automattic / mydb

This repository is no longer maintained

mydb

MyDB realtime server.

Example

var http = require('http').Server();
var mydb = require('mydb')(http);
http.listen(3000);

That's all there's to it. Point your mydb-client to it, and hook up MongoDB events through mydb-driver or by setting up mydb-tail.

To expose documents with express that you can request with MyDB on the frontend, use mydb-expose.

API

mydb(server)

Attaches the mydb server to a http.Server.

Testing

In order to run the tests

• You can either:
  • Start Redis: redis-server
  • Start MongoDB: mongod
• Or:
  • Go to test/
  • docker-compose up
• Run the tests: make test

License

MIT

mydb's Issues

#get, #each, #upon tests

Hash the sid with the `_id` to produce the subscription id

pending subscriptions being spliced while in `.forEach` causing iteration problems

Hey @guille, so I've been using mydb in my development for a little while, but recently noticed some quirky stuff with operations just buffering and not getting sent.

On these few lines, any pending subscriptions are itterated and added to the associated client. If the subscription has been added previously, it will be destroyed and not added.

However, destroying a pending subscription will cause it to be spliced from the pending array, causing the original .forEach to not itterate correctly.

I've tried swapping the .forEach out with a reversed for loop and appears to be working better, but I'm going to try and write a test later to be certain.

Partial field tests.

Add tests for positional operator

Just for the lulz

Publish socket disconnections

Then we can consume them to determine users presence from a different daemon.

.get() must provide doc parameter

.get() method must prove doc as parameter in the callback function

db.get(<route>, function(doc){ ...  })

Capture subscriptions through redis SUB

Add tests for $rename

Subscription timeouts

Add tests for $pull

Add tests for $pop

Make mydb routes work with any express routes

I have a clever idea for this

Partial field checking

Subscription#checkFields

Consider oplog inspection for publishing changes to redis

This way you don't need to use a "mydb driver", and even stuff from the mongo CLI gets sent down to clients.

Reads:

• http://denormalised.com/home/mongodb-pub-sub-using-the-replication-oplog.html
• http://www.kchodorow.com/blog/2010/10/27/bending-the-oplog-to-your-will/

Subscription removal tests.

Evaluate perf of single redis socket vs 1 redis socket per subscription

Emit events upon socket connection without subscription packet

Add tests for exposing promises

findAndModify support

Tests for partial field selection updates

Scope payload and op events by document uri

Add tests for positional operator

A query like this should work:

.update({ _id: <id>, 'some.embeded': 'stuff }, { $set: { 'some.$.embedded': 'woot' } })

Publish mongo-minify

https://github.com/cloudup/mydb/blob/master/package.json#L11

Add $pullAll tests

Subscription endpoint

Document subscriptions removal