Yes, but if the Server is also sending additional text of the error where can I capture this in the situation of the GET e.g.
<?xml version="1.0" encoding="UTF-8"?>
<Error><Code>NoSuchKey</Code><Message>The specified key does not exist.</Message><Key>smC1842A51E22A05000000000000A386410000000100003J7M3CMY9CMULJKG6Q</Key><RequestId>B09B6836031219A8</RequestId><HostId>GIxwOGJB8DMKoIxYcqNkRDL/a1rcrPyg7hmMx+UNNtvUVgaOILdjCMe/ntfo/+bIxWG1D5ws7SU=</HostId></Error>

Currently, what we are doing is comparing the string "<?xml version=“ and saving the buffer just in case of an error overtime the callback is entered.

Thanks.

Colin

On 5/17/16, 2:18 PM, "curl-library on behalf of Ray Satiro via curl-library" <curl-library-bounces_at_cool.haxx.se on behalf of curl-library_at_cool.haxx.se> wrote:

>On 5/17/2016 2:36 PM, Colin Ngam wrote:
>> In a PUT situation, you can register a callback to capture any
>> messages from the Server. However, in the case of a GET, since the
>> callback is used for receiving data from the server, how do you get
>> error messages from the Server if any? How do you tell the difference
>> when the callback is called that it is data or an extended error
>> message from the Server?
>
>After curl_easy_perform returns check the HTTP response code [1] in
>addition to its return code. It's also possible to fail on error [2] but
>that closes the connection for each failure (ie another one will be
>opened for the next request to that server), which may not be good
>depending on your circumstances.
>
>
>[1]: https://urldefense.proofpoint.com/v2/url?u=https-3A__curl.haxx.se_libcurl_c_CURLINFO-5FRESPONSE-5FCODE.html&d=CwIGaQ&c=8S5idjlO_n28Ko3lg6lskTMwneSC-WqZ5EBTEEvDlkg&r=GgZxxOrjo7rUSi2a3aY7DXfeWcIXQ3Xn4a7ByYeR4wA&m=lGm8NZjRB-ivjY_hFXbZYz5DR6iJ1UHQ8-hkCnvr1fw&s=L5TIIqTzhn2ZuyVFLpPt_EuDtXYEKypcj96Tfvuvark&e=
>[2]: https://urldefense.proofpoint.com/v2/url?u=https-3A__curl.haxx.se_libcurl_c_CURLOPT-5FFAILONERROR.html&d=CwIGaQ&c=8S5idjlO_n28Ko3lg6lskTMwneSC-WqZ5EBTEEvDlkg&r=GgZxxOrjo7rUSi2a3aY7DXfeWcIXQ3Xn4a7ByYeR4wA&m=lGm8NZjRB-ivjY_hFXbZYz5DR6iJ1UHQ8-hkCnvr1fw&s=ORXSMMmzm0Rawoh-2DM1NZMdpSc-zS0tOQVR8gQGcJ4&e=
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