src

src
===

Simple Redis Cache

###Usage

src takes one hash parameter with url and expiry defined. Expiry is the
number of seconds a value is non expired in Redis.

``javascript
var src = require('src');
var cache = src(
{
url:'redis://user:password@example.com:9073/'
,expiry:2
}
);
`
Callbacks for set are optional
`javascript
cache.set('key', 'value', [cb]);
`
get requires a callback
`javascript
cache.get('key', function(err, value){
if(typeof value !== 'undefined')
console.log(value);
});
`
If the key has expired, err will not be used to determine this. Err will
only be a non null value when an error is thrown from Redis.

If you want to delete a key from the cache explicity src provides this
functionality through `cache.del`

Callbacks are optional for del
`javascript
cache.del('key', [cb]);
``