Writing a URL to an embed-field using PodioKit - objective-c

Question

I hope to find some help to diving deeper into Podiokit, the ObjC-API to Podio. I try to set a link-field's value to a URL. My first simple try looked like this:
NSDictionary *embedAttributes = [NSDictionary dictionaryWithObject: #"http://www.google.com" forKey: #"url"];
PKTEmbed *embed = [[PKTEmbed alloc] initWithDictionary: embedAttributes];
item[#"linkfield"] = embed;
I found an example using PHP but had no luck to transform it into Objective-C:
$attributes = array( 'url' => 'http://www.infranet.com' );
$embed = PodioEmbed::create( $attributes );
$attribute['embed']['embed\_id'] = $embed->embed\_id;
$attribute['file']['file\_id'] = $embed->files[0]->file\_id;
$this->orgItem->field('organizationlink')->set\_value($attribute);
Maybe someone knows how to get it right, would be fine :-)
[Edit] The PodioKit-Manual just says:
PKTEmbed *link = ...;
item[#"link"] = link;
[Edit 2] The error occurs when I try to save the item. The log says:
Error: Saving file Error Domain=com.alamofire.error.serialization.response Code=-1011 "Request failed: Ungültige Anforderung (400)" UserInfo=0x600000c7ee80 {com.alamofire.serialization.response.error.response=<NSHTTPURLResponse: 0x6000008358e0> { URL: https://api.podio.com/item/app/_xxxx_/ } { status code: 400, headers {
"Content-Length" = 263;
"Content-Type" = "application/json; charset=utf-8";
Date = "Sat, 27 Sep 2014 19:16:22 GMT";
Server = nginx;
"X-Podio-Request-Id" = yqyl6yku;
"X-Rate-Limit-Limit" = 250;
"X-Rate-Limit-Remaining" = 248;
} }, NSLocalizedDescription=Request failed: Ungültige Anforderung (400), NSErrorFailingURLKey=https://api.podio.com/item/app/_xxxx_/}
Thanks,
Michael / Hamburg

Answer 1

Sebastian at Podio here. You need to first create the PKTEmbed object server side, then use it as the value of the item field. So you would use:
PKTItem *item = ...;
[[PKTEmbed createEmbedForURLString:#"https://www.google.com"] onSuccess:^(PKTEmbed *embed) {
item[#"link-field"] = embed;
} onError:^(NSError *error) {
// Handle error
}];
The server will assign you an embedID and generate a thumbnail for you etc. I will look into adding the ability to simply provide a URL string directly, as I agree that makes a lot of sense.
Hope that helps!