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# connect-mongo
MongoDB session store for Connect
[](http://travis-ci.org/kcbanner/connect-mongo)
## Installation
connect-mongo supports only connect `>= 1.0.3`.
via npm:
$ npm install connect-mongo
## Options
- `db` Database name OR fully instantiated node-mongo-native object
- `collection` Collection (optional, default: `sessions`)
- `host` MongoDB server hostname (optional, default: `127.0.0.1`)
- `port` MongoDB server port (optional, default: `27017`)
- `username` Username (optional)
- `password` Password (optional)
- `auto_reconnect` This is passed directly to the MongoDB `Server` constructor as the auto_reconnect
option (optional, default: false).
- `ssl` Use SSL to connect to MongoDB (optional, default: false).
- `url` Connection url of the form: `mongodb://user:pass@host:port/database/collection`.
If provided, information in the URL takes priority over the other options.
- `mongoose_connection` in the form: `someMongooseDb.connections[0]` to use an existing mongoose connection. (optional)
- `stringify` If true, connect-mongo will serialize sessions using `JSON.stringify` before
setting them, and deserialize them with `JSON.parse` when getting them.
(optional, default: true). This is useful if you are using types that
MongoDB doesn't support.
The second parameter to the `MongoStore` constructor is a callback which will be called once the database connection is established.
This is mainly used for the tests, however you can use this callback if you want to wait until the store has connected before
starting your app.
## Example
With express:
var express = require('express');
var MongoStore = require('connect-mongo')(express);
app.use(express.session({
secret: settings.cookie_secret,
store: new MongoStore({
db: settings.db
})
}));
With connect:
var connect = require('connect');
var MongoStore = require('connect-mongo')(connect);
## Removing expired sessions
connect-mongo uses MongoDB's TTL collection feature (2.2+) to
have mongod automatically remove expired sessions. (mongod runs this
check every minute.)
**Note:** By connect/express's default, session cookies are set to
expire when the user closes their browser (maxAge: null). In accordance
with standard industry practices, connect-mongo will set these sessions
to expire two weeks from their last 'set'. You can override this
behavior by manually setting the maxAge for your cookies -- just keep in
mind that any value less than 60 seconds is pointless, as mongod will
only delete expired documents in a TTL collection every minute.
For more information, consult connect's [session documentation](http://www.senchalabs.org/connect/session.html)
## Tests
You need `mocha`.
make test
The tests use a database called `connect-mongo-test`.
## License
(The MIT License)
Copyright (c) 2011 Casey Banner <kcbanner@gmail.com>
Permission is hereby granted, free of charge, to any person obtaining
a copy of this software and associated documentation files (the
'Software'), to deal in the Software without restriction, including
without limitation the rights to use, copy, modify, merge, publish,
distribute, sublicense, and/or sell copies of the Software, and to
permit persons to whom the Software is furnished to do so, subject to
the following conditions:
The above copyright notice and this permission notice shall be
included in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,
EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.