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
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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)
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return metadata as T | null
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} catch (error) {
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console.error(`Failed to get metadata for ${id}:`, error)
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return null
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}
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}
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/**
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* Get multiple documents by their IDs
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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 ids Array of IDs to retrieve
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* @returns Promise<Array<VectorDocument<T> | null>> Array of documents (null for missing IDs)
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*/
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public async getBatch(ids: string[]): Promise<Array<VectorDocument<T> | null>> {
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if (!Array.isArray(ids)) {
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throw new Error('IDs must be provided as an array')
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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 getBatch() 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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const results: Array<VectorDocument<T> | null> = []
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for (const id of ids) {
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if (id === null || id === undefined) {
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results.push(null)
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continue
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}
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try {
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const result = await this.get(id)
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results.push(result)
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} catch (error) {
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console.error(`Failed to get document ${id} in batch:`, error)
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results.push(null)
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}
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}
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return results
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}
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/**
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* Get all nouns in the database
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* @returns Array of vector documents
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@ -3875,9 +3997,17 @@ export class BrainyData<T = any> implements BrainyDataInterface<T> {
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/**
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* Get a verb 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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*/
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public async getVerb(id: string): Promise<GraphVerb | null> {
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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 getVerb() 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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// Get the lightweight verb from storage
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