An anonymous Imgur image uploader.

ImgurAnonymousAPIClient requires AFNetworking 2 and either iOS 7.0 or OS X 10.9. On iOS 8 (and probably OS X 10.10), AFNetworking 2.3.1 or higher is required.

Usage

ImgurAnonymousAPIClient is flexible:

// Put your client ID in Info.plist first! Then…

NSURL *assetURL = info[UIImagePickerControllerReferenceURL];
[[ImgurAnonymousAPIClient client] uploadAssetWithURL:assetURL
                                            filename:nil
                                   completionHandler:^(NSURL *imgurURL, NSError *error) {
    // imgurURL is ready for you!
    // And the image was resized too, if needed.
    // Even the largest images work fine!
}];

// Or…

UIImage *image = info[UIImagePickerControllerEditedImage];
[[ImgurAnonymousAPIClient client] uploadImage:image
                                 withFilename:@"image.jpg"
                            completionHandler:^(NSURL *imgurURL, NSError *error) {
    // imgurURL is ready for you!
    // And the image was resized too, if needed.
}];

// Or…

NSURL *fileURLForSomeImage = ...;
[[ImgurAnonymousAPIClient client] uploadImageFile:fileURLForSomeImage
                                     withFilename:nil
                                completionHandler:^(NSURL *imgurURL, NSError *error) {
    // imgurURL is ready for you!
}];

// Or…

NSData *data = UIImageJPEGRepresentation(myImage, 0.9);
[[ImgurAnonymousAPIClient client] uploadImageData:data
                                     withFilename:@"image.jpg"
                                completionHandler:^(NSURL *imgurURL, NSError *error) {
    // imgurURL is ready for you!
}];

Installation

If you use CocoaPods, you can add to your Podfile:

pod 'ImgurAnonymousAPIClient', :git => 'https://github.com/nolanw/ImgurAnonymousAPIClient.git', :tag => 'v0.1.1'

Otherwise, the client is contained within the ImgurAnonymousAPIClient.h and ImgurAnonymousAPIClient.m files. Simply copy those two files into your project. You'll need to install AFNetworking as well (version 2.2.2 or higher), if you aren't using it already. Finally, be sure to link against ImageIO and either AssetsLibrary and MobileCoreServices (on iOS) or CoreServices (on OS X).

Once you're all set, you need an Imgur API client ID. This is a requirement for using the Imgur API, which is what ImgurAnonymousAPIClient uses. Be sure to register your application and get the client ID.

You have three options for specifying your client ID. The most convenient is to put it in your Info.plist for the key ImgurAnonymousAPIClientID:

// Uses client ID from Info.plist.
ImgurAnonymousAPIClient *client = [ImgurAnonymousAPIClient new];

// So does the convenient singleton.
[ImgurAnonymousAPIClient client];

Or create a client and give it the client ID:

[[ImgurAnonymousAPIClient alloc] initWithClientID:@"YOURIDHERE"];

Or set the client ID after the client is created:

[ImgurAnonymousAPIClient client].clientID = @"YOURIDHERE";

Alternatives

ImgurSession is a full-featured Imgur API client. It supports the full API, including logging in via OAuth2. It should be your first stop if ImgurAnonymousAPIClient doesn't do what you need.

Example

There's a functional (i.e. aesthetically displeasing and not very usable) example app for iOS in the Test App folder. It demonstrates several different ways to upload an image from the photo library, as well as how to cancel an upload in progress.

Why

Uploading to Imgur is handy, but handling all the possible errors is a huge pain. Plus resizing images to fit the maximum file size can get hairy. ImgurAnonymousAPIClient wraps it all up.