uranusjr commented on code in PR #61483:
URL: https://github.com/apache/airflow/pull/61483#discussion_r2785865959
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airflow-core/src/airflow/api_fastapi/core_api/datamodels/dags.py:
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@@ -41,6 +41,14 @@
if TYPE_CHECKING:
from airflow.serialization.definitions.param import SerializedParamsDict
+
+# Module-level serializer instance for file tokens.
+# This avoids creating a new serializer and calling conf.get_mandatory_value()
+# for every DAG when generating file tokens, which significantly improves
+# performance of the /ui/dags endpoint.
+_FILE_TOKEN_SERIALIZER: URLSafeSerializer =
URLSafeSerializer(conf.get_mandatory_value("api", "secret_key"))
Review Comment:
I’d prefer to avoid using `conf` eagerly on import time. Maybe a `@cache`-ed
function instead?
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