HTTP/2 fot IOT20.08.2015 HackIOT @ fablab1.ru

In 16 words:

HTTP/2 is better than HTTP/1.1 for most IoT tasks, sometimes it can replace MQTT and COAP

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

bitly.com/http2-opt

bitly.com/http2-opt

bitly.com/http2-opt

bitly.com/http2-opt

bitly.com/http2-opt

bitly.com/http2-opt

PubSub

Broker

Client А Client B

Client C

subscribe “temperature”

subscribe “temperature”

MQTT

MQTT

Broker

Client А Client B

Client C

“temperature” = “22”

“temperature” = “22”

publish “temperature” “22”

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

HTTP/2 Pub/Sub

• MQTT CONNECT

• MQTT DISCONNECT

Service Discovery

CoAP (RFC 7252)

http://www.slideshare.net/zdshelby/coap-tutorial

CoAP (RFC 7252)

http://www.slideshare.net/zdshelby/coap-tutorial

jsonapi.org

Scalability

• HTTP/1.1 - easy

• COAP - easy

• HTTP/2 - medium

• MQTT - hard

Other Thoughts

• HPACK

• 1 Connection

• Pretty low memory consumption

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

Sergei Silnov

back-end developer

hackiot.ru

po@kumekay.com fb.com/silnov