Class: Airbrake::Rack::Middleware

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

Overview

Airbrake Rack middleware for Rails and Sinatra applications (or any other Rack-compliant app). Any errors raised by the upstream application will be delivered to Airbrake and re-raised.

The middleware automatically sends information about the framework that uses it (name and version).

For Rails apps the middleware collects route performance statistics.

Instance Method Summary collapse

Constructor Details

#initialize(app) ⇒ Middleware

Returns a new instance of Middleware.



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# File 'lib/airbrake/rack/middleware.rb', line 14

def initialize(app)
  @app = app
end

Instance Method Details

#call(env) ⇒ Object

Thread-safe #call!.

Parameters:

  • env (Hash) —

    the Rack environment

See Also:



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# File 'lib/airbrake/rack/middleware.rb', line 22

def call(env)
  dup.call!(env)
end

#call!(env) ⇒ Object

Rescues any exceptions, sends them to Airbrake and re-raises the exception. We also duplicate middleware to guarantee thread-safety.

Parameters:

  • env (Hash) —

    the Rack environment



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# File 'lib/airbrake/rack/middleware.rb', line 30

def call!(env)
  before_call(env)

  begin
    response = @app.call(env)
  rescue Exception => ex # rubocop:disable Lint/RescueException
    notify_airbrake(ex)
    raise ex
  end

  exception = framework_exception(env)
  notify_airbrake(exception) if exception

  response
ensure
  # Clear routes for the next request.
  RequestStore.clear
end