Introducing Realtime - Node.js Dublin

A brief introduction to real-time web with no code, a bit of history and a.. actually, wait, there's no DeLorean's here...

Transcript

1. Micheil Smith / @miksago Node.js Dublin / 28th June 2012 Introducing Realtime
2. Ask a question: https://twitter.com/miksago/status/207741122942992384
3. Receive Answers: • Show the improvement in ‘experience’ • Use examples: stock exchange, games, Facebook and iOS push noti ications • Just hammer the message into them
4. An interesting answer:
5. So, perhaps, the question is not the importance of realtime...
6. ...but rather, what is realtime?
8. First, a quick story
9. It begins with this...
11. The story of the Acoustic Telegraph
12. • Alexander Graham Bell & team • Invented between 1874 and 1876 • Patent #174,465 issued 1876 • Prior works: Telegraph, Postal Service
13. 1886: Over 150, 000 in the United States with telephones.
14. This radically changed how we communicate.
15. Now... back to the Real-time 10:21:2015
16. How do you define real-time?
17. My definition: Real- time same or greater speed than by telephone.
18. Enough definitions. Let’s talk about transport.
19. WebSockets, WebSockets, WebSockets, Oh, and... Server-Sent Events, ...and... Long-polling ...and.... ...and...
20. Firstly, Server-sent Events • Push-messaging from Server to Client • Very simple, text-based protocol • A W3C Standard • Wide-spread, uniform browser support http://www.w3.org/TR/eventsource/
21. Secondly, WebSockets • Bidirectional messaging • Complex, yet powerful binary protocol • A W3C + IETF Standard • Wide-spread browser support, but varying incompatible historic versions http://www.w3.org/TR/websockets/
22. Thirdly? Well, let’s forget about those...
23. ...unless you’re: Socket.IO, Faye, or Sockjs
24. The drawbacks or Even if your intentions are good, it can backfire drastically!
25. • Di icult to scale & manage • Shift in development patterns • Known as being “risky” • Cloud hosting providers aren’t always up with support
26. The wins or Whoa! Rock 'n' Roll.
27. • Greatly enhances user engagement • Enables richer, faster applications • Backed by “big players” • The “next big thing”?
29. If my calculations are correct, when this baby hits eighty-eight miles an hour, you're going to see some serious shit.
31. Oh, by the way, I work for State And we’re hiring.
32. Thanks for listening! @miksago on Geekli.st / Github / Twitter / State aka, everything.