Cache Center

A Node.js library for managing cache operations, providing a set of functions for handling cached data.

Installation

npm install cache-center

Initialization

First, create a .env file in your project root with the following variables:

REDIS_HOST=localhost        # Server host
REDIS_PORT=6379            # Server port
REDIS_PASSWORD=            # Password (optional)

Then, initialize the Redis client in your application:

import { initRedisClient } from 'cache-center';

// Initialize Redis client
initRedisClient({
  host: process.env.REDIS_HOST || 'localhost',
  port: parseInt(process.env.REDIS_PORT || '6379', 10),
  password: process.env.REDIS_PASSWORD,
  connectTimeout: 10000 // optional, defaults to 10000ms
});

Available Functions

Products

// Store a product in cache
// id: Product identifier
// value: Product data
// ttlInSec: Time to live in seconds (optional)
await setProduct(id: string, value: any, ttlInSec?: number)

// Retrieve a product from cache
// id: Product identifier
// return: Product data or null if not found
await getProduct(id: string)

// Delete a product from cache
// id: Product identifier
await deleteProduct(id: string)

Categories

// Store a category in cache
// id: Category identifier
// value: Category data
// ttlInSec: Time to live in seconds (optional)
await setCategory(id: string, value: any, ttlInSec?: number)

// Retrieve a category from cache
// id: Category identifier
// return: Category data or null if not found
await getCategory(id: string)

// Delete a category from cache
// id: Category identifier
await deleteCategory(id: string)

Users

// Store a user in cache
// id: User identifier
// value: User data
// ttlInSec: Time to live in seconds (optional)
await setUser(id: string, value: any, ttlInSec?: number)

// Retrieve a user from cache
// id: User identifier
// return: User data or null if not found
await getUser(id: string)

// Delete a user from cache
// id: User identifier
await deleteUser(id: string)

Usage Examples

import { setProduct, getProduct, deleteProduct } from 'cache-center';

// Store a product with 1-hour expiration
await setProduct('123', { name: 'Product 1', price: 100 }, 3600);

// Retrieve product data
const product = await getProduct('123');

// Delete the product
await deleteProduct('123');

Error Handling

The library automatically handles Redis connection errors and provides console logging for:

• Successful connection
• Connection errors
• Connection timeouts
• Client initialization status

License

ISC