freunde.ma-nic.de
if (empty($fetchResult)) {
throw new ReferenceStorageException(sprintf('External resource failed to get %s', $reference));
} else {
throw new ReferenceStorageException(sprintf('External resource failed to get %s', $reference), $fetchResult->getReturnCode(), new Exception($fetchResult->getBody()));
}
Also with a lot of help by @Hank G ☑️ the API currently is massively extended. So I suggest to focus more on the Mastodon endpoints and to request extensions there.