[Feature Request] Get traffic metrics via httpPlugins ops callback

[gregoiregentil]

Describe the feature request

THank you (again) for this great project.

I'm aware of enablePromotheus (which I have enabled) and I would like to get traffic usage, aka. transferred byte amount via:
[[httpPlugins]]
ops = ["CloseProxy"]

The promotheus interface does show:
frp_server_traffic_in{name="myname",type="tcp"} 2055
so the information is "there"

Have I missed an option or a meta that would already exist to get such traffic info in httpPplugins for that specific proxy?

Otherwise, could it be implemented? Or could I get some guidance how to patch?

Describe alternatives you've considered

No alternatives known.

Affected area

• Docs
• Installation
• Performance and Scalability
• Security
• User Experience
• Test and Release
• Developer Infrastructure
• Client Plugin
• Server Plugin
• Extensions
• Others

[fatedier]

Currently we do not have plans to expose statistics at the plugin layer. Plugins are mainly intended for extending control-plane functionality rather than for exposing metrics.

[gregoiregentil]

Can you guide how and where to patch? Is it complicated or is it just adding some "pipes"? Because calculation and data already exist...

[fatedier]

If you want to modify the code yourself, it should be relatively easy now with the help of AI tools.

[gregoiregentil]

Great answer! We are just wasting keystrokes...