I've been having issues the past couple of days using LinkedIn Invitation API. I am using the OAuth sample client here - https://github.com/synedra/LinkedIn-OAuth-Sample-Client

Am able to successfully post a share using your example in OAuthLoginView. However am unable to use the invitations API to post a message. I've pasted the code am using below.

NSURL *url = [NSURL URLWithString:@"http://api.linkedin.com/v1/people/~/mailbox"];

OAMutableURLRequest *request =

[[OAMutableURLRequest alloc] initWithURL:url

consumer:oAuthLoginView.consumer

token:oAuthLoginView.accessToken

callback:nil

signatureProvider:nil];

[request setHTTPMethod:@"POST"];

NSString *messageToPerson = @"/people/email=cyrille.denervaux@gmail.com";

//[NSString stringWithFormat:@"/people/%@",@"2025681"];

NSDictionary *person = [[NSDictionary alloc] initWithObjectsAndKeys:[[[NSDictionary alloc] initWithObjectsAndKeys:messageToPerson,@"_path",@"Cyrille",@"first-name",@"de Nervaux",@"last-name",nil] autorelease], @"person",nil]; //me: TuIMe113ZF

NSArray *valueArray = [[NSArray alloc] initWithObjects:person,nil];

NSDictionary *values = [[NSDictionary alloc] initWithObjectsAndKeys:valueArray,@"values", nil];

NSDictionary *ir = [[NSDictionary alloc] initWithObjectsAndKeys:[[[NSDictionary alloc] initWithObjectsAndKeys:@"friend",@"connect-type",nil] autorelease], @"invitation-request",nil];

NSDictionary *ic = [[NSDictionary alloc] initWithObjectsAndKeys:ir,@"item-content", nil];

NSDictionary *update = [[NSDictionary alloc] initWithObjectsAndKeys:values,@"recipients",@"Invitation",@"subject",@"ConnectWithMe",@"body", ir, @"item-content", nil];

[request setValue:@"application/json" forHTTPHeaderField:@"Content-Type"];

[request setValue:@"json" forHTTPHeaderField:@"x-li-format"];

NSString *updateString = [update JSONString];

[request setHTTPBodyWithString:updateString];

NSLog(updateString);

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

[fetcher fetchDataWithRequest:request

delegate:self

didFinishSelector:@selector(postUpdateApiCallResult:didFinish:)

didFailSelector:@selector(postUpdateApiCallResult:didFail:)];

[update release];

[values release];

[valueArray release];

[person release];

[request release];

I get the following response:

<?xml version="1.0" encoding="UTF-8" standalone="yes"?>

<error>

<status>401</status>

<timestamp>1328781555736</timestamp>

<request-id>5NMOQ1PDZR</request-id>

<error-code>0</error-code>

<message>[unauthorized]. OAU:rb1llp99ymv5|ac6b144f-0c2f-4378-af58-01fd564dd512|*01|*01:1328781530:l2WRgGGSR1Ap6SF+xdSsMSZiV60=</message>

</error>

Any idea on what is going wrong? Any pointers or sample you could provide for the invitations API would help us a lot.

Thanks,
Karthik.