How to read HTTP Response values from Visualforce correctly?

Question

I'm calling an external site from Visualforce and it's returning me a response as below (i.e. HttpResponse.GetBody() returned sting).

<DtResponse RequestId="" ResultCount="1" ErrorMessage=""> <Result TemporaryKey="**SecretTempKeyValue***==" /> </DtResponse> 

I can read it by using string functions which is not a good method. I need to read this without using string functions. What is the best method to read the Temporary Key field in HTTP Response body?

Any help with a simple code example would be great. Thanks.

Answer 1

You can use getBodyDocument instead, which would look like this:

Dom.Document doc = response.getBodyDocument();
String tempKey = doc.getRootElement()
                  .getChildElement('Result', null)
                  .getAttribute('TemporaryKey', null);