cache-manager-js

cache-manager-js

A caching library for managing asynchronous function results with TTL and eviction strategies.

Installation

You can install the package using npm:

npm install cache-manager-js

Usage

import { AsyncCacheManager } from "scache-manager-js";

const cache = new AsyncCacheManager();

const callCount: any[] = [];

async function fetchDataFromAPI(id: string): Promise<any> {
  console.log(
    `async function called. ID: ${id} Count: ${callCount.length + 1}`
  );
  const result = Math.random();
  callCount.push(result);
  return result;
}

const cachedFetchData = cache.wrap(fetchDataFromAPI);

// The first call triggers the actual async operation
const data1 = await cachedFetchData("123");

// Subsequent calls return cached results without re-executing the async operation
const data2 = await cachedFetchData("123");

const data3 = await cachedFetchData("666");

if (data1 === data2) {
  console.log("data1 equals data2");
  // data1 equals data2
}

Promising Field

Asynchronous programming is increasingly prevalent in modern JavaScript and TypeScript applications. Creating a sophisticated caching manager for asynchronous operations addresses a common performance optimization challenge. This package could be particularly useful in scenarios where repeated asynchronous calls with similar parameters occur.

License

This project is licensed under the MIT License - see the LICENSE file for details.