POST /?Param1=value1&X-Amz-Algorithm=AWS4-ECDSA-P256-SHA256&X-Amz-Credential=AKIDEXAMPLE%2F20150830%2Fservice%2Faws4_request&X-Amz-Date=20150830T123600Z&X-Amz-SignedHeaders=host&X-Amz-Expires=3600&X-Amz-Region-Set=us-east-1&X-Amz-Signature=3045022025fbe60840e867e12ed08dde14cb7b65da87de27afd012fd2bef96c7bc5b6bfe022100ab6eaea845c3d8b65b39d4506cdd36232f10dae092ddd4d54f887d2f979821d9 HTTP/1.1
Host:example.amazonaws.com