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Added memcached support
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25
README.md
25
README.md
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@ -82,9 +82,9 @@ Where `path` represents where you want the files stored
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### Redis
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To use redis storage you must install the redis package in npm globall using
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To use redis storage you must install the redis package in npm
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`npm install redis --global`
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`npm install redis`
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Once you've done that, your config section should look like:
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@ -101,6 +101,27 @@ You can also set an `expire` option to the number of seconds to expire keys in.
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All of which are optional except `type` with very logical default values.
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### Memcached
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To use memcached storage you must install the `memcache` package via npm
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`npm install memcache`
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Once you've done that, your config section should look like:
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``` json
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{
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"type": "memcached",
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"host": "127.0.0.1",
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"port": 11211
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}
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```
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You can also set an `expire` option to the number of seconds to expire keys in. This behaves just like the redis expirations, but does not push expirations forward on GETs.
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All of which are optional except `type` with very logical default values.
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## Author
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John Crepezzi <john.crepezzi@gmail.com>
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44
lib/memcached_document_store.js
Normal file
44
lib/memcached_document_store.js
Normal file
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@ -0,0 +1,44 @@
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var memcached = require('memcache');
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var winston = require('winston');
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// Create a new store with options
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var MemcachedDocumentStore = function(options) {
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this.expire = options.expire;
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if (!MemcachedDocumentStore.client) {
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MemcachedDocumentStore.connect(options);
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}
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};
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// Create a connection
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MemcachedDocumentStore.connect = function(options) {
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var host = options.host || '127.0.0.1';
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var port = options.port || 11211;
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this.client = new memcached.Client(port, host);
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this.client.connect();
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this.client.on('connect', function() {
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winston.info('connected to memcached on ' + host + ':' + port);
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});
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this.client.on('error', function(e) {
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winston.info('error connecting to memcached', { error: e });
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});
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};
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// Save file in a key
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MemcachedDocumentStore.prototype.set = function(key, data, callback, skipExpire) {
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MemcachedDocumentStore.client.set(key, data, function(err, reply) {
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err ? callback(false) : callback(true);
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}, skipExpire ? 0 : this.expire);
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};
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// Get a file from a key
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MemcachedDocumentStore.prototype.get = function(key, callback, skipExpire) {
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var _this = this;
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MemcachedDocumentStore.client.get(key, function(err, reply) {
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callback(err ? false : reply);
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if (_this.expire && !skipExpire) {
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winston.warn('memcache store does not currently push forward expirations on GET');
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}
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});
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};
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module.exports = MemcachedDocumentStore;
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