fix: signBytes for impersonated credentials (#506)
* fix: signBytes doesn't work for impersonated credentials
Fixes #338
* black
diff --git a/google/auth/impersonated_credentials.py b/google/auth/impersonated_credentials.py
index 84df484..4299802 100644
--- a/google/auth/impersonated_credentials.py
+++ b/google/auth/impersonated_credentials.py
@@ -264,7 +264,10 @@
iam_sign_endpoint = _IAM_SIGN_ENDPOINT.format(self._target_principal)
- body = {"payload": base64.b64encode(message), "delegates": self._delegates}
+ body = {
+ "payload": base64.b64encode(message).decode("utf-8"),
+ "delegates": self._delegates,
+ }
headers = {"Content-Type": "application/json"}