A much better option is to use Levelup & RocksDB
version 0.0.1
FSCache is a filesystem based caching utility. It stores values based on key/value. Key and Value must both be JSON serializable.
Since FSCache writes to disk (obviously), you should not use this tool as a frequently accessed data store for high traffic websites/web apis. FSCache is better used for command line tools, infrequently accessed configurations, or any project where you need a lightweight key/val store and performance for high traffic is not a concern.
Though the api contains both sync and async versions for accessing the cache, reading/writing to disk is an expensive process.
npm install fscache
As typical in node, there is a async and sync version of each method.
This method creates a new directory that you specify which will act as your cache storage.
It returns a Cache object for accessing the cache.
/*
* @param {Number} ttl - how long to store a value. null will store forever
* default: null
* @param {String} dir - Where to store data
*/
var Cache = require("fscache");
// Async
Cache.create(50, dir, function (err, cache) {
// Do stuff with cache
});
// Sync
var cache = Cache.createSync(1000, dir);
Store data
/*
* @visibility private
* @param {Mixed} key - A JSON stringifiable value
* @param {Mixed} val - a JSON stringifiable value
*/
// Async
cache.put({id: 1}, "cached", function(err), function () {
});
cache.putSync({id: 2}, {cached: "data"});
Get a stored value
/*
* @param {Mixed} key - A JSON stringifiable key that is used to lookup
* up a cached file
*/
// Async
cache.get({id: 1}, function (err, val) {
if (err) throw err;
console.log(val); // "cached";
});
// Sync
var val = cache.get({id: 2});
console.log(val); // {cached: "data"}
/*
* @param {Mixed} key - A JSON stringifiable key that is used to lookup
* up a cached file
*/
// Async
cache.del({id:1}, function (err) {
if (err) throw err;
});
// Sync
cache.del({id: 2});
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