AFNetworking is a delightful networking library for iOS and Mac OS X. It's built on top of NSURLConnection, NSOperation, and other familiar Foundation technologies. It has a modular architecture with well-designed, feature-rich APIs that are a joy to use. For example, here's how easy it is to get JSON from a URL:

NSURL *url = [NSURL URLWithString:@"https://alpha-api.app.net/stream/0/posts/stream/global"];
NSURLRequest *request = [NSURLRequest requestWithURL:url];
AFJSONRequestOperation *operation = [AFJSONRequestOperation JSONRequestOperationWithRequest:request success:^(NSURLRequest *request, NSHTTPURLResponse *response, id JSON) {
    NSLog(@"App.net Global Stream: %@", JSON);
} failure:nil];
[operation start];

Perhaps the most important feature of all, however, is the amazing community of developers who use and contribute to AFNetworking every day. AFNetworking powers some of the most popular and critically-acclaimed apps on the iPhone, iPad, and Mac.

Choose AFNetworking for your next project, or migrate over your existing projects—you'll be happy you did!

How To Get Started

Download AFNetworking and try out the included Mac and iPhone example apps
Read the "Getting Started" guide, FAQ, or other articles in the wiki
Check out the complete documentation for a comprehensive look at the APIs available in AFNetworking
Watch the NSScreencast episode about AFNetworking for a quick introduction to how to use it in your application
Questions? Stack Overflow is the best place to find answers

Overview

AFNetworking is architected to be as small and modular as possible, in order to make it simple to use and extend.

Core
AFURLConnectionOperation	An `NSOperation` that implements the `NSURLConnection` delegate methods.
HTTP Requests
AFHTTPRequestOperation	A subclass of `AFURLConnectionOperation` for requests using the HTTP or HTTPS protocols. It encapsulates the concept of acceptable status codes and content types, which determine the success or failure of a request.
AFJSONRequestOperation	A subclass of `AFHTTPRequestOperation` for downloading and working with JSON response data.
AFXMLRequestOperation	A subclass of `AFHTTPRequestOperation` for downloading and working with XML response data.
AFPropertyListRequestOperation	A subclass of `AFHTTPRequestOperation` for downloading and deserializing objects with property list response data.
HTTP Client
AFHTTPClient	Captures the common patterns of communicating with an web application over HTTP, including: <ul> <li>Making requests from relative paths of a base URL</li> <li>Setting HTTP headers to be added automatically to requests</li> <li>Authenticating requests with HTTP Basic credentials or an OAuth token</li> <li>Managing an <tt>NSOperationQueue</tt> for requests made by the client</li> <li>Generating query strings or HTTP bodies from an <tt>NSDictionary</tt></li> <li>Constructing multipart form requests</li> <li>Automatically parsing HTTP response data into its corresponding object representation</li> <li>Monitoring and responding to changes in network reachability</li> </ul> </td>
Images
AFImageRequestOperation	A subclass of `AFHTTPRequestOperation` for downloading and processing images.
UIImageView+AFNetworking	Adds methods to `UIImageView` for loading remote images asynchronously from a URL.

Example Usage

XML Request

NSURLRequest *request = [NSURLRequest requestWithURL:[NSURL URLWithString:@"http://api.flickr.com/services/rest/?method=flickr.groups.browse&api_key=b6300e17ad3c506e706cb0072175d047&cat_id=34427469792%40N01&format=rest"]];
AFXMLRequestOperation *operation = [AFXMLRequestOperation XMLParserRequestOperationWithRequest:request success:^(NSURLRequest *request, NSHTTPURLResponse *response, NSXMLParser *XMLParser) {
  XMLParser.delegate = self;
  [XMLParser parse];
} failure:nil];
[operation start];

Image Request

UIImageView *imageView = [[UIImageView alloc] initWithFrame:CGRectMake(0.0f, 0.0f, 100.0f, 100.0f)];
[imageView setImageWithURL:[NSURL URLWithString:@"http://i.imgur.com/r4uwx.jpg"] placeholderImage:[UIImage imageNamed:@"placeholder-avatar"]];

API Client Request

// AFAppDotNetAPIClient is a subclass of AFHTTPClient, which defines the base URL and default HTTP headers for NSURLRequests it creates
[[AFAppDotNetAPIClient sharedClient] getPath:@"stream/0/posts/stream/global" parameters:nil success:^(AFHTTPRequestOperation *operation, id JSON) {
    NSLog(@"App.net Global Stream: %@", JSON);
} failure:nil];

File Upload with Progress Callback

NSURL *url = [NSURL URLWithString:@"http://api-base-url.com"];
AFHTTPClient *httpClient = [[AFHTTPClient alloc] initWithBaseURL:url];
NSData *imageData = UIImageJPEGRepresentation([UIImage imageNamed:@"avatar.jpg"], 0.5);
NSMutableURLRequest *request = [httpClient multipartFormRequestWithMethod:@"POST" path:@"/upload" parameters:nil constructingBodyWithBlock: ^(id <AFMultipartFormData>formData) {
    [formData appendPartWithFileData:imageData name:@"avatar" fileName:@"avatar.jpg" mimeType:@"image/jpeg"];
}];

AFHTTPRequestOperation *operation = [[AFHTTPRequestOperation alloc] initWithRequest:request];
[operation setUploadProgressBlock:^(NSUInteger bytesWritten, long long totalBytesWritten, long long totalBytesExpectedToWrite) {
    NSLog(@"Sent %lld of %lld bytes", totalBytesWritten, totalBytesExpectedToWrite);
}];
[httpClient enqueueHTTPRequestOperation:operation];

Streaming Request

NSURLRequest *request = [NSURLRequest requestWithURL:[NSURL URLWithString:@"http://localhost:8080/encode"]];

AFHTTPRequestOperation *operation = [[AFHTTPRequestOperation alloc] initWithRequest:request];
operation.inputStream = [NSInputStream inputStreamWithFileAtPath:[[NSBundle mainBundle] pathForResource:@"large-image" ofType:@"tiff"]];
operation.outputStream = [NSOutputStream outputStreamToMemory];
[operation start];

Requirements

AFNetworking 1.0 and higher requires either iOS 5.0 and above, or Mac OS 10.7 (64-bit with modern Cocoa runtime) and above.

For compatibility with iOS 4.3, use the latest 0.10.x release.

ARC

AFNetworking uses ARC as of its 1.0 release.

If you are using AFNetworking 1.0 in your non-arc project, you will need to set a -fobjc-arc compiler flag on all of the AFNetworking source files. Conversely, if you are adding a pre-1.0 version of AFNetworking, you will need to set a -fno-objc-arc compiler flag.

To set a compiler flag in Xcode, go to your active target and select the "Build Phases" tab. Now select all AFNetworking source files, press Enter, insert -fobjc-arc or -fno-objc-arc and then "Done" to enable or disable ARC for AFNetworking.

Credits

AFNetworking was created by Scott Raymond and Mattt Thompson in the development of Gowalla for iPhone.

AFNetworking's logo was designed by Alan Defibaugh.

And most of all, thanks to AFNetworking's growing list of contributors.

Contact

Follow AFNetworking on Twitter (@AFNetworking)

Creators

Mattt Thompson
@mattt

Scott Raymond
@sco

License

AFNetworking is available under the MIT license. See the LICENSE file for more info.

License

thehtb/AFNetworking

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