easy-mongo-orm/dist/utils/cache.js

A powerful and elegant MongoDB/Mongoose toolkit that makes database operations a breeze with built-in caching, search, pagination, performance monitoring, soft delete, versioning, data export/import, schema validation, and migration utilities

"use strict";

const cache = new Map();
const CACHE_TTL = 5 * 60 * 1000; // 5 minutes
const MAX_CACHE_SIZE = 1000;
const cacheRead = async (Model, filter = {}, projection = {}, options = {}) => {
  const cacheKey = JSON.stringify({
    filter,
    projection,
    options
  });
  const cached = cache.get(cacheKey);
  if (cached && Date.now() - cached.timestamp < CACHE_TTL) {
    return cached.data;
  }
  const result = await Model.find(filter, projection, options);
  if (cache.size >= MAX_CACHE_SIZE) {
    const oldestKey = cache.keys().next().value;
    cache.delete(oldestKey);
  }
  cache.set(cacheKey, {
    data: result,
    timestamp: Date.now()
  });
  return result;
};
const clearCache = () => cache.clear();
const getCacheSize = () => cache.size;
module.exports = {
  cacheRead,
  clearCache,
  getCacheSize,
  _cache: process.env.NODE_ENV === 'test' ? cache : undefined
};