I have been banging my head against a brick wall for about a day now.

All i want to do is actually connect to the ebay API using curl , i have managed to retrieve a security token, but when i try to use it to do a call to https://api.ebay.com/post-order/v2/cancellation/search i get a 302 error.

My Code is below:

 $cSession = curl_init();
 
 $clientId="IXXXXXXXXXXXXXXX";
 
 $clientSecret="XXXXXXXXXXXXXXXXX";
 
 $ContentType = "application/x-www-form-urlencoded";
 
 $Authorization ="Basic ".base64_encode($clientId.":".$clientSecret);
 
 $redirectUri = "XXXXXXXXXXXXXXX";
 $grantType = "client_credentials";
 
 
 $scope = "https://api.ebay.com/oauth/api_scope"; 
 
 $headers =[
     "Content-Type: $ContentType",
     "Authorization: $Authorization"
 ];
 
 $post = [
     'grant_type'    => $grantType,
     'redirect_uri'    => $redirectUri,
     'scope'            => $scope
 ];
 
 
 curl_setopt($cSession, CURLOPT_URL,"https://api.ebay.com/identity/v1/oauth2/token");
 curl_setopt($cSession, CURLOPT_HTTPHEADER,    $headers);
 curl_setopt($cSession, CURLOPT_POST,1);
 curl_setopt($cSession, CURLOPT_RETURNTRANSFER,1);
 curl_setopt($cSession, CURLOPT_POSTFIELDS,    http_build_query($post));
 
 
 $result=curl_exec($cSession);
 $result = json_decode($result);
 curl_close($cSession);
 
 $headers2 = [
     'Authorization'    => 'Bearer '.$result->access_token,
     'X-EBAY-C-MARKETPLACE-ID' => 'EBAY_US',
     'Content-Type' => 'application/json',
     'Accept' => 'application/json'
 ];
 
 $curl = curl_init();
 curl_setopt_array($curl, array(
     CURLOPT_RETURNTRANSFER => 1,
     CURLOPT_HTTPHEADER => $headers2,
     CURLOPT_HEADER => 1,
     CURLOPT_URL => 'https://api.ebay.com/post-order/v2/cancellation/search'
 ));
 $result2 = curl_exec($curl);
 var_dump($result2);
 

any help would be greatly appreciated.