If a REST request results in an error, the HTTP reply has:
An XML error document as the response body
Content-Type: application/xml
An appropriate 3xx, 4xx, or 5xx HTTP status code
Following is an example of a REST Error Response.
<?xml version="1.0" encoding="UTF-8"?>
<Error>
<Code>NoSuchKey</Code>
<Message>The resource you requested does not exist</Message>
<Resource>/mybucket/myfoto.jpg</Resource>
<RequestId>4442587FB7D0A2F9</RequestId>
</Error>
For more information about Amazon S3 errors, go to ErrorCodeList.
Response Headers
Following are response headers returned by all operations:
x-amz-request-id: A unique ID assigned to each
request by the system. In the unlikely event that you have problems with Amazon S3,
Amazon can use this to help troubleshoot the problem.
x-amz-id-2: A special token that will help us to
troubleshoot problems.