in signer/msk_auth_token_provider.go [261:275]
func buildRequest(expirySeconds int, endpointURL string) (*http.Request, error) {
query := url.Values{
ActionType: {ActionName},
ExpiresQueryKey: {strconv.FormatInt(int64(expirySeconds), 10)},
}
authURL := url.URL{
Host: endpointURL,
Scheme: "https",
Path: "/",
RawQuery: query.Encode(),
}
return http.NewRequest(http.MethodGet, authURL.String(), nil)
}