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`connect` Mongoose session store

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README.md

session-mongoose module is an implementation of connect session store using Mongoose.

Status

I believe every open source project should clearly indicate its status and intended applications of the project. In that spirit, here is the status of session-mongoose.

This project is IMO not production-ready for following reasons:

  1. insufficient testing
  2. zero optimization
  3. there are better options than MongoDB for session storage.

I use session-mongoose primarily in prototype webapps where above factors don't matter.

Accordingly, I am ready to commit just enough time to fix things when things break. I can't guarantee all reported issues will be fixed in reasonable amount of time but I do try to address them promptly mainly because I can't sleep at night when someone in need is out there.

Implementation Note:

Uses its own instance of Mongoose object, leaving default instance for use by the app.

Install

npm install session-mongoose

Usage

Create session store:

var connect = require('connect');
var SessionStore = require("session-mongoose")(connect);
var store = new SessionStore({
    url: "mongodb://localhost/session",
    interval: 120000 // expiration check worker run interval in millisec (default: 60000)
});

Configure Express

var express = require("express");
var SessionStore = require("session-mongoose")(express);
var store = new SessionStore({
    url: "mongodb://localhost/session",
    interval: 120000 // expiration check worker run interval in millisec (default: 60000)
});
...
// configure session provider
app.use(express.session({
    store: store,
    cookie: { maxAge: 900000 } // expire session in 15 min or 900 seconds
}));
...

Using custom connection

var mongoose = require("mongoose");
mongoose.connect("mongodb://localhost/mysessionstore");

var SessionStore = require("session-mongoose")(express);
var store = new SessionStore({
    interval: 120000, // expiration check worker run interval in millisec (default: 60000)
    connection: mongoose.connection // <== custom connection
});

That's it.

Turning off the sweeper that expires sessions

You can also turn of the sweeper that runs every 'interval' seconds by setting the sweeper option to false. It is true by default.

var SessionStore = require("session-mongoose")(express);
var store = new SessionStore({
    sweeper: false,
    connection: mongoose.connection // <== custom connection
});

Custom Session Model Name

Setting modelName option will override default session model name (Session).

var store = new SessionStore({
    modelName: "Foobar" // collection name will be "foobars"
});

Experimental TTL support

MongoDB version 2.2+ has built-in TTL (time-to-live) support.

To enable TTL-support, set ttl option to session TTL in seconds.

var store = new SessionStore({
    connection: mongoose.connection, // <== custom connection
    ttl: 3600 // session expires in 60 minutes
});

As expected, the sweeper will be disabled when TTL support is used.

  • WARNING 1: This feature hasn't been tested yet.
  • WARNING 2: TTL-support uses a slightly different schema so you may run into migration issues.

Also See

Similar Projects

Related Projects

TBD

Migration Notes

Version 0.2 Migration Note

  • an instance of connect module (or equivalent like express) is now required to get SessionStore implementation (see examples above).

  • moved Mongoose model for session data to session store instance (SessionStore.model).

    var connect = require('connect');
    var SessionStore = require("session-mongoose")(connect);
    var store = new SessionStore({
        url: "mongodb://localhost/session",
        interval: 120000 // expiration check worker run interval in millisec (default: 60000)
    });
    var model = store.model; // Mongoose model for session
    
    // this wipes all sessions
    model.collection.drop(function (err) { console.log(err); });
    

Version 0.1 Migration Note

  • connect moved from dependencies to devDependencies.

Version 0.0.3 Migration Note

Version 0.0.3 changes Mongoose schema data type for session data from JSON string to Mixed.

If you notice any migration issues, please file an issue.

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