Everybody Loves AFNetworking And So Can You!

Transcript

1. Everybody Loves AFNetworking ...and So Can You! Mattt Thompson CocoaConf

   Columbus 2012
2. None
3. None
4. None

5. AFURLConnectionOperation AFHTTPRequestOperation JSON XML plist Image AFHTTPClient

6. AFURLConnectionOperation

7. NSURLConnection + NSOperation

8. None
9. None
10. None

11. NSURLConnection • High-Level Networking API • Delegate-based Callbacks

12. URL Loading System

13. URL Loading System • URL Loading • NSURLConnection • NSURLRequest

    • NSURLResponse

14. URL Loading System • URL Loading • NSURLConnection • NSURLRequest

    • NSURLResponse • Caching • NSURLCache • NSURLCacheResponse

15. URL Loading System • URL Loading • NSURLConnection • NSURLRequest

    • NSURLResponse • Caching • NSURLCache • NSURLCacheResponse

16. URL Loading System • URL Loading • NSURLConnection • NSURLRequest

    • NSURLResponse • Caching • NSURLCache • NSURLCacheResponse • Authentication & Credentials • NSURLCredential • NSURLAuthenticationChallenge

17. URL Loading System • URL Loading • NSURLConnection • NSURLRequest

    • NSURLResponse • Caching • NSURLCache • NSURLCacheResponse • Authentication & Credentials • NSURLCredential • NSURLAuthenticationChallenge • Cookies • NSHTTPCookie

18. URL Loading System • URL Loading • NSURLConnection • NSURLRequest

    • NSURLResponse • Caching • NSURLCache • NSURLCacheResponse • Authentication & Credentials • NSURLCredential • NSURLAuthenticationChallenge • Cookies • NSHTTPCookie • Protocols • NSProtocol

19. NSURLConnection Delegate Methods

20. NSURLConnection Delegate Methods - connection:didReceiveResponse:

21. NSURLConnection Delegate Methods - connection:didReceiveResponse: - connection:didReceiveData:

22. NSURLConnection Delegate Methods - connection:didReceiveResponse: - connection:didReceiveData: - connectionDidFinishLoading:

23. NSURLConnection Delegate Methods - connection:didReceiveResponse: - connection:didReceiveData: - connectionDidFinishLoading: -

    connection:didFailWithError:

24. NSURLConnection Delegate Methods - connection:didReceiveResponse: - connection:didReceiveData: - connectionDidFinishLoading: -

    connection:didFailWithError: - connection:willCacheResponse:

25. NSOperation • Atomic Unit of Computation • Concurrently executed in

    NSOperationQueue • Encapsulates State • started, executing, finished • Cancelable • Completion Blocks

26. AFURLConnectionOperation • NSOperation Subclass • Implements NSURLConnection Delegate Methods •

    Supports Streaming Uploads / Downloads • Stores Request, Response, Data
27. None

28. NSURL *URL = [NSURL URLWithString:@"http://httpbin.org/ip"];

29. NSURL *URL = [NSURL URLWithString:@"http://httpbin.org/ip"]; NSURLRequest *request = [NSURLRequest requestWithURL:URL];

30. NSURL *URL = [NSURL URLWithString:@"http://httpbin.org/ip"]; NSURLRequest *request = [NSURLRequest requestWithURL:URL];

    AFURLConnectionOperation *operation = [[AFURLConnectionOperation alloc] initWithRequest:request];

31. NSURL *URL = [NSURL URLWithString:@"http://httpbin.org/ip"]; NSURLRequest *request = [NSURLRequest requestWithURL:URL];

    AFURLConnectionOperation *operation = [[AFURLConnectionOperation alloc] initWithRequest:request]; operation.completionBlock = ^ { NSLog(@"Complete: %@", operation.responseString); };

32. NSURL *URL = [NSURL URLWithString:@"http://httpbin.org/ip"]; NSURLRequest *request = [NSURLRequest requestWithURL:URL];

    AFURLConnectionOperation *operation = [[AFURLConnectionOperation alloc] initWithRequest:request]; operation.completionBlock = ^ { NSLog(@"Complete: %@", operation.responseString); }; [operation start];

33. AFURLConnectionOperation

34. AFURLConnectionOperation AFHTTPRequestOperation

35. AFHTTPRequestOperation • AFURLConnectionOperation Subclass • Adds Knowledge Specific to HTTP

    • Status Codes • MIME Types • Adds Success / Failure Distinction
36. None

37. NSURL *URL = [NSURL URLWithString:@"http://httpbin.org/robots.txt"];

38. NSURL *URL = [NSURL URLWithString:@"http://httpbin.org/robots.txt"]; NSURLRequest *request = [NSURLRequest requestWithURL:URL];

39. NSURL *URL = [NSURL URLWithString:@"http://httpbin.org/robots.txt"]; NSURLRequest *request = [NSURLRequest requestWithURL:URL];

    AFHTTPRequestOperation *operation = [[AFHTTPRequestOperation alloc] initWithRequest:request]; [operation setCompletionBlockWithSuccess: ^(AFHTTPRequestOperation *operation, id responseObject) {

40. NSURL *URL = [NSURL URLWithString:@"http://httpbin.org/robots.txt"]; NSURLRequest *request = [NSURLRequest requestWithURL:URL];

    AFHTTPRequestOperation *operation = [[AFHTTPRequestOperation alloc] initWithRequest:request]; [operation setCompletionBlockWithSuccess: ^(AFHTTPRequestOperation *operation, id responseObject) { NSLog(@"Success: %@", operation.responseString); } failure:^(AFHTTPRequestOperation *operation, NSError *error) { NSLog(@"Failure: %@", error); }];

41. NSURL *URL = [NSURL URLWithString:@"http://httpbin.org/robots.txt"]; NSURLRequest *request = [NSURLRequest requestWithURL:URL];

    AFHTTPRequestOperation *operation = [[AFHTTPRequestOperation alloc] initWithRequest:request]; [operation setCompletionBlockWithSuccess: ^(AFHTTPRequestOperation *operation, id responseObject) { NSLog(@"Success: %@", operation.responseString); } failure:^(AFHTTPRequestOperation *operation, NSError *error) { NSLog(@"Failure: %@", error); }]; [operation start];

42. AFURLConnectionOperation AFHTTPRequestOperation

43. AFURLConnectionOperation AFHTTPRequestOperation JSON XML plist Image

44. Operations should encapsulate everything it takes to get what you

    want

45. Success / Failure JSON XML Image Status Code Content Type

    2XX 2XX 2XX application/json text/json text/javascript application/xml text/xml image/tiff image/jpeg image/gif image/png
46. None

47. NSURL *URL = [NSURL URLWithString:@"http://httpbin.org/get"];

48. NSURL *URL = [NSURL URLWithString:@"http://httpbin.org/get"]; NSURLRequest *request = [NSURLRequest requestWithURL:URL];

49. NSURL *URL = [NSURL URLWithString:@"http://httpbin.org/get"]; NSURLRequest *request = [NSURLRequest requestWithURL:URL];

    AFJSONRequestOperation *operation = [AFJSONRequestOperation JSONRequestOperationWithRequest:request success:^(NSURLRequest *request, NSHTTPURLResponse *response, id JSON) {

50. NSURL *URL = [NSURL URLWithString:@"http://httpbin.org/get"]; NSURLRequest *request = [NSURLRequest requestWithURL:URL];

    AFJSONRequestOperation *operation = [AFJSONRequestOperation JSONRequestOperationWithRequest:request success:^(NSURLRequest *request, NSHTTPURLResponse *response, id JSON) { NSLog(@"Success :%@", JSON);

51. NSURL *URL = [NSURL URLWithString:@"http://httpbin.org/get"]; NSURLRequest *request = [NSURLRequest requestWithURL:URL];

    AFJSONRequestOperation *operation = [AFJSONRequestOperation JSONRequestOperationWithRequest:request success:^(NSURLRequest *request, NSHTTPURLResponse *response, id JSON) { NSLog(@"Success :%@", JSON); } failure:^(NSURLRequest *request, NSHTTPURLResponse *response, NSError *error, id JSON) {

52. NSURL *URL = [NSURL URLWithString:@"http://httpbin.org/get"]; NSURLRequest *request = [NSURLRequest requestWithURL:URL];

    AFJSONRequestOperation *operation = [AFJSONRequestOperation JSONRequestOperationWithRequest:request success:^(NSURLRequest *request, NSHTTPURLResponse *response, id JSON) { NSLog(@"Success :%@", JSON); } failure:^(NSURLRequest *request, NSHTTPURLResponse *response, NSError *error, id JSON) { NSLog(@"Failure: %@", error); }];

53. NSURL *URL = [NSURL URLWithString:@"http://httpbin.org/get"]; NSURLRequest *request = [NSURLRequest requestWithURL:URL];

    AFJSONRequestOperation *operation = [AFJSONRequestOperation JSONRequestOperationWithRequest:request success:^(NSURLRequest *request, NSHTTPURLResponse *response, id JSON) { NSLog(@"Success :%@", JSON); } failure:^(NSURLRequest *request, NSHTTPURLResponse *response, NSError *error, id JSON) { NSLog(@"Failure: %@", error); }]; [operation start];
54. None

55. NSURL *URL = [NSURL URLWithString:@"http://example.com/avatar.jpg"];

56. NSURL *URL = [NSURL URLWithString:@"http://example.com/avatar.jpg"]; [cell.imageView setImageWithURL:URL placeholderImage:[UIImage imageNamed:@"placeholder"]];

57. AFURLConnectionOperation AFHTTPRequestOperation JSON XML plist Image

58. AFURLConnectionOperation AFHTTPRequestOperation JSON XML plist Image AFHTTPClient

59. AFHTTPClient • Designed to Work for Single Endpoint • Set

    Default Headers • Authorization, Accept, Accept-Language, etc. • Encode Parameters to Query String or Message Body • Handle Multipart Form Request Body Construction • Manage Request Operations • Enqueue Operations in Batches

60. •Create NSURLRequest •Create AFHTTPRequestOperation •Enqueue Operations

61. Extremely Subclassable

62. None

63. •Create NSURLRequest -requestWithMethod:path:parameters

64. •Create NSURLRequest -requestWithMethod:path:parameters •Create AFHTTPRequestOperation -HTTPRequestOperationWithRequest: success:failure

65. •Create NSURLRequest -requestWithMethod:path:parameters •Create AFHTTPRequestOperation -HTTPRequestOperationWithRequest: success:failure •Enqueue Operations -enqueueHTTPRequestOperation:

66. Shared Singleton Pattern

67. + (AFTwitterAPIClient *)sharedClient { static AFTwitterAPIClient *_sharedClient = nil; static

    dispatch_once_t onceToken; dispatch_once(&onceToken, ^{ _sharedClient = [[AFTwitterAPIClient alloc] initWithBaseURL:[NSURL URLWithString:kAFTwitterAPIBaseURLString]]; }); return _sharedClient; }

68. NSString *path = @"statuses/public_timeline.json"; [[AFTwitterAPIClient sharedClient] getPath:path parameters:nil success:... failure:...];

69. Demo

70. AFURLConnectionOperation AFHTTPRequestOperation JSON XML plist Image AFHTTPClient

71. AFURLConnectionOperation AFHTTPRequestOperation JSON XML plist Image AFHTTPClient

72. AFURLConnectionOperation AFHTTPRequestOperation JSON XML plist Image AFHTTPClient Collection +JSON

73. UIKit Extensions AFURLConnectionOperation AFHTTPRequestOperation JSON XML plist Image AFHTTPClient Collection

    +JSON

74. UIKit Extensions AFURLConnectionOperation AFHTTPRequestOperation JSON XML plist Image AFHTTPClient OAuth

    Collection +JSON

75. UIKit Extensions AFURLConnectionOperation AFHTTPRequestOperation JSON XML plist Image AFHTTPClient OAuth

    Collection +JSON S3

76. AFNetworking Ecosystem • AFOAuth1Client & AFOAuth2Client • AFAmazonS3Client • AFDownloadRequestOperation

    • AFIncrementalStore • AFKissXMLRequestOperation • AFCollectionJSONRequestOperation • AFHTTPRequestOperationLogger

77. AFFuture • Working Towards 1.0 • AFIncrementalStore • More Examples

    & Documentation • Modular CocoaPods Specification

78. AFIncrementalStore The “Holy Grail” of Networked Apps

79. Core Data

80. + Networking Core Data

81. Core Data

82. None

83. NSManagedObjectContext

84. NSPersistentStoreCoordinator NSManagedObjectContext

85. NSPersistentStoreCoordinator NSManagedObjectContext NSPersistentStore

86. NSPersistentStoreCoordinator NSManagedObjectContext NSSQLiteStore AFIncrementalStore

87. •NSFetchRequest •Attribute Faults •Relationship Faults

88. Rack::CoreData Generate REST API Scaffold from Core Data

89. None

90. GET /companies POST /suppliers PUT /customers/:id GET /country/:id/companies

91. Demo

92. How You Can Help • Documentation & Guides • Especially

    non-English • Pitch In on Stack Overflow • Issues • Pull Requests

93. @mattt

94. What I Learned From AFNetworking's GitHub Issues Mattt Thompson CocoaConf

    Columbus 2012

95. Thanks!