gistfile1.m

 NSURL *url = [NSURL URLWithString:@"http://localhost:3000/users/sign_in.json"];
        NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:url];
        [request setHTTPMethod:@"POST"];
        NSString *postString = @"user[email][email protected]&user[password]=halo123123";
        [request setHTTPBody:[postString dataUsingEncoding:NSUTF8StringEncoding]];
        AFJSONRequestOperation *operation = [AFJSONRequestOperation JSONRequestOperationWithRequest:request success:^(NSURLRequest *request, NSHTTPURLResponse *response, id JSON) {
            
                NSString *status = [JSON valueForKeyPath:@"success"];
                NSLog(@"status = %@", status);
            
                if(status){
                    token = [JSON valueForKeyPath:@"token"];
                    NSLog(@"%@", token);
                    NSString *stringurl = (@"http://localhost:3000/user/getroomlist?token=%@", token);
                    NSURL *url2 = [NSURL URLWithString:stringurl];
                    NSURLRequest *request2 = [NSURLRequest requestWithURL:url2];
                    AFJSONRequestOperation *operation2 = [AFJSONRequestOperation JSONRequestOperationWithRequest:request2 success:^(NSURLRequest *request, NSHTTPURLResponse *response, id JSON) {
                        
                        
                        NSString *success = nil;
                        NSArray *rooms = nil;
                        
                        rooms =  [JSON objectForKey:@"rooms"];
                        NSLog(@"%@", rooms);
                        
                        //yang sini udah ga kepanggil


                    } failure:nil];
                    [operation2 start];

                
                }

        } failure:nil];
        [operation start];