[Phoenix] Is upload time included in the metric ?

[RobinFrcd]

Hi,
I'm using the http_request_duration_microseconds_bucket metric to get the durations of a few of my endpoints. I realized a few of my POST requests last much longer than expected.

My question is simple, does this metric include the upload-time of the POST data ? Or does it only starts once the full payload has been uploaded ?

Thanks,