lambda-cache

A simple, fast, cheap, lightweight dependency-less and cross execution cache system for AWS Lambda functions, based on writing to files in the "/tmp" folder. It allows you to set a time-to-live (TTL) for cache keys and invalidate the cache.

Installation

You can install the package via npm:
``bash
npm install @j-mori/lambda-cache
`

Usage

`typescript
import { Cache } from 'lambda-cache';

// Create a new cache with the default base path /tmp/cache
const cache = new Cache();

// Set a value
cache.set('key', 'value', 10); // expires in 10 seconds

// Get a value
console.log(cache.get('key'));

// Delete a value
cache.delete('key');

// Clear all values
cache.clear();

`

API

$3

Creates a new cache instance that stores the data in the specified path.

- path (optional): the path where the cache files will be stored.


$3

Stores a value in the cache.

- key: the key used to store and retrieve the value.
- value: the value to store.
- ttl (optional): the time to live for this cache entry in seconds. If not provided, the key won't expire.

$3

Retrieves a value from the cache.

- key: the key used to store the value.

Returns the stored value or undefined if the key does not exist or the value has expired.

$3

Deletes a value from the cache.

- key`: the key used to store the value.

$3

Clears all the values from the cache.