From pull to push: towards a real-time web

BcnDevCon 2012 talk on real-time and web.

Code for WebSocket example available at https://github.com/aitorciki/bcndevcon-websocket

Transcript

1. Aitor Guevara @aitorciki • aitor@ducksboard.com From pull to push Towards a real-time web!
2. real-time web... why?
6. pull?
8. push?
11. network communication who initiates request? client pulls server pushes
13. content delivery data flow direction? consumer pulls producer pushes
14. client pulls from server and... ... is NOT real-time
15. server pushes to client and ... ... IS real-time
17. web is pull
19. request/response (http) 1 connection/request frequent polling resources waste no real-time!
20. can the web be push?
21. flash / java
22. flash / java + no http limitations + regular sockets - no standard - plugin availability
23. long polling / comet
24. long polling / comet + compatibility + leverages http - half-duplex - no cross-domain
25. server-sent events
26. server-sent events + standard (html5) + regular http - half-duplex - momentum
27. websocket
28. websocket + standard (html5) + full-duplex - no http - separated port
30. real-time producers
31. http streaming http webhooks message queues databases etc ...
32. show me the code!
33. Q&A
34. Aitor Guevara @aitorciki • aitor@ducksboard.com Thank you!