Feature request: Intercept traffic from a process + all children processes

[Yvand]

Thank you for this great project. This is a feature request to expand capabilities documented in https://learn.microsoft.com/en-us/microsoft-cloud/dev/dev-proxy/how-to/intercept-requests-from-specific-processes, to capture all children processes for a given process.

Typical use case: Capture only the traffic from Microsoft Scout, currently not easy because Scout spawns many child processes (screenshot below shows some, but there are more depending on scenarios):

[garrytrinder]

Thanks for the suggestion and the kind words @Yvand 🙏

Have you tried --watch-process-names option?

devproxy --watch-process-names "Microsoft Scout"

This should track all processes that use the same name.

You can also pass multiple names:

devproxy --watch-process-names "Microsoft Scout" copilot node-runner node

[Yvand]

@garrytrinder that is indeed what I do, but in practice it is very far from ideal:

• It assumes I know all the children process names that will be spawned (there are more than what my screenshot shows)
• It does not discriminate to capture only processes that are actual children of "Microsoft Scout". Given the common processes Scount spawns, the amount of noise can be huge

[Yvand]

@garrytrinder just checking if you reached a decision on this feature request?

[garrytrinder]

@Yvand we will look into it this week, apologies for the delay in response.

[waldekmastykarz]

I have an idea how we could go about it. We'll release a beta version with the proposed functionality shortly. Sorry it's taken us that long.

[Yvand]

No worries at all, many thanks for investing your time and energy on this

[waldekmastykarz]

Thank you for the suggestion and working with us!

[waldekmastykarz]

@Yvand we've just released v4.0.0-beta.3 with the feature (might take a moment for it to show up on winget if you're on Windows). Looking forward to hearing if it meets your needs and if we can make it better for you.

[Yvand]

@waldekmastykarz @garrytrinder this is awesome. Even though it's not its primary purpose, this addition makes it the perfect tool for capturing targetted, non-browser, har traces (lightweight, cross platform, 1st party).
I'll test it this week and report back.
Thanks again for implementing this.