Class: SnitchReporting::Rack

Inherits:
Object
  • Object
show all
Defined in:
lib/snitch_reporting/rack.rb

Defined Under Namespace

Classes: SnitchException

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(app, notify_callback = nil) ⇒ Rack

Returns a new instance of Rack.



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# File 'lib/snitch_reporting/rack.rb', line 5

def initialize(app, notify_callback=nil)
  @app = app
  @notify_callback = notify_callback
end

Instance Attribute Details

#notify_callback ⇒ Object

Returns the value of attribute notify_callback.



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# File 'lib/snitch_reporting/rack.rb', line 3

def notify_callback
  @notify_callback
end

Instance Method Details

#call(env) ⇒ Object 



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# File 'lib/snitch_reporting/rack.rb', line 10

def call(env)
  response = @app.call(env)
  _, headers, = response

  if headers["X-Cascade"] == "pass"
    msg = "This exception means that the preceding Rack middleware set the 'X-Cascade' header to 'pass' -- in " \
    "Rails, this often means that the route was not found (404 error)."
    raise SnitchException, msg
  end

  response
rescue Exception => exception
  occurrence = ::SnitchReporting::SnitchReport.fatal(exception, env: env)
  notify_callback.call(occurrence) if occurrence.notify?

  raise exception unless exception.is_a?(SnitchException)

  response
end