Streaming Geo Coordinates from MongoDB to iPhone with WebSockets and PubNub

Get your PubNub API Keys

http://www.pubnub.com/

First you'll need to get your PubNub API keys by visiting [http://admin.pubnub.com/](PubNub Account Dashboard)

Install MongoDB

Setup MongoDB - OSX

curl http://fastdl.mongodb.org/osx/mongodb-osx-x86_64-2.2.2.tgz > mongodb-osx-x86_64-2.2.2.tgz

Uncompress

tar xvfz mongodb-osx-x86_64-2.2.2.tgz

Add default MongoDB Directory

mkdir -p /data/db

Run MongoDB Server

mongodb-osx-x86_64-2.2.2/bin/mongod

Run MongoDB Interactive JS Console

mongodb-osx-x86_64-2.2.2/bin/mongo

Install Ruby Packages

Make sure you have Ruby 1.9.3 installed.

gem update --system
gem install pubnub
gem install mongo
gem install mongopipe ## MongoDB Pipe
gem install bson_ext

Run PubNub MongoDB Ruby Pipe

You may run the Pipe by issuing this simple command then follow the instructions that print out to test.

Run Pipe via CURL

ruby <(curl http://goo.gl/bUlUh)

You can also download the Pipe file first then run it locally. This basically will save the Ruby source code file to your local hard drive and you can execute it anytime you need to.

Download First

curl http://goo.gl/bUlUh > pipe.rb

Then Run Locally

ruby ./pipe.rb

Follow the Output Instructions. That's it!

The following section only shows a sample insertable document that triggers replication broadcast to the map.

Mongo Console

Next go back to your mongodb console and type the following commands:

use test
db.cap_collection.insert({ latlon : [ 1.5, 2.0 ] })

mongopipe

Runtime