Twitter API for Cocoa developers

Created by Nathaniel Symer

FHSTwitterEngine can:

• Authenticate using OAuth and/or xAuth.
• Make a request to just about every API endpoint.

Why you should use FHSTwitterEngine:

• Single .h/.m pair
• No dependencies
• Shared instance
• Scientific

This project started with OAuthConsumer.

Setup

Manual

1. Add FHSTwitterEngine.h and FHSTwitterEngine.m to your project
2. Link against SystemConfiguration.framework
3. Enable ARC for both files if applicable

Usage

Add import where necessary

#import "FHSTwitterEngine.h"

Set up FHSTwitterEngine

[[FHSTwitterEngine sharedEngine]permanentlySetConsumerKey:@"<consumer_key>" andSecret:@"<consumer_secret>"];

Or with a temporary consumer that gets cleared after each request

[[FHSTwitterEngine sharedEngine]temporarilySetConsumerKey:@"<consumer_key>" andSecret:@"<consumer_secret>"];

Set access token delegate (see header)

[[FHSTwitterEngine sharedEngine]setDelegate:myDelegate];

Login via OAuth:

UIViewController *loginController = [[FHSTwitterEngine sharedEngine]loginControllerWithCompletionHandler:^(BOOL success) {
    NSLog(success?@"L0L success":@"O noes!!! Loggen faylur!!!");
}];
[self presentViewController:loginController animated:YES completion:nil];

Login via XAuth:

dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^{
    @autoreleasepool {
        NSError *error = [[FHSTwitterEngine sharedEngine]getXAuthAccessTokenForUsername:@"<username>" password:@"<password>"];
        // Handle error
        dispatch_sync(dispatch_get_main_queue(), ^{
            @autoreleasepool {
                // Update UI
            }
        });
    }
});

Clear the current consumer key

[[FHSTwitterEngine sharedEngine]clearConsumer];

Load a saved access_token (called when API calls are made):

[[FHSTwitterEngine sharedEngine]loadAccessToken];

Clear your access token:

[[FHSTwitterEngine sharedEngine]clearAccessToken];

Check if a session is valid:

[[FHSTwitterEngine sharedEngine]isAuthorized];

Do an API call (POST and GET):

dispatch_async((dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^{
    @autoreleasepool {
        id twitterData = [[FHSTwitterEngine sharedEngine]postTweet:@"Hi!"];
        // Handle twitterData (see "About GET Requests")
        dispatch_sync(dispatch_get_main_queue(), ^{
            @autoreleasepool {
                // Update UI
            }
        });
    }
});

The "Singleton" Pattern

The singleton pattern allows the programmer to use the library across scopes without having to manually keep a reference to the FHSTwitterEngine object. When the app is killed, any memory used by FHSTwitterEngine is freed.

Threading

While you can use any threading technology for threading, I recommend Grand Central Dispatch (GCD).

General Comments

FHSTwitterEngine will attempt to preemptively detect errors in your requests, before they are actually sent. This includes missing parameters, and a lack of authorization. If FHSTwitterEngine detects that a user is not logged in, it will attempt to load an access token using its delegate. This process is designed to prevent bad requests from being needlessly sent.

About requests

Most methods return id. The returned object can be a(n):

• NSMutableDictionary
• NSMutableArray
• UIImage
• NSString
• NSError
• nil

Contact

• Open an issue
• Daniel Khamsing
• Nathaniel Symer