[jira] [Assigned] (AIRFLOW-5840) Add a link to the external task that ExternalTaskSensor is waiting for

["Robert Conroy (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/AIRFLOW-5840?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Robert Conroy reassigned AIRFLOW-5840:
--------------------------------------

    Assignee: Robert Conroy

> Add a link to the external task that ExternalTaskSensor is waiting for
> ----------------------------------------------------------------------
>
>                 Key: AIRFLOW-5840
>                 URL: https://issues.apache.org/jira/browse/AIRFLOW-5840
>             Project: Apache Airflow
>          Issue Type: Improvement
>          Components: operators
>    Affects Versions: 1.10.6
>            Reporter: Qian Yu
>            Assignee: Robert Conroy
>            Priority: Major
>              Labels: ExternalTaskSensor, Target, get_link, link
>
> When using ExternalTaskSensor, there's no indication on the Web UI regarding which task the sensor is waiting for. Does anyone have ideas for improving this? 
> One idea is to override the get_link() abstract method of ExternalTaskSensor and point it to the task that the sensor waits for. Maybe something like this (just for demo, not tested and likely not working):
> {code:python}
> def get_link(self, operator: BaseOperator, dttm: datetime) -> str:
>      return "{}?dag_id={}&task_id={}&execution_date={}".format(conf["base_url"], self.external_task_id, self.execution_date.isoformat())
> {code}



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