Class: Airbrake::Rack

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

Overview

Middleware for Rack applications. Any errors raised by the upstream application will be delivered to Airbrake and re-raised.

Synopsis:

require 'rack'
require 'airbrake'

Airbrake.configure do |config|
  config.api_key = 'my_api_key'
  #can also set the environment over here
  config.environment_name = ENV['RACK_ENV'] || "development"
end

app = Rack::Builder.app do
  run lambda { |env| raise "Rack down" }
end

use Airbrake::Rack
run app

Use a standard Airbrake.configure call to configure your api key.

Direct Known Subclasses

Sinatra

Instance Method Summary collapse

Constructor Details

#initialize(app) ⇒ Rack

Returns a new instance of Rack.



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# File 'lib/airbrake/rack.rb', line 25

def initialize(app)
  @app = app
  Airbrake.configuration.framework = "Rack: #{::Rack.release}"
end

Instance Method Details

#call(env) ⇒ Object 



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# File 'lib/airbrake/rack.rb', line 44

def call(env)
  begin
    response = @app.call(env)
  rescue Exception => raised
    env['airbrake.error_id'] = notify_airbrake(raised, env)
    raise raised
  end

  if framework_exception(env)
    env['airbrake.error_id'] = notify_airbrake(framework_exception(env), env)
  end

  response
end

#framework_exception(env) ⇒ Object 



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# File 'lib/airbrake/rack.rb', line 59

def framework_exception(env)
  env['rack.exception'] || env['sinatra.error']
end

#ignored_user_agent?(env) ⇒ Boolean

Returns:

  • (Boolean) 


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

def ignored_user_agent?(env)
  true if Airbrake.
    configuration.
    ignore_user_agent.
    flatten.
    any? { |ua| ua === env['HTTP_USER_AGENT'] }
end

#notify_airbrake(exception, env) ⇒ Object 



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# File 'lib/airbrake/rack.rb', line 38

def notify_airbrake(exception, env)
  unless ignored_user_agent?(env)
    Airbrake.notify_or_ignore(exception, :rack_env => env)
  end
end