How to get download bandwidth per second

[RammusXu]

Hi,

I'm trying to find out bytes/second metric on every clients. It helps us to know how much traffic we might need and what's client's networking environments.

I can't find this metric/information on existed RUM (js APM). I already know I can create customize transaction to do that, but it's kind of wasting client's bandwidth.

Thus, I'm curious on how to measure client's download speed (byte/second) if is possible. Or any other best practice way to do this. Thank you.

Other Infomation

This all empty on all devices and browsers. Not sure if it correct.

span.http.response.transfer_size
span.http.response.decoded_body_size
span.http.response.encoded_body_size

[vigneshshanmugam]

@RammusXu Browsers expose the connection information of the device through the Network Information API.

Download speed is exposed through the downlink property and can be estimated accordingly.

We already have a PR to measure this information - PR #752. Hope this helps, Let us know if you need more information.

[RammusXu]

@vigneshshanmugam That's nice. Thank you!