Don't read in entire request body

[nateberkopec]

This is not good: https://github.com/getsentry/raven-ruby/blob/master/lib/raven/integrations/rack.rb#L85 and will be very slow if the request body is large.

Also we will probably remove it from the event anyway.

[dentarg]

This is not good: https://github.com/getsentry/raven-ruby/blob/master/lib/raven/integrations/rack.rb#L85 and will be very slow if the request body is large.

Code has been moved around since the above was written, but I think it linked to this line: https://github.com/getsentry/raven-ruby/blob/884998d35edeed29d4fe49519d611d56936058a7/lib/raven/integrations/rack.rb#L85

[nateberkopec]

Adding a bug label because this can also cause events to be rejected for being too large.

[Davidslv]

@nateberkopec I'm wondering if the request can't be streamed?

[st0012]

I think this is not an issue anymore. Sentry now trims long data on the server side instead of rejecting the event.