GET /?X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential=AKIDEXAMPLE%2F20150830%2Fus-east-1%2Fservice%2Faws4_request&X-Amz-Date=20150830T123600Z&X-Amz-SignedHeaders=host%3Bmy-header1&X-Amz-Expires=3600&X-Amz-Signature=e6f5def831211aca02987a44b96826706278c7bc078112ae0263659c5b2f2d56 HTTP/1.1
Host:example.amazonaws.com
My-Header1:value1
  value2
     value3