如何使用vimeo advance api

我正在使用vimeo advance api来搜索视频，例如在youtube和日常动作中查询 . vimeo advance api需要oauth身份验证 . 我希望vimeo像vimeo游乐场一样让我回归json . https://developer.vimeo.com/apis/advanced/methods/vimeo.videos.search/playground . 我写下面的代码来获取json数据，但不知道我是谁获得了json数据

- (void)viewDidLoad
{
    [super viewDidLoad];
    SBJsonParser *json = [[SBJsonParser alloc]init];
    // Do any additional setup after loading the view, typically from a nib.

    OAConsumer *consumer = [[OAConsumer alloc] initWithKey:@"0c5e6dd9b8fa5f8d91563332da03912ac8c2e15d"
                                                    secret:@"744eb15d911ee3607f7006f1f4ad7eb17a94eec6"];

    NSURL *url = [NSURL URLWithString:@"https://vimeo.com/oauth/request_token"];


    OAMutableURLRequest *request = [[OAMutableURLRequest alloc] initWithURL:url
                                                                   consumer:consumer
                                                                      token:nil
                                                                      realm:nil
                                                          signatureProvider:nil];

 [request setParameters: [NSArray arrayWithObjects: [[OARequestParameter alloc] initWithName: @"oauth_callback" value: @"http://vimeo.com/api/rest/v2?format=json&method=vimeo.videos.search&qdfduery=amir+khan"] ,nil]];

    [request setHTTPMethod:@"GET"];

   OADataFetcher *fetcher = [[OADataFetcher alloc] init];

    [fetcher fetchDataWithRequest:request

                         delegate:self

                didFinishSelector:@selector(requestTokenTicket:didFinishWithData:)

                  didFailSelector:nil];



}


- (void)requestTokenTicket:(OAServiceTicket *)ticket didFinishWithData:(NSData *)data {
    if (ticket.didSucceed)
    {




    NSString *responseBody = [[NSString alloc] initWithData:data
                                                    encoding:NSUTF8StringEncoding];
      OAToken *requestToken = [[OAToken alloc] initWithHTTPResponseBody:responseBody];
        NSLog(@"data %@",requestToken);

        OAMutableURLRequest *request;

        if (self.accessToken != nil) {
            self.accessToken = nil;
        }

        self.accessToken = [[OAToken alloc] initWithHTTPResponseBody:responseBody];
       NSLog(@"access token key %@",self.accessToken.key) ;
        NSLog(@"access token secret %@",self.accessToken.secret) ;
        NSURL *url = [NSURL URLWithString:@"https://vimeo.com/oauth/authorize"];
        OAConsumer *consumer = [[OAConsumer alloc] initWithKey:self.accessToken.key
                                                        secret:self.accessToken.secret];

        request = [[OAMutableURLRequest alloc] initWithURL:url
                                                  consumer:consumer
                                                     token:self.accessToken
                                                     realm:nil
                                         signatureProvider:nil];

        OARequestParameter *p0 = [[OARequestParameter alloc] initWithName:@"oauth_token" value:self.accessToken.key];
        NSArray *params = [NSArray arrayWithObject:p0];
        [request setParameters:params];
        [webView loadRequest:request];
        NSLog(@"request %@",request);



           }
}

上面的代码返回我的访问令牌 . 但我不知道如何使用该访问令牌来获取像vimeo游乐场中的json . 亲切的任何人为我完成它我很困惑因为在vimeo网站上他们没有正确的指导我如何使用advance api