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Show HN: FlowTracker – Track data flowing through Java programs

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Re: Show HN: FlowTracker – Track data flowing through Java programs

#31
post #12

Earlier quoted context omitted.

Thanks. As I was developing FlowTracker, a lot of the work was driven by making tracking of specific example programs work. I knew what result I was aiming for, but it was hard to predict what lower level mechanisms needed to be supported to make a specific example work. That often depended on internal implementation details of the JDK or libraries being used where the data was passing through. But the HTML element l…

I didn't make it to that element of the demo because I don't need a tool to help me find which file HTML text strings are from or that HTTP headers come from my web server. So I would recommend putting that "wow" element earlier in the demo.

Or maybe split the demo into shorter demos/gifs where each highlights a specific part. Very cool project, should get more attention.

Re: Show HN: FlowTracker – Track data flowing through Java programs

#32

This is pretty cool! Do you think something similar is possible for c#, too?

There's an event system that is integrated into all kinds of bits in the standard library and surrounding ecosystem, which plugs into all kinds of high level tools: dotnet-trace/-monitor/-counters, profiling in VS and Rider, etc. There are also telemetry hooks but I have not looked into them in closer details, supposedly that's what .NET Aspire uses. I think a similar experience can be quickly achieved with tracing i…

Thank you. To be honest, I hadn't heard of Aspire before, so TIL.

From a quick skim read, it sounds similar in some aspects. And also it's a good starting point.

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