Everybody Loves AFNetworking ... and So Can you!

transcript

Everybody Loves AFNetworking

...and So Can You!

Mattt ThompsonHeroku

@mattt

AFURLConnectionOperation

AFHTTPRequestOperation

JSON XML plist Image

NSURLConnection+

NSOperation

NSURLConnection

• High-Level Networking API

• Delegate-based Callbacks

URL Loading System

• URL Loading

• NSURLConnection

• NSURLRequest

• NSURLResponse

• Caching

• NSURLCache

• NSURLCacheResponse

• Authentication & Credentials• NSURLCredential

• NSURLAuthenticationChallenge

• Cookies• NSHTTPCookie

• Protocols• NSProtocol

NSURLConnection Delegate Methods

- connection:didReceiveResponse:

- connection:didReceiveData:

- connectionDidFinishLoading:

- connection:didFailWithError:

- connection:willCacheResponse:

NSOperation

• Atomic Unit of Computation

• Concurrently executed in NSOperationQueue

• Encapsulates State

• started, executing, finished

• Cancelable

• Completion Blocks

• NSOperation Subclass

• Implements NSURLConnection Delegate Methods

• Supports Streaming Uploads / Downloads

• Stores Request, Response, Data

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];

• AFURLConnectionOperation Subclass

• Adds Knowledge Specific to HTTP

• Status Codes

• MIME Types

• Adds Success / Failure Distinction

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

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];

Operations should encapsulate everything it

takes to get what you want

Success / Failure

JSON XML Image

Status Code

Content Type

2XX 2XX 2XX

application/jsontext/json

text/javascriptapplication/xml

text/xml

image/tiffimage/jpegimage/gifimage/png

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

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];

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

[cell.imageView setImageWithURL:URL placeholderImage:[UIImage imageNamed:@"placeholder"]];

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

•Create NSURLRequest

•Create AFHTTPRequestOperation

•Enqueue Operations

UIKit Extensions

JSON XML plist ImageA

Collection+JSON

AFNetworking Ecosystem

• AFOAuth1Client & AFOAuth2Client

• AFAmazonS3Client

• AFDownloadRequestOperation

• AFIncrementalStore

• AFKissXMLRequestOperation

• AFCollectionJSONRequestOperation

• AFHTTPRequestOperationLogger

AFFuture

• Working Towards 1.0

• AFIncrementalStore

• More Examples & Documentation

• Modular CocoaPods Specification

How You Can Help

• Documentation & Guides

• Especially non-English

• Pitch In on Stack Overflow

• Issues

• Pull Requests

Thanks!

Everybody Loves AFNetworking ... and So Can you!

Documents