WhatRTC? Everything you need to know to connect browsers to the world. (4Developers 2015)

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WHATRTC?

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Phil Nash @philnash http:/ /philna.sh philnash@twilio.com

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CLOUD COMMUNICATIONS

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(+48) 73 248 31 45

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TECH CHECK

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Today • Communication • Introduction to WebRTC • Implementing WebRTC • Applications of WebRTC

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COMMUNICATION

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CONTEXT

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WHAT IS WEBRTC?

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WEB REAL TIME COMMUNICATION

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REALLY REAL TIME

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PEER TO PEER

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SUPPORT

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MOBILE SUPPORT

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APIs • getUserMedia • RTCPeerConnection • RTCDataChannel

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WHAT DOES WEBRTC DO?

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Get Video

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AWESOME RIGHT?

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HOW DOES IT WORK?

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Meet Alice and Bob

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PRESENCE

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You need a server

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Alice logs on

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Bob logs on

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Alice knows Bob is there

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NAT TRAVERSAL

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ICE ICE BABY

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ICE ICE Baby • ICE — Interactive Connectivity Establishment • NAT — Network Address Translation • STUN — Session Traversal Utilities for NAT • TURN — Traversal Using Relays around NAT

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Hidden behind NAT

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Alice gets ICE candidates

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Bob gets ICE candidates

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SIGNALLING

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Alice sends candidates to Bob

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Bob sends candidates to Alice

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USER MEDIA

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getUserMedia

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Media oﬀer/answer

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Connection!

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TURN Connection!

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Summary • Presence • NAT Traversal • User Media • Signalling

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OTHER WEBRTC IDEAS

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Waggledance Distribute bandwidth amongst video viewers • Example: http:/ /waggle.monkeypatch.me/ • Code: https:/ /github.com/tOkeshu/waggle.js • Video: https:/ /www.youtube.com/watch? v=pyIIkUV3moM

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Webtorrent Streaming torrent client for node and the browser • Code: http:/ /webtorrent.io/ • npm: https:/ /www.npmjs.org/package/webtorrent

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Gaming • sLive gaming against friends • CubeSlam: https:/ /www.cubeslam.com/

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Remember those texts? Call

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MayDay results Launched September 2013, by April 2014 • 44 advisors sang happy birthday • 648 advisors had been serenaded • 35 advisors had received marriage proposals • 3 customers asked for a bedtime story • 1 customer asked for help with a particularly diﬃcult level of Angry Birds

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Resources • http:/ /bit.ly/stunturn • https:/ /github.com/philnash/video-chat • https:/ /github.com/philnash/whatrtc

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NASH20

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Help me! On a scale of 0 to 10, how likely is it that you would recommend this talk to a friend or colleague? (+48) 73 248 31 45

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ONWARD!

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Thanks! @philnash http:/ /philna.sh philnash@twilio.com