Content deleted after ContentAsBytes?

BIZ TMS Sparkle
1
Hello,

I just disovered that after reading the content of a response it seems the content empties. After a simple get of an url to get an image I tried to read the data received. Accessing it the first time works fine, but the second read throws an exception. You can reproduce the behaviour with this code:

var
  FBytes : TArray<Byte>;
begin
  FResponse := FClient.Send(FRequest);
  FBytes := Copy(FResponse.ContentAsBytes); // first read
  FBytes := Copy(FResponse.ContentAsBytes); // second read - throws exception

Why is this? Is this a bug or by design?

Regards
Harald
2

Hello Harald,

It's by design. The content can only be read once, then it's up to you to save it somewhere. In this case, just read from FBytes.
3
Hello Wagner,
thank You. I thought so. That's why I did it with the copy-function. Is it similar with ContentAsStream? Do I have to copy the content in every way I access it?
Regards
Harald
4

Yes, in any way you read the content, it should be the only one (it's ready on-the-fly from the other side).