The REST Error Response

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, see Working with Errors.

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.