Account.m

#import "Account.h"
#import "JSONKit.h"

@implementation Account

@synthesize name = _name;
@synthesize accountId = _accountId;
@synthesize initial = _initial;
@synthesize code = _code;
@synthesize tastingHours = _tastingHours;
@synthesize abcNo = _abcNo;
@synthesize taxIdNo = _taxIdNo;
@synthesize deliveryRestrictions = _deliveryRestrictions;
@synthesize resaleNum = _resaleNum;
@synthesize website = _website;

#pragma mark - Networking
+ (void)findById:(NSInteger)accountId block:(void (^)(Account *account))block
{
  NSString *url = [[[NSString alloc] initWithFormat:@"/api/accounts/%d", accountId] autorelease];
  NSMutableDictionary *params = [[[NSMutableDictionary alloc] init] autorelease];
  
  [[AFVinosmithAPIClient sharedClient] getPath:url parameters:params
                                       success:^(AFHTTPRequestOperation *operation, id JSON) {
                                         JSONDecoder* decoder = [[JSONDecoder alloc]
                                                                 initWithParseOptions:JKParseOptionNone];
                                         
                                         NSDictionary *resultsDictionary = [decoder objectWithData:[operation responseData]];
                                         NSDictionary *attributes = [resultsDictionary objectForKey:@"account"];
                                         Account *account = [[Account alloc] initWithAttributes:attributes];

                                         [decoder release];
                                         if(block) {
                                           block(account);
                                         }
                                       } 
                                       failure:^(AFHTTPRequestOperation *operation, NSError *error) {
                                         NSLog(@"ERROR: %@", [operation responseString]);
                                       }
   ]; 
}

AccountViewController.m

@implementation AccountViewController

- (void) fetchAccount
{
  [Account findById:[self accountId] block:^(Account *account) {
    if(account) {
       // do something with your Account object
    }
  }];
}

@end