CloudSight API library for Objective-C
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CloudSight API library for Objective-C. Extracted from CamFind-iOS.

Installation with CocoaPods

CocoaPods is a dependency manager for Objective-C, which automates and simplifies the process of using 3rd-party libraries like CloudSight in your projects.


pod "CloudSight", "~> 1.0"


Configure the instance

The CloudSight library uses the OAuth1 authentication method to the API. Make sure your key and secret are set.

[CloudSightConnection sharedInstance].consumerKey = @"your-key";
[CloudSightConnection sharedInstance].consumerSecret = @"your-secret";

Using the query object

The easiest way to use the API is to use a Query object to handle the request/response workflow work for you.

@interface ViewController ()
@property (nonatomic, retain) CloudSightQuery *query;

- (void)searchWithImage:(UIImage *)image {
    NSString *deviceIdentifier = nil;  // This can be any unique identifier per device, and is optional - we like to use UUIDs
    CLLocation *location = nil; // you can use the CLLocationManager to determine the user's location

    // We recommend sending a JPG image no larger than 1024x1024 and with a 0.7-0.8 compression quality,
    // you can reduce this on a Cellular network to 800x800 at quality = 0.4
    NSData *imageData = UIImageJPEGRepresentation(image, 0.7);

    // Create the actual query object
    self.query = [[CloudSightQuery alloc] initWithImage:imageData

    // Start the query process
    [self.query start];

#pragma mark CloudSightQueryDelegate

- (void)cloudSightQueryDidFinishIdentifying:(CloudSightQuery *)query {
    if (query.skipReason != nil) {
        NSLog(@"Skipped: %@", query.skipReason);
    } else {
        NSLog(@"Identified: %@", query.title);

- (void)cloudSightQueryDidFail:(CloudSightQuery *)query withError:(NSError *)error {
    NSLog(@"Error: %@", error);


There's a working Obj-C example that you can run by opening Example-objc/CloudSightExample.xcworkspace in XCode.


CloudSight is released under the MIT license.