sampleYelpCall.m

#import "OAuthConsumer.h"
#import <YAJL/YAJL.h>
/**Mostly uses https://github.com/Yelp/yelp-api/tree/master/v2/ios/YelpAPI as the template, this is a snippet from a project that
imported theOAuthConsumer library and their YAJL Framework and disabled ARC on the entire OAuthConsumer library. 
In the end, this returns an NSDictionary* that contains the Yelp request output.
**/

-(IBAction)fetchYelp{
  NSURL *URL = [NSURL URLWithString:@"http://api.yelp.com/v2/search?term=restaurants&location=new%20york"];
    OAConsumer *consumer = [[OAConsumer alloc] initWithKey:@"CONSUMER_KEY" secret:@"CONSUMER_SECRET"];
    OAToken *token = [[OAToken alloc] initWithKey:@"TOKEN" secret:@"TOKEN_SECRET"] ;
    
    id<OASignatureProviding, NSObject> provider = [[OAHMAC_SHA1SignatureProvider alloc] init] ;
    NSString *realm = nil;
    
    OAMutableURLRequest *request = [[OAMutableURLRequest alloc] initWithURL:URL
                                                                   consumer:consumer
                                                                      token:token
                                                                      realm:realm
                                                          signatureProvider:provider];
    [request prepare];
    
    _responseData = [[NSMutableData alloc] init];
//    NSURLConnection *connection = [[NSURLConnection alloc] initWithRequest:request delegate:self];
   NSURLSessionTask* task = [[NSURLSession sharedSession] dataTaskWithRequest:request completionHandler:^(NSData *data, NSURLResponse *response, NSError *error){    _JSON = [data yajl_JSON];
        NSLog(@"%@",_JSON);
       [self performSelectorOnMainThread:@selector(updateStuff) withObject:self waitUntilDone:NO];
    }];
    
    [task resume];
}