GitHub Repos Manager MCP Server

// src/services/cache-service.cjs // This service will implement caching logic for popular analytics data // to avoid hitting GitHub API rate limits and improve response times. const NodeCache = require("node-cache"); // Initialize cache with a standard TTL (e.g., 1 hour) // and checkperiod (e.g., 10 minutes) const DEFAULT_TTL = 3600; // 1 hour in seconds const CHECK_PERIOD = 600; // 10 minutes in seconds const analyticsCache = new NodeCache({ stdTTL: DEFAULT_TTL, checkperiod: CHECK_PERIOD, }); /** * Retrieves data from cache. * @param {string} key - The cache key. * @returns {*} The cached data, or undefined if not found or expired. */ function getFromCache(key) { const value = analyticsCache.get(key); if (value) { // Debug logging disabled to avoid JSON parsing issues in MCP clients // console.log(`Cache HIT for key: ${key}`); return value; } // console.log(`Cache MISS for key: ${key}`); return undefined; } /** * Stores data in cache. * @param {string} key - The cache key. * @param {*} value - The data to cache. * @param {number} [ttl=DEFAULT_TTL] - Optional TTL for this specific key in seconds. * @returns {boolean} True if the data was cached successfully. */ function setToCache(key, value, ttl = DEFAULT_TTL) { // Debug logging disabled to avoid JSON parsing issues in MCP clients // console.log(`Setting cache for key: ${key} with TTL: ${ttl}s`); return analyticsCache.set(key, value, ttl); } /** * Deletes data from cache. * @param {string} key - The cache key. */ function deleteFromCache(key) { // Debug logging disabled to avoid JSON parsing issues in MCP clients // console.log(`Deleting cache for key: ${key}`); analyticsCache.del(key); } /** * Flushes all data from cache. */ function flushAllCache() { // Debug logging disabled to avoid JSON parsing issues in MCP clients // console.log("Flushing all analytics cache"); analyticsCache.flushAll(); } /** * Generates a cache key for repository-specific data. * @param {string} owner - The repository owner. * @param {string} repo - The repository name. * @param {string} dataType - The type of data (e.g., 'traffic', 'languages'). * @returns {string} The generated cache key. */ function generateRepoCacheKey(owner, repo, dataType) { return `repo:${owner}:${repo}:${dataType}`; } module.exports = { getFromCache, setToCache, deleteFromCache, flushAllCache, generateRepoCacheKey, analyticsCache, // Exporting the instance directly for more advanced use if needed };