Storeman

A man to help you unify API for mischellaneous storage engines.

Provide a handful set of of useful methods: get, set (with ttl), del, mget.

With built-in Redis and LevelUP support.

Usage

var Storeman = require('storeman')
var Redis = require('redis')
var levelup = require('levelup')

// cache with Redis
var cache = new Storeman({
    prefix: 'cache:',
    client: Redis.createClient(),
    encode: function(data){
        return JSON.stringify(data)
    },
    decode: function(data) {
        return JSON.parse(data)
    }
})

// persistent storage with leveldb
var store = new Storeman({
    prefix: 'store:',
    client: levelup('./var/leveldb')
})

API

The main purpose of this module is to provide a higher level of consistent API over different storage clients. That means:

• consistent method name
• consistent function signature
• consistent return results

All methods include:

store.get(key, callback)

Will callback(null, undefined) when no data is found, not return a null (as redis does) or emit an error (as leveldb does). This behavior is for in case you want really set data as null.

store.set(key, value, [ttl], callback)

The client is responsible for handling ttl, Storeman will not do this for you.

store.del(key, callback)

Supports batch delete by passing an Array as key.

License

the MIT license.