Issue with OAuth authentication for the new Basecamp Api using OAConsumer - ios

Question

My code looks something like this :
OAConsumer *consumer = [[OAConsumer alloc] initWithKey:#"my_ClientID"
secret:#"my_Secret"];
NSURL *url = [NSURL URLWithString:#"https://launchpad.37signals.com/authorization/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 setHTTPMethod:#"POST"];
NSLog(#"USER URL : %#",[request URL]);
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 {
if (ticket.didSucceed) {
NSString *responseBody = [[NSString alloc] initWithData:data
encoding:NSUTF8StringEncoding];
OAToken *requestToken = [[OAToken alloc] initWithHTTPResponseBody:responseBody];
NSLog(#"%#",requestToken);
}
}
My Delegate method never gets a (ticket.didSucceed) Success.
Can someone tell me what I am missing here?
Thanks

Answer 1

It looks like you are trying to have the user authorize your app and generate the token for the first time. For this, you're using the wrong URL. From the 37Signals API:
Your app requests authorization by redirecting your user to Launchpad:
https://launchpad.37signals.com/authorization/new?type=web_server&client_id=your-client-id&redirect_uri=your-redirect-uri
The URL you are using is for getting the access token from the verification code.