@smartbear/mcp/dist/common/cache.js

MCP server for interacting SmartBear Products

import NodeCache from "node-cache";
/**
 * Common cache service that can be shared across all clients.
 * Wraps NodeCache and provides a way to disable caching entirely.
 * Reads CACHE_ENABLED and CACHE_TTL environment variables for configuration.
 */
export class CacheService {
    cache;
    enabled;
    constructor() {
        // Read configuration from environment variables
        this.enabled = process.env.CACHE_ENABLED !== "false";
        const ttl = process.env.CACHE_TTL
            ? Number.parseInt(process.env.CACHE_TTL, 10)
            : 86400; // Default 24 hours
        this.cache = this.enabled
            ? new NodeCache({
                stdTTL: ttl,
            })
            : null;
    }
    /**
     * Get a value from the cache
     */
    get(key) {
        if (!this.enabled || !this.cache) {
            return undefined;
        }
        return this.cache.get(key);
    }
    /**
     * Set a value in the cache
     */
    set(key, value) {
        if (!this.enabled || !this.cache) {
            return false;
        }
        return this.cache.set(key, value);
    }
    /**
     * Delete a value from the cache
     */
    del(key) {
        if (!this.enabled || !this.cache) {
            return 0;
        }
        return this.cache.del(key);
    }
    /**
     * Check if caching is enabled
     */
    isEnabled() {
        return this.enabled;
    }
    /**
     * Clear all cache entries
     */
    flushAll() {
        if (this.enabled && this.cache) {
            this.cache.flushAll();
        }
    }
}