[AIRFLOW-6001] Lazy load CLI commands

airflow/__init__.py

@@ -38,7 +38,6 @@
 from airflow.exceptions import AirflowException
 from airflow.models import DAG
 
-
 __version__ = version.version
 
 settings.initialize()

airflow/api/client/__init__.py

@@ -16,3 +16,23 @@
 # KIND, either express or implied.  See the License for the
 # specific language governing permissions and limitations
 # under the License.
+"""
+API Client that allows interact with Airflow API
+"""
+from importlib import import_module
+from typing import Any
+
+from airflow import api, conf
+from airflow.api.client.api_client import Client
+
+
+def get_current_api_client() -> Client:
+    """
+    Return current API Client depends on current Airflow configuration
+    """
+    api_module = import_module(conf.get('cli', 'api_client'))  # type: Any
+    api_client = api_module.Client(
+        api_base_url=conf.get('cli', 'endpoint_url'),
+        auth=api.API_AUTH.api_auth.CLIENT_AUTH
+    )
+    return api_client