mongodblite

self-contained mongodb implementation

Inspired by meteor

  • I wanted a decoupled library with the same level of functionality provided in meteor
  • Cached on the client-side, and server-side. Less hits to mongodb itself.
  • Allows for users to be sandboxed in their own collection (authentication).
  • listening to cursors for any change
  • fork mongoose ODM and use this as the default driver
  • REST interface mapper
  • sync items to backend (persistence api)
  • rest gateway example
  • DNode driver
  • Http driver
  • object modifiers: $inc, $set, $unset, $push $pushAll, $addToSet, $pop, $pull, $pullAll, $rename, $bit (should be separate repo - fiddle?)
  • cursor.emit("update") when limit, selector, or skip have changed

Here's a simple example using the memory driver:

 
var mdblite = require('mongodblite'),
db = mdblite.db(new mdblite.drivers.Memory());
 
 
var people = db.collection('people');
 
//add some data 
people.insert([
    {
        name: "Craig",
        age: 22
    },
    {
        name: "Tim",
        age: 21
    },
    {
        name: "John",
        age: 20
    }
}
]);
 
//create a filter against the "people" collection 
var peopleOlderThan21 = people.find({age:{$gt:21}}).limit(20);
 
peopleOlderThan21.observe(function(observer) {
    
    //the filtered items - max = 20 
    console.log(observer.source);
 
    observer.on("insert", function(items) {
        //craig - source is also updated 
    });
 
    //called when something big changes, such as limit, or skip 
    observer.on("reset", function() {
 
    });
 
});
 
 
//insert a new user, triggers listener above 
people.insert({
    name: "Sarah",
    age: 22
})