Integrating iOS Applications with Backend REST Services

Presentation given at JAOO 2010, Århus, Denmark.

Transcript

1. Integrating iOS Applications with Backend REST Services Monday, October 4th - JAOO - Århus, Denmark
2. Adrian Kosmaczewski
3. akosma software
4. akosma.com github.com/akosma linkedin.com/in/akosma formspring.me/akosma twitter.com/akosma slideshare.com/akosma
6. My Software Passion
7. People
8. Team members, users, clients, society in general
9. Software is a process
10. Software is a social process
12. One Problem
13. Several Solutions
15. Questions
16. Web Developers?
17. iOS Developers?
18. API Designers or Developers?
19. Server-side Technologies?
21. 1 The Problem
22. Database
23. Many Questions
24. Formats?
25. Libraries?
26. “Best” approaches?
27. 2 The Solutions
28. Bad news
29. Far too many
30. REST vs SOAP
31. XML vs JSON
32. Synchronous vs. Asynchronous
34. Good News
35. Introducing iPhoneWebServicesClient
36. http://github.com/akosma/ iPhoneWebServicesClient
37. 2 parts
38. 1 PHP server app
39. 2 iOS client
40. Many formats
41. XML
42. JSON
43. (duh)
44. • XML • 8 libraries • JSON • 2 parsers • YAML • CSV • SOAP • Property List • XML • Binary • Protocol Buffers
45. Extensible
46. (add more formats and libraries if you want)
47. Variable sized dataset
48. (from 1 to 5000 items per call)
49. Heterogenous Data Source
50. (the same data in different formats)
51. XML Libraries
52. (lots of them)
54. 3 Demo
56. 4 The Tests
57. • Local • Wifi • 3G • EDGE • All Combinations • Different dataset sizes each time
59. 5 Results
60. Easier to implement on the iOS side?
61. 1. JSON + Property Lists + CSV 2. XML (DOM) + Protocol Buffers 3. XML (SAX) 4. SOAP + YAML
62. Easier to implement on the PHP side?
63. 1. JSON + YAML 2. Property List + CSV + XML 3. Protocol Buffers 4. SOAP
64. Smaller Payload
65. 1. CSV + Protocol Buffers + Binary Plist 2. JSON + YAML 3. XML 4. SOAP
66. Fastest Deserialization Speed
67. 1. Property Lists + TBXML 2. SOAP + libxml (DOM) + Google XML 3. JSON 4. YAML + CSV + APXML
68. More Portable?
69. 1. XML + JSON 2. Protocol Buffers + YAML + CSV 3. SOAP 4. Property Lists
70. More Readable?
71. 1. JSON + YAML 2. XML + XML Property Lists 3. Protocol Buffers 4. Binary Property Lists
72. Less Memory Consumption?
73. 1. Binary Property List + Protocol Buffers 2. CSV + JSON + TBXML 3. XML 4. SOAP + APXML
74. Some raw, deeply flawed comparisons?
75. • Binary Plists are 3 to 4 times faster to deserialize than JSON • iPod touch 2nd Gen is ~25% faster than iPhone 3G • iPhone 4 is ~300% faster than iPhone 3G • JSON is 45% of its equivalent XML plist • Binary plist is 35% of its equivalent XML plist
76. The “Best”?
77. 1. JSON + Property Lists 2. TBXML + Protocol Buffers 3. Other XML parsers + CSV 4. YAML + SOAP + APXML
79. 6 Next Steps
80. Test with other server-side technologies
81. (J2EE, ASP.NET, Ruby on Rails, Django...)
82. Test with other Cocoa networking libraries
83. • AsyncSocket http://akos.ma/0x37v • IP*Works! for Mac OS X http://www.nsoftware.com/portal/macos/ • OmniNetworking http://akos.ma/0q • ThoMoNetworking http://hci.rwth-aachen.de/thomonet • ConnectionKit http://github.com/karelia/ConnectionKit/
84. Test with other serialization systems
85. • MessagePack http://msgpack.org/ • Apache Thrift http://incubator.apache.org/thrift/ • BERT http://bert-rpc.org/ • Apache Avro http://avro.apache.org/ • ONC RPC aka Sun RPC http://akos.ma/va Open Network Computing Remote Procedure Call
86. Test with different data sets
87. (sport results, weather, financial data, hyerarchical data, binary data, etc...)
89. Thanks!
90. Questions?
91. These slides are released under a Creative Commons Attribution-No Derivative Works 3.0 Unported License http://creativecommons.org/licenses/by-nd/3.0/