node-dummy-cache

A simple in memory cache to use with nodejs

node-dummy-cache

A simple in memory cache to use with javascript.

npm install node-dummy-cache

Import inside your code:

var cacheFactory = require('node-dummy-cache');

Download lib/dummy-cache.js.

Import inside HTML:

<script type="text/javascript" src="dummy-cache.js"></script>

For old browsers you will also need json2.js.

var users = cacheFactory.create(cacheFactory.ONE_HOUR);
 
users.put(1, { name : 'A' });
 
var user = users.get(1);
var users = cacheFactory.create(cacheFactory.ONE_HOUR, function (idcallback) {
    // Do complex stuff here 
    callback(undefined, user);
});
 
users.get(1, function(erruser) {
    // You got it 
});

Before:

function dummy(abccallback) {
    // Do complex stuff here 
    callback(undefined, 'A', 'B');
};
 
dummy(1, 2, 3, function(errdata1data2) {
    // You got it 
});

Adding cache:

var dummy = cacheFactory.create(cacheFactory.ONE_HOUR, function (abccallback) {
    // Do complex stuff here 
    callback(undefined, 'A', 'B');
});
 
dummy(1, 2, 3, function(errdatadata2) {
    // You got it 
});
var users = cacheFactory.create(cacheFactory.ONE_HOUR, function (idcallback) {
    // Do complex stuff here 
    callback(undefined, user);
});
 
users.get(1, function(erruser) {
    // You got it 
});
 
users(1, function(erruser) {
    // You got it 
});
 
var user = users.get(1); // Returns only if cached 
 
user = users(1); // Returns only if cached 
var users = cacheFactory.create(cacheFactory.ONE_HOUR, function (id1id2callback) {
    // Do complex stuff here 
    callback(undefined, user, date);
});
 
users.get(1, 2, function(erruserdate) {
    // You got it 
});
 
var user = users.get(1, 2); // Returns the user only if cached 
 
users.put(1, 2, user); // Adds the user, but no date 
 

All arguments passed to the get / put must be JSON serializable.

Creates a new cache.

Params:

  • maxAliveTimeMS : Max time a value will stay in cache starting with its creation
  • maxNotAccessedTimeMs : Max time a value will stay in cache after its last access
  • fetcher : callback to fetch the data

Creates a new cache.

Params:

  • maxAliveTimeMS : Max time a value will stay in cache starting with its creation
  • fetcher : callback to fetch the data

Creates a new cache. All values must be added to cache using put.

Params:

  • maxAliveTimeMS : Max time a value will stay in cache starting with its creation
  • maxNotAccessedTimeMs : Max time a value will stay in cache after its last access

Creates a new cache. Values never expires.

Params:

  • fetcher : callback to fetch the data

Creates a new cache. All values must be added to cache using put.

Params:

  • maxAliveTimeMS : Max time a value will stay in cache starting with its creation

Creates a new cache. Values never expires. All values must be added to cache using put.

MIT. Check LICENSE file.