Extract arbitrary attributes from original request object.

[scinos]

Extract arbitrary attributes from original request object.

[kamilogorek]

They are indeed lost, as most of the information in frameworks are passed through prototypes and custom getter methods. Although, we still copy all the information that's directly attached to the request - https://github.com/getsentry/raven-node/blob/master/lib/client.js#L608-L609

I'm not sure if we want another config option right now, as we're in the process of writing next major version of our JS SDKs and every new option, will make it more complicated.

There are two things that I can propose. We can either add more options to be handpicked (if they are "somewhat" generic) or prior to catching the error in the middleware (which I assume you already do if you follow our docs), you can attach those properties directly to req object in the errorHandler, so that they'll be copied over - https://github.com/getsentry/raven-node/blob/master/lib/client.js#L551-L568