Can I get a backtrace from an `Event`?

[hwittenborn]

In my application, I'd like to do the following:

1. Catch any panics with sentry::init
2. Present the panic to the user (through a graphical user interface)
3. If the user accepts, upload the backtrace to sentry

The way I have this (sort of) set up right now is to use before_send to invoke the GUI:

    let _guard = sentry::init(("https://my-dsn", ClientOptions {
        before_send: Some(Arc::new(|mut event| {
            // How can I obtain the Rust backtrace from here?
            ...
            my_gui_code...
        })),
        ..Default::default()
    }));

But as shown in that spot in the example, I'm not quite sure how I'd get the recorded stack trace through there.

Is there any way I'd be able to do that?

[hwittenborn]

I managed to solve this in my application by disabling the Sentry panic handler, and then getting the backtrace with std::backtrace::Backtrace in my code's panic_handler, and then just calling PanicIntegration::new().event_from_panic_info(panic_info) manually and uploading the result.

I should be good with this issue now.