After this change: getsentry/raven-ruby@a786def the async handler is passed a hash with string keys whereas send_event and the processors included in raven expect symbol keys in the event hash.

It is not clear that the client is expected to transform the event hash back into a hash with symbol keys before passing to send_event.

Just enumerating some ideas:

• send_event should turn all the keys into symbols
• When working with an event hash throughout the gem string keys should be used
• Revert this change and have clients JSONify the event if needed in their async proc
• Some sort of configuration option to pass the actual event object to async