BB Standard iOS App API Wrapper. Direct questions to Brayden.

gistfile1.m

@interface APIWrapper : NSObject

@property (nonatomic, strong) NSArray *categories;
@property (nonatomic, assign) NSInteger loadingCount;

+ (void)apiEndpoint:(NSString *)endpoint completionBlock:(void (^)(NSDictionary *dictionary, NSError *error))completion;
+ (APIWrapper *)sharedManager;

@end









#import "APIWrapper.h"

@implementation APIWrapper

+ (void)apiEndpoint:(NSString *)endpoint completionBlock:(void (^)(NSDictionary *dictionary, NSError *error))completion {
    NSOperationQueue *queue = [[NSOperationQueue alloc] init];
    queue.maxConcurrentOperationCount = NSOperationQueueDefaultMaxConcurrentOperationCount;
    [queue setName:@"com.brandingbrand.api"];
    
    NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:[NSURL URLWithString:[NSString stringWithFormat:@"%@%@", BASE_URL, endpoint]]];
    [request setValue:@"XMLHttpRequest" forHTTPHeaderField:@"X-Requested-With"];
    [request setTimeoutInterval:15.0f];

    [[APIWrapper sharedManager] setLoadingCount:[[APIWrapper sharedManager] loadingCount] + 1];
    [NSURLConnection sendAsynchronousRequest:request queue:queue completionHandler:^(NSURLResponse *resposne, NSData *data, NSError *error) {
        if(data != nil) {
            NSError *jsonError;
            NSDictionary *dictionary = [NSJSONSerialization JSONObjectWithData:data options:NSJSONReadingAllowFragments error:&jsonError];
            
            dispatch_async(dispatch_get_main_queue(), ^{
                completion(dictionary, nil);
            });
        } else {
            NSLog(@"API Error: %@", error.description);
        }
        
        [[APIWrapper sharedManager] setLoadingCount:[[APIWrapper sharedManager] loadingCount] - 1];
    }];
}




#pragma mark - Singleton Setup -

+ (APIWrapper *)sharedManager {
  static APIWrapper *sharedManager;
	static dispatch_once_t token = 0;
	
	dispatch_once(&token, ^{
		sharedManager = [[APIWrapper alloc] init];
	});
    
	return sharedManager;
}

- (id)init {
    if (self = [super init]) {
        self.categories = [[NSArray alloc] init];
    }
    
    return self;
}




#pragma mark - Setter Methods -

- (void)setLoadingCount:(NSInteger)loadingCount {
    _loadingCount = loadingCount;
    
    if(loadingCount > 0)
        [UIApplication sharedApplication].networkActivityIndicatorVisible = YES;
    else
        [UIApplication sharedApplication].networkActivityIndicatorVisible = NO;
}

@end