potiuk commented on code in PR #24399:
URL: https://github.com/apache/airflow/pull/24399#discussion_r903456893
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airflow/www/views.py:
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@@ -3541,6 +3544,10 @@ def extra_links(self, session: "Session" = NEW_SESSION):
response = jsonify({'url': None, 'error': 'Task Instances not
found'})
response.status_code = 404
return response
+ if link_name is None:
+ response = jsonify({'url': None, 'error': 'Link name not passed'})
+ response.status_code = 400
+ return response
Review Comment:
I prefer to explicitly handle the error `requests.args["link_name"] will
fail with ugly 500 error with - usually - cryptic stackrace, but this is really
400 -> bad request, and we should tell the user immediately what is wrong.
But yeah. It can be moved a little higher (I just moved it and also moved
link_name retrieval just before that check). We cannot move it up to the top (I
think) , because lack of the valid "dag_id" /"task_id" combination is a bit
more important (IMHO) than lack of link_name, and should be surfaced earlier.
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