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easy-cache-manager

v2.0.0

Published

package to easily manage cache services

Downloads

5

Readme

easy-cache-manager

This package allows you to easily manage your application cache, using one of two methods: local memory and MemCached. Note: Redis service will be soon provided

Instalation

npm install easy-cache-manager [--save|-g]

Setting up

Currently there is two modes of cache that you can use: local memory and memcached. You can choose which one are you going to use.

1. Local Memory

const ECM = require('easy-cache-manager');
const EasyCacheManager = new ECM ({
    type: 'Local memory',
    /* THESE PARAMETERS ARE OPTIONAL
        timeout: <timeout in milliseconds>,
        prefix: <String with the prefix for all objects in cache>
    */
});

Note: If you do not provide a timeout parameter, the object will be in memory as long as the process is running.

2. Memcached

const ECM = require('easy-cache-manager');
const EasyCacheManager = new ECM ({
    type: 'Memcached',
    /* THESE PARAMETERS ARE OPTIONAL
        endpoint: <Endpoint of Memcached.>,
        timeout: <timeout in milliseconds>,
        promise: <promise object. Default: require('bluebird')>,
        prefix: <String with the prefix for all objects in cache>
    */
});

Note: If you do not provide a timeout parameter, the object will be in memory as long as the memcached process is running. Also, if you do not provide a host parameter, the default value is localhost. It is require to have installed memcached for the host given.

Usage

There are 2 functions: get object and set object.

1. Get Object

This method return the object in cache with the given key

EasyCacheManager.getObject(key).then(function(objCache){
    // objCache can be null
}).catch(function(err){
    // connection or internal libraries error
});

2. Set object

This method sets an object in the cache service. options object is optional.

EasyCacheManager.setObject(key, object[,options]).then(function(resp){
    // resp is an 'ok' message
}).catch(function(err){
    // connection or internal libraries error
});

Options object

{
    timeout: 1494277474 // Unix standar
}

Prefix

You can define a global prefix and the library will add it to all the object keys.

Example

const ECM = require('easy-cache-manager');
const EasyCacheManager = new ECM ({
    type: 'Memcached',
    timeout: 1494277474,
    prefix: 'prefix_'
});