Commits on Jun 19, 2024

1. Supported nested Rack EventHandlers …

   In the case that an app, for whatever reason, has nested Rack
   EventHandlers, handle this properly.
   
   This change makes it so that the EventHandler doesn't create multiple
   transactions if it's nested inside another EventHandler. It does this by
   assigning itself an ID (UUID), and adding it to the request environment.
   Then, on every callback it receives, it checks if it is the first
   EventHandler that handled the request. Only then does it do any
   instrumentation.
   
   This will help with accidental multiple registrations of the AppSignal
   Rack EventHandler in one app, like with nested apps. It also opens the
   door for automatically registering the EventHandler for other gems, like
   Sinatra.

   

   tombruijn committed Jun 19, 2024
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