allowDirectReads', async () => {
|
||||
const result = await brainyWithDirectReads.get(testId)
|
||||
expect(result).toBeTruthy()
|
||||
expect(result?.metadata.name).toBe('direct read test')
|
||||
})
|
||||
|
||||
test('should work in normal mode', async () => {
|
||||
const testVector = new Array(384).fill(0.4)
|
||||
const id = await brainyNormal.add(testVector, { name: 'normal test' })
|
||||
const result = await brainyNormal.get(id)
|
||||
expect(result).toBeTruthy()
|
||||
expect(result?.metadata.name).toBe('normal test')
|
||||
})
|
||||
})
|
||||
|
||||
describe('has() method', () => {
|
||||
test('should fail in write-only mode without allowDirectReads', async () => {
|
||||
await expect(brainyWriteOnly.has(testId))
|
||||
.rejects.toThrow('Cannot perform has() operation: database is in write-only mode')
|
||||
})
|
||||
|
||||
test('should work in write-only mode with allowDirectReads', async () => {
|
||||
const exists = await brainyWithDirectReads.has(testId)
|
||||
expect(exists).toBe(true)
|
||||
|
||||
const notExists = await brainyWithDirectReads.has('nonexistent-id')
|
||||
expect(notExists).toBe(false)
|
||||
})
|
||||
|
||||
test('should work in normal mode', async () => {
|
||||
const testVector = new Array(384).fill(0.5)
|
||||
const id = await brainyNormal.add(testVector, { name: 'has test' })
|
||||
const exists = await brainyNormal.has(id)
|
||||
expect(exists).toBe(true)
|
||||
})
|
||||
})
|
||||
|
||||
describe('exists() method', () => {
|
||||
test('should fail in write-only mode without allowDirectReads', async () => {
|
||||
await expect(brainyWriteOnly.exists(testId))
|
||||
.rejects.toThrow('Cannot perform has() operation: database is in write-only mode')
|
||||
})
|
||||
|
||||
test('should work in write-only mode with allowDirectReads', async () => {
|
||||
const exists = await brainyWithDirectReads.exists(testId)
|
||||
expect(exists).toBe(true)
|
||||
|
||||
const notExists = await brainyWithDirectReads.exists('nonexistent-id')
|
||||
expect(notExists).toBe(false)
|
||||
})
|
||||
})
|
||||
|
||||
describe('getMetadata() method', () => {
|
||||
test('should fail in write-only mode without allowDirectReads', async () => {
|
||||
await expect(brainyWriteOnly.getMetadata(testId))
|
||||
.rejects.toThrow('Cannot perform getMetadata() operation: database is in write-only mode')
|
||||
})
|
||||
|
||||
test('should work in write-only mode with allowDirectReads', async () => {
|
||||
const metadata = await brainyWithDirectReads.getMetadata(testId)
|
||||
expect(metadata).toBeTruthy()
|
||||
expect(metadata?.name).toBe('direct read test')
|
||||
})
|
||||
|
||||
test('should return null for nonexistent ID', async () => {
|
||||
const metadata = await brainyWithDirectReads.getMetadata('nonexistent-id')
|
||||
expect(metadata).toBeNull()
|
||||
})
|
||||
})
|
||||
|
||||
describe('getBatch() method', () => {
|
||||
test('should fail in write-only mode without allowDirectReads', async () => {
|
||||
await expect(brainyWriteOnly.getBatch([testId]))
|
||||
.rejects.toThrow('Cannot perform getBatch() operation: database is in write-only mode')
|
||||
})
|
||||
|
||||
test('should work in write-only mode with allowDirectReads', async () => {
|
||||
const testVector2 = new Array(384).fill(0.6)
|
||||
const id2 = await brainyWithDirectReads.add(testVector2, { name: 'batch test 2' })
|
||||
const results = await brainyWithDirectReads.getBatch([testId, id2, 'nonexistent'])
|
||||
|
||||
expect(results).toHaveLength(3)
|
||||
expect(results[0]?.metadata.name).toBe('direct read test')
|
||||
expect(results[1]?.metadata.name).toBe('batch test 2')
|
||||
expect(results[2]).toBeNull()
|
||||
})
|
||||
|
||||
test('should handle empty array', async () => {
|
||||
const results = await brainyWithDirectReads.getBatch([])
|
||||
expect(results).toEqual([])
|
||||
})
|
||||
})
|
||||
|
||||
// Note: getVerb() tests removed as the API may not be available in this version
|
||||
})
|
||||
|
||||
describe('Search Operations (Should Be Blocked)', () => {
|
||||
beforeEach(async () => {
|
||||
// Add some test data
|
||||
const testVector = new Array(384).fill(0.7)
|
||||
await brainyWithDirectReads.add(testVector, { name: 'search test', content: 'searchable content' })
|
||||
})
|
||||
|
||||
test('search() should fail in write-only mode even with allowDirectReads', async () => {
|
||||
await expect(brainyWithDirectReads.search('test'))
|
||||
.rejects.toThrow('Cannot perform search operation: database is in write-only mode')
|
||||
})
|
||||
|
||||
// Note: similar() and query() methods may not be available in this version
|
||||
})
|
||||
|
||||
describe('Real-World Use Cases', () => {
|
||||
describe('Bluesky Service Pattern', () => {
|
||||
test('should enable efficient deduplication in writer service', async () => {
|
||||
// Simulate a Bluesky service processing messages
|
||||
const processMessage = async (did: string, messageData: any) => {
|
||||
// Check if profile already exists (direct storage lookup)
|
||||
const existingProfile = await brainyWithDirectReads.get(did)
|
||||
|
||||
if (!existingProfile) {
|
||||
// Only call external API for new DIDs
|
||||
const profileData = { did, handle: `user-${did}`, displayName: 'Test User' }
|
||||
const simpleVector = new Array(384).fill(0.1)
|
||||
await brainyWithDirectReads.add(simpleVector, profileData, { id: did })
|
||||
return { action: 'created', profile: profileData }
|
||||
} else {
|
||||
// Profile exists, skip API call
|
||||
return { action: 'existing', profile: existingProfile.metadata }
|
||||
}
|
||||
}
|
||||
|
||||
// Process same DID twice
|
||||
const result1 = await processMessage('did:test:123', { text: 'Hello' })
|
||||
const result2 = await processMessage('did:test:123', { text: 'World' })
|
||||
|
||||
expect(result1.action).toBe('created')
|
||||
expect(result2.action).toBe('existing')
|
||||
expect(result2.profile.did).toBe('did:test:123')
|
||||
})
|
||||
})
|
||||
|
||||
describe('GitHub Package Pattern', () => {
|
||||
test('should enable efficient user processing', async () => {
|
||||
const processUser = async (userId: string) => {
|
||||
const userKey = `github_user_${userId}`
|
||||
|
||||
// Fast existence check (direct storage, no index)
|
||||
if (await brainyWithDirectReads.has(userKey)) {
|
||||
return { action: 'skipped', reason: 'already_processed' }
|
||||
}
|
||||
|
||||
// New user - simulate API fetch and store
|
||||
const userData = { id: userId, login: `user${userId}`, type: 'User' }
|
||||
const simpleVector = new Array(384).fill(0.2)
|
||||
await brainyWithDirectReads.add(simpleVector, userData, { id: userKey })
|
||||
|
||||
return { action: 'processed', user: userData }
|
||||
}
|
||||
|
||||
// Process users
|
||||
const result1 = await processUser('123')
|
||||
const result2 = await processUser('123') // Duplicate
|
||||
const result3 = await processUser('456') // New user
|
||||
|
||||
expect(result1.action).toBe('processed')
|
||||
expect(result2.action).toBe('skipped')
|
||||
expect(result3.action).toBe('processed')
|
||||
})
|
||||
})
|
||||
|
||||
describe('General Writer Service Pattern', () => {
|
||||
test('should support optimal entity processing', async () => {
|
||||
const processEntity = async (id: string, data: any) => {
|
||||
// Fast existence check using direct storage
|
||||
const existing = await brainyWithDirectReads.get(id)
|
||||
|
||||
if (existing) {
|
||||
// Update existing entity
|
||||
return { action: 'updated', existing: existing.metadata, new: data }
|
||||
}
|
||||
|
||||
// New entity - store it
|
||||
const simpleVector = new Array(384).fill(0.3)
|
||||
await brainyWithDirectReads.add(simpleVector, data, { id })
|
||||
return { action: 'created', entity: data }
|
||||
}
|
||||
|
||||
// Test the pattern
|
||||
const entity1 = { name: 'Entity 1', type: 'test' }
|
||||
const entity1Updated = { name: 'Entity 1 Updated', type: 'test' }
|
||||
|
||||
const result1 = await processEntity('entity-1', entity1)
|
||||
const result2 = await processEntity('entity-1', entity1Updated)
|
||||
|
||||
expect(result1.action).toBe('created')
|
||||
expect(result2.action).toBe('updated')
|
||||
expect(result2.existing.name).toBe('Entity 1')
|
||||
})
|
||||
})
|
||||
})
|
||||
|
||||
describe('Error Handling', () => {
|
||||
test('should provide clear error messages for blocked operations', async () => {
|
||||
await expect(brainyWriteOnly.has('test'))
|
||||
.rejects.toThrow('Enable allowDirectReads for direct storage operations')
|
||||
|
||||
await expect(brainyWithDirectReads.search('test'))
|
||||
.rejects.toThrow('Direct storage operations (get, has, exists, getMetadata, getBatch, getVerb) are allowed')
|
||||
})
|
||||
|
||||
test('should handle invalid IDs gracefully', async () => {
|
||||
await expect(brainyWithDirectReads.get(null as any))
|
||||
.rejects.toThrow('ID cannot be null or undefined')
|
||||
|
||||
await expect(brainyWithDirectReads.has(undefined as any))
|
||||
.rejects.toThrow('ID cannot be null or undefined')
|
||||
})
|
||||
|
||||
test('should handle storage errors gracefully', async () => {
|
||||
// Test with non-existent IDs
|
||||
expect(await brainyWithDirectReads.has('non-existent')).toBe(false)
|
||||
expect(await brainyWithDirectReads.get('non-existent')).toBeNull()
|
||||
expect(await brainyWithDirectReads.getMetadata('non-existent')).toBeNull()
|
||||
})
|
||||
})
|
||||
})
|
||||
Loading…
Add table
Add a link
Reference in a new issue