How to clear the list of background tasks?

Anvil Q&A
1

I noticed that the list returned by Anvil.server.list_background_tasks() keeps growing, even after app restarts.
This might become problematic if I want to poll the list in order to update the UI.
Also the list might contain some entries that throw a (confusing) exception when accessing some of the task’s methods (I presume for the ‘missing’ state).

2

To answer my own question: next to the app console tab at the bottom of the IDE is a Background Tasks tab. It will show this:

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Press “View all previous tasks” when the app is stopped (otherwise it won’t do anything). Then at the top right of the list of tasks is a delete button.

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3

I asked a similar question, but didn’t have an answer: How long do background tasks stay in the list?

I ended up using a data table to communicate with the background tasks.

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