Function getStringToSignV4

pkg/signer/request-signature-v4.go:201–206

getStringToSign a string based on selected query values.

(t time.Time, location, canonicalRequest, serviceType string)

// getStringToSign a string based on selected query values.
func getStringToSignV4(t time.Time, location, canonicalRequest, serviceType string) string {
	stringToSign := signV4Algorithm + "\n" + t.Format(iso8601DateFormat) + "\n"
	stringToSign = stringToSign + getScope(location, t, serviceType) + "\n"
	stringToSign += hex.EncodeToString(sum256([]byte(canonicalRequest)))
	return stringToSign
}

// PreSignV4 presign the request, in accordance with
// http://docs.aws.amazon.com/AmazonS3/latest/API/sigv4-query-string-auth.html.