baolsen commented on a change in pull request #7619: [AIRFLOW-6975] Base 
AWSHook AssumeRoleWithSAML
URL: https://github.com/apache/airflow/pull/7619#discussion_r387577246
 
 

 ##########
 File path: airflow/providers/amazon/aws/hooks/base_aws.py
 ##########
 @@ -156,26 +157,31 @@ def _get_credentials(self, region_name):
                         **session_kwargs
                     )
                     sts_client = sts_session.client("sts", config=self.config)
-                    # Assume role
+
                     assume_role_kwargs = dict()
                     if "assume_role_kwargs" in extra_config:
                         assume_role_kwargs = extra_config["assume_role_kwargs"]
-                    if "external_id" in extra_config:  # Backwards 
compatibility
-                        assume_role_kwargs["ExternalId"] = extra_config.get(
-                            "external_id"
-                        )
 
-                    role_session_name = "Airflow_" + self.aws_conn_id
-                    self.log.info(
-                        "Doing assume_role to role_arn=%s 
role_session_name=%s",
+                    assume_role_method = None
+                    if "assume_role_method" in extra_config:
+                        assume_role_method = extra_config['assume_role_method']
+                    self.log.info("assume_role_method=%s", assume_role_method)
+                    method = None
+                    if not assume_role_method:
+                        method = self._assume_role
+                    elif assume_role_method == 'assume_role_with_saml':
+                        method = self._assume_role_with_saml
+                    else:
+                        raise NotImplementedError(
+                            'assume_role_method=%s' % assume_role_method)
 
 Review comment:
   Great point, thanks. What makes sense to the developer might make no sense 
to the user ;) I will update these cases accordingly.

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