getting error while accessing vimeo advanced api - iphone

Question

i am getting this error in json format while fetching vimeo advanced search api this is the error
{"code":"401","expl":"The oauth_token passed has not been authorized by the user.","msg":"Invalid token"}}
this is my code for authentication on vimeo .
- (void)viewDidLoad
{
[super viewDidLoad];
// Do any additional setup after loading the view, typically from a nib.
consumer = [[OAConsumer alloc] initWithKey:#"xxxxxxxxxxxx"
secret:#"xxxxxxxxxxxx"];
NSURL *url = [NSURL URLWithString:#"https://vimeo.com/oauth/request_token"];
OAMutableURLRequest *request = [[OAMutableURLRequest alloc] initWithURL:url
consumer:consumer
token:nil // we don't have a Token yet
realm:nil // our service provider doesn't specify a realm
signatureProvider:nil]; // use the default method, HMAC-SHA1
[request setParameters: [NSArray arrayWithObjects: [[OARequestParameter alloc] initWithName: #"oauth_callback" value: #"http://iosdevelopertips.com/networking/iphone-json-flickr-tutorial-part-1.html"] ,nil]];
[request setHTTPMethod:#"GET"];
OADataFetcher *fetcher = [[OADataFetcher alloc] init];
[fetcher fetchDataWithRequest:request
delegate:self
didFinishSelector:#selector(requestTokenTicket:didFinishWithData:)
didFailSelector:#selector(requestTokenTicket:didFailWithError:)];
}
- (void)requestTokenTicket:(OAServiceTicket *)ticket didFinishWithData:(NSData *)data {
NSLog(#"ticket value %#",ticket);
if (ticket.didSucceed) {
NSString *responseBody = [[NSString alloc] initWithData:data
encoding:NSUTF8StringEncoding];
requestToken = [[OAToken alloc] initWithHTTPResponseBody:responseBody];
}
NSString *urlString = [NSString stringWithFormat:#"https://vimeo.com/oauth/authorize?auth_token=%#", requestToken.key];
NSURL *urlAuth = [NSURL URLWithString:urlString];
[[UIApplication sharedApplication] openURL:urlAuth];
NSURL *url = [NSURL URLWithString:#"http://vimeo.com/api/rest/v2?method=vimeo.videos.search"];
OAMutableURLRequest *request = [[OAMutableURLRequest alloc] initWithURL:url
consumer:consumer
token:requestToken
realm:nil
signatureProvider:[[OAHMAC_SHA1SignatureProvider alloc] init]];
OARequestParameter *nameParam = [[OARequestParameter alloc] initWithName:#"format"
value:#"json"];
OARequestParameter *descParam = [[OARequestParameter alloc] initWithName:#"query"
value:#"amir khan"];
NSArray *params = [NSArray arrayWithObjects:nameParam, descParam, nil];
[request setParameters:params];
OADataFetcher *fetcher = [[OADataFetcher alloc] init];
[fetcher fetchDataWithRequest:request
delegate:self
didFinishSelector:#selector(requestTokenTicket2:didFinishWithData:)
didFailSelector:#selector(requestTokenTicket2:didFinishWithData:)];
}
- (void)requestTokenTicket2:(OAServiceTicket *)ticket didFinishWithData:(NSData *)data
{
NSString *dataString = [[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding];
NSLog(#"data string %#",dataString);
}

Answer 1

The error message "The oauth_token passed has not been authorized by the user" means that you are using the request token, and not the access token.
The request token is the token you get before the user has authenticated with your app.
This token is used in building the url that you send your users to.
Once the user has approved your app on vimeo.com, they will be redirected to your app. At this time you should exchange your request token for an access token.