Use cases and how everything works

You push code (or compiled code) to Objective-Cloud. This can be done by using git (for example via GitHub) or by uploading it manually to our servers. We then make your app logic available via RESTful web services which you can access via HTTP. You can also define blocks of code that are not exposed to the public but which are triggered automatically. Once code is pushed to Objective-Cloud, we scale it automatically according to your needs. We do provide an SDK which includes an Xcode template that you can use to get started; however, you don't have to use the SDK at all. Of course you can test your app locally before pushing it to Objective-Cloud.

Pricing

Examples

Apple's frameworks are very powerful. With Objective-Cloud you can use these frameworks (for example Core Image, Core Location, Core Audio, Core Video, Core Data, AV Foundation and PDK Kit) to develop useful webservices in the blink of an eye. Here are some ideas:

• Use CIDetector (Core Image) to detect faces in images.
• Use CLGeocoder (Core Location) to map locations to meaningful names.
• Use QTKit to work with audio/video files.
• Use PDF Kit to create beautiful PDF documents.
• Use NSURLConnection and WebKit/NSXML* to scrape webpages.

Searching in PDF Documents

// The response dictionary will be used to generate the HTTP response.
// This method downloads the PDF document and performs a text search
// by using the search token. The response dictionary contains the numbers of
// the pages that contain the search token. Each value in the dictionary
// is the corresponding result count.

+ (NSDictionary *)searchResultOfPDFDocumentAtURL:(NSString *)documentURLStringValue
	                             searchToken:(NSString *)searchToken
{
    NSURL *documentURL = [NSURL URLWithString:documentURLStringValue];
    PDFDocument *document = [[PDFDocument alloc] initWithURL:documentURL];
    NSArray *selections = [document findString:searchToken
                                   withOptions:NSCaseInsensitiveSearch];

    NSMutableDictionary *response = [NSMutableDictionary dictionary];

    for(PDFSelection *selection in selections)
    {
        PDFPage *page = selection.pages[0]; // get the first Page

        NSNumber *matchCount = response[page.label];

        if(matchCount == nil)
        {
            matchCount = @(1);
        }
        else
        {
            matchCount = @(matchCount.unsignedIntegerValue + 1);
        }
        response[page.label] = matchCount;
    }

    return response;
}

Face Detection

// The response dictionary will be used to generate the HTTP response.
+ (NSDictionary *)facesInImageAtURL:(NSString *)imageURLStringValue
{
    NSURL *imageURL = [NSURL URLWithString:imageURLStringValue];
    CIImage *image = [CIImage imageWithContentsOfURL:imageURL];
    NSDictionary *options = @{ CIDetectorAccuracy : CIDetectorAccuracyLow };

    CIDetector *detector = [CIDetector detectorOfType:CIDetectorTypeFace
                                              context:nil
                                              options:options];

    NSArray *faceFeatures = [detector featuresInImage:image
                                              options:nil];

    NSMutableArray *detectedFaces = [NSMutableArray array];
    for(CIFeature *faceFeature in faceFeatures)
    {
        [detectedFaces addObject:[faceFeature dictionaryRepresentation_obc]];
    }

    NSMutableDictionary *response = [NSMutableDictionary dictionary];
    response[@"detectedFaces"] = detectedFaces;

    return response;
}

Reverse Geocoding

// The returned string will be used to generate the HTTP response.
+ (NSString *)nameOfLocationAtLatitude:(NSNumber *)latitude 
                                 longitude:(NSNumber *)longitude
{
    CLLocationDegrees latitudeValue = [latitude doubleValue];
    CLLocationDegrees longitudeValue = [longitude doubleValue];

    CLLocation *location = [[CLLocation alloc] initWithLatitude:latitudeValue
                                                      longitude:longitudeValue];

    CLGeocoder *reverseGeocoder = [[CLGeocoder alloc] init];

    __block NSString *nameOfLocation = nil;
    dispatch_semaphore_t holdOn = dispatch_semaphore_create(0);

    [reverseGeocoder reverseGeocodeLocation:location
                          completionHandler:^(NSArray *placemarks, NSError *error)
     {
         CLPlacemark *placemark = [placemarks lastObject];
         if(placemark)
         {
             nameOfLocation = placemark.name;
         }
         dispatch_semaphore_signal(holdOn);
     }];

    dispatch_semaphore_wait(holdOn, DISPATCH_TIME_FOREVER);

    return nameOfLocation;
}