ashb commented on code in PR #46032:
URL: https://github.com/apache/airflow/pull/46032#discussion_r1944254835
##########
task_sdk/src/airflow/sdk/api/client.py:
##########
@@ -253,14 +253,25 @@ class XComOperations:
def __init__(self, client: Client):
self.client = client
+ def head(self, dag_id: str, run_id: str, task_id: str, key: str) -> int:
+ """Get the number of mapped XCom values."""
+ resp = self.client.head(f"xcoms/{dag_id}/{run_id}/{task_id}/{key}")
+
+ # content_range: str | None
+ if not (content_range := resp.headers["Content-Range"]) or not
content_range.startswith(
+ "map_indexes "
+ ):
+ raise RuntimeError(f"Unable to parse Content-Range header from
HEAD {resp.request.url}")
+ return int(content_range[len("map_indexes ") :], base=10)
Review Comment:
Oh I thought if you didn't specify it it guessed the base. But that's JS I
guess, so no
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