Talk about HTTP/2 fot IoT

1. HTTP/2 fot IOT
20.08.2015 HackIOT @ fablab1.ru

2. In 16 words:
HTTP/2 is better than HTTP/1.1 for most IoT tasks,
sometimes it can replace MQTT and COAP

3. http://caniuse.com/#feat=http2

4. bitly.com/http2-opt

5. bitly.com/http2-opt

6. bitly.com/http2-opt

7. bitly.com/http2-opt

8. bitly.com/http2-opt

9. bitly.com/http2-opt

10. PubSub

11. Broker
Client А Client B
Client C
subscribe “temperature”
subscribe “temperature”
MQTT

12. MQTT
Broker
Client А Client B
Client C
“temperature” = “22”
“temperature” = “22”
publish “temperature” “22”

13. HTTP/2 Pub/Sub
timkellogg.me/blog/2015/02/20/can-http2-replace-mqtt/
PUBLISH foo/bar
POST http://example.com/
topic/foo/bar
SUBSCRIBE foo/bar
GET http://example.com/
topic/foo/bar
UNSUBSCRIBE foo/bar
DELETE http://
example.com/topic/foo/bar

14. HTTP/2 Pub/Sub
• MQTT CONNECT
• MQTT DISCONNECT

15. Service Discovery

16. CoAP (RFC 7252)
http://www.slideshare.net/zdshelby/coap-tutorial

17. CoAP (RFC 7252)
http://www.slideshare.net/zdshelby/coap-tutorial

18. jsonapi.org

21. Scalability
• HTTP/1.1 - easy
• COAP - easy
• HTTP/2 - medium
• MQTT - hard

22. Other Thoughts
• HPACK
• 1 Connection
• Pretty low memory consumption

23. More posts
• http://www.limmat.co/2015/02/18/http-2-the-new-iot-
protocol/
• http://robbysimpson.com/2015/01/26/http2-and-
the-internet-of-things/#comment-14
• https://www.mnot.net/blog/2015/02/18/http2

24. Sergei
Silnov
back-end developer
hackiot.ru
po@kumekay.com
fb.com/silnov