Real Time iOS apps with PubNub

Slides for a Santex Techmeetup at Lima. https://eventioz.pe/e/tech-meetup-realtime-ios-app-with-pubnub

Transcript

1. REAL-TIME iOS APPS WITH
2. who am I ?
3. JOSE TORRES @coch3_ B.S. in Software Engineering Currently making Software Products based on iOS platform Visual Arts passionate and French Bulldogs lover
4. what is real-time communication anyway?
5. Any live telecommunications that occur without transmission delays. Nearly instant with minimal latency.
6. common scenario
24. common workarounds
30. WARNING TECHNICAL CONTENT
31. PULL TECHNOLOGIES Initial request for data originates from the client, and then is responded to by the server.
32. PUSH TECHNOLOGIES Request for a given transaction is initiated by publisher or central server.
33. PUSH TECHNOLOGIES HTTP Server Push/HTTP Streaming, Long Polling/Polling, ...
34. HALF DUPLEX Initial channel can send and receive, but not at the same time.
35. BUT... All of these methods for providing real-time data involve HTTP request and response headers, which contain lots of additional, unnecessary header data and introduce latency.
36. HTTP Simply put, HTTP wasn't designed for real-time.
37. how do we achieve real- time then?
38. WEB SOCKETS Allow a long-held single TCP socket connection to be established between the client and server which allows for bi- directional, full duplex, messages to be instantly distributed with little overhead resulting in a very low latency connection
39. FULL DUPLEX Data can travel in both directions simultaneously. Bidirectional communications channel that operates through a single socket over the Web.
40. CONTENT AS IT HAPPENS
42. not at all
43. WEB SOCKETS ARE NOT COMPLEX
44. WEB SOCKETS ARE VERY COMPLEX
45. FUNCTIONALITY = 25 % OPERATIONAL + SCALING = 75 %
46. hopefully...
55. case studies
59. our experience
61. DEMO
62. crazycolors https://github.com/coch3/crazycolors
63. + Information PubNub PubNub documentation PubNub websockets Why your app needs real-time ? Websockets iOS SDK PubNub best practices http://www.pubnub.com/ http://cocoadocs.org/docsets/PubNub http://www.pubnub.com/blog/what-are-websockets http://venturebat.com/2013/04/05/why-your-app-needs-to-be-real-time/ http://www.websocket.org/quantum.html http://www.pubnub.com/docs/objective-c/iOS/ios-sdk.html https://help.pubnub.com/entries/22271342-PubNub-Best-Practices
64. THANKS! www.josetorrescardenas.com
65. www.santexgroup.com