@varia-bly/variably-sdk/dist/cache.d.ts

Official JavaScript/TypeScript SDK for Variably feature flags, experimentation, and real-time dynamic configurations

/**
 * Cache management for Variably SDK
 */
import { CacheConfig } from './types';
import { Logger } from './logger';
export declare class CacheManager {
    private cache;
    private config;
    private logger;
    private cleanupInterval;
    constructor(config: CacheConfig, logger: Logger);
    /**
     * Get a value from cache
     */
    get<T = any>(key: string): T | null;
    /**
     * Set a value in cache
     */
    set<T = any>(key: string, value: T, customTtl?: number): void;
    /**
     * Remove a value from cache
     */
    delete(key: string): boolean;
    /**
     * Clear all cache entries
     */
    clear(): void;
    /**
     * Clear cache entries matching a pattern (supports * wildcard)
     */
    clearByPattern(pattern: string): number;
    /**
     * Get cache statistics
     */
    getStats(): {
        size: number;
        maxSize: number;
        hitRate: number;
        enabled: boolean;
    };
    /**
     * Check if cache entry has expired
     */
    private isExpired;
    /**
     * Remove oldest entries when cache is full
     */
    private evictOldest;
    /**
     * Remove expired entries from cache
     */
    private cleanup;
    /**
     * Start periodic cleanup timer
     */
    private startCleanupTimer;
    /**
     * Stop cleanup timer and clear cache
     */
    destroy(): void;
}
/**
 * Simple in-memory cache for Node.js environments
 */
export declare class MemoryCache extends CacheManager {
    constructor(config: CacheConfig, logger: Logger);
}
/**
 * Browser-compatible cache using sessionStorage/localStorage
 */
export declare class BrowserCache {
    private config;
    private logger;
    private storage;
    private keyPrefix;
    constructor(config: CacheConfig, logger: Logger, useSessionStorage?: boolean);
    get<T = any>(key: string): T | null;
    set<T = any>(key: string, value: T, customTtl?: number): void;
    delete(key: string): boolean;
    clear(): void;
    getStats(): {
        size: number;
        maxSize: number;
        hitRate: number;
        enabled: boolean;
    };
    destroy(): void;
}
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