Metrics include time spent on background tasks in Starlette about timing-asgi HOT 3 OPEN

Agreed. The timing should be emitted after the response is sent to the client. It might be interesting to see the total time however, and subtracting the time-to-response from it, the time spent on background tasks could be derived.

from timing-asgi.

What's the status on this?

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I am not finding the time to work on it at the moment, but I did come up with a rough design for how I'd like to reengineer this middleware to emit metrics at 4 different points during the "request lifetime".

I have struggled to prioritise this, and should probably just roll a version of this middleware which wraps the response writing so we emit timing when writing response.

from timing-asgi.