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Tutorials, demos, and code walkthroughs for a wide variety of real-time web, mobile, and IoT projects.

Building Real-time Geolocation Apps: JavaScript and PubNub
BuildAug 13, 2013

Building Real-time Geolocation Apps: JavaScript and PubNub

Geolocation is a great way to add another layer of interactivity to a real-time application. By knowing the location of your users, it’s easy to group them into pools and provide data and notifications to specific user channels. Additionally, it can be a great combination for real-time applications...
Michael Carroll
Michael Carroll
Making Peer Data Connections in the Browser With WebRTC
BuildAug 1, 2013

Making Peer Data Connections in the Browser With WebRTC

The WebRTC data channel allows you to establish a peer to peer connection and send data between two browsers, no backend required.

Michael Carroll
Michael Carroll
Building WebRTC Filesharing with PubShare
BuildJul 23, 2013

Building WebRTC Filesharing with PubShare

A couple of weeks ago, we announced our WebRTC SDK, expanding our ever-growing list of PubNub supported SDKs. This API makes incorporating WebRTC into a PubNub enabled app straightforward and simple. In addition to the new SDK, we introduced a prototype WebRTC demo called PubShare, just one example of...
Michael Carroll
Michael Carroll
How to Create a Photo Sharing App with Cloudinary API
BuildJul 10, 2013

How to Create a Photo Sharing App with Cloudinary API

Photo sharing applications are no longer just about manipulating and uploading photos to the cloud. The success of Instagram has shown that photo sharing apps need a way for users to interact in real time, one where users can subscribe to channels and notify other users that they’ve uploaded a...
Michael Carroll
Michael Carroll
Content Writer, PubNub
WebRTC File Transfer in the Browser: PubShare
BuildJun 27, 2013

WebRTC File Transfer in the Browser: PubShare

The generally “go-to” app for real-time interaction is some form of messaging, be it text chat, video or audio. However, we all know there must be more applications of real-time communication out there. File transfer is one of those applications that developers seem to have forgotten about, probably...
Michael Carroll
Michael Carroll
Streaming Geo Coordinates API From MongoDB: iOS App
BuildMay 3, 2013

Streaming Geo Coordinates API From MongoDB: iOS App

**NOTE: Since we wrote this tutorial, we’ve released a new, completely-redesigned version of our iOS SDK (4.0). We rebuilt the entire codebase and took advantage of new features from Apple, simplifying and streamlining the SDK. The code from this tutorial still works great, but we recommend checking...
Stephen Blum
Stephen Blum
CTO, PubNub
Content Commander WordPress Plugin for Live Blogging
BuildApr 26, 2012

Content Commander WordPress Plugin for Live Blogging

Bloggers are often pointed to as the taste-makers of internet. For example, in the music world, the hippest of hip music is usually first discovered and promoted by bloggers. Sadly, if they want to share cool stuff with their audiences, they still have to do it the Web 1.0 way. Push Any Content with...
Michael Carroll
Michael Carroll
Your Style Sheet in Real time
BuildJul 9, 2011

Your Style Sheet in Real time

First: sign-up for a PubNub account. You have always wanted to send CSS updates to your website or HTML5 mobile app in Real time. How do you do this? It was hard before PubNub right? Change the value of the CSS in the text box below, then press “Broadcast CSS Changes” button. What will pressing...
Stephen Blum
Stephen Blum
CTO, PubNub
Real-time Multi Touch with PubNub
BuildMay 11, 2011

Real-time Multi Touch with PubNub

This tutorial walks you through how to build real-time multi touch functionality with PubNub, enabling you to sync multi touch actions across any number of devices. Check out the live multi touch demo here (open in two browser windows), or check out the multi touch source code. Use your fingers to transmit...
Stephen Blum
Stephen Blum
CTO, PubNub