Class: Appsignal::Rack::SinatraInstrumentation

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

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(app, options = {}) ⇒ SinatraInstrumentation

Returns a new instance of SinatraInstrumentation.



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# File 'lib/appsignal/rack/sinatra_instrumentation.rb', line 8

def initialize(app, options = {})
  Appsignal.logger.debug 'Initializing Appsignal::Rack::SinatraInstrumentation'
  @app, @options = app, options
  @raise_errors_on = @app.settings.raise_errors
end

Instance Attribute Details

#raise_errors_on ⇒ Object (readonly)

Returns the value of attribute raise_errors_on.



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# File 'lib/appsignal/rack/sinatra_instrumentation.rb', line 6

def raise_errors_on
  @raise_errors_on
end

Instance Method Details

#call(env) ⇒ Object 



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# File 'lib/appsignal/rack/sinatra_instrumentation.rb', line 14

def call(env)
  if Appsignal.active?
    call_with_appsignal_monitoring(env)
  else
    @app.call(env)
  end
end

#call_with_appsignal_monitoring(env) ⇒ Object 



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# File 'lib/appsignal/rack/sinatra_instrumentation.rb', line 22

def call_with_appsignal_monitoring(env)
  if @options[:params_method]
    env[:params_method] = @options[:params_method]
  end
  request = @options.fetch(:request_class, Sinatra::Request).new(env)
  transaction = Appsignal::Transaction.create(
    SecureRandom.uuid,
    Appsignal::Transaction::HTTP_REQUEST,
    request
  )
  begin
    ActiveSupport::Notifications.instrument('process_action.sinatra') do
      @app.call(env)
    end
  rescue => error
    transaction.set_error(error)
    raise error
  ensure
    # If raise_error is off versions of Sinatra don't raise errors, but store
    # them in the sinatra.error env var.
    if !@raise_errors_on && env['sinatra.error'] && !env['sinatra.skip_appsignal_error']
      transaction.set_error(env['sinatra.error'])
    end
    transaction.set_action(env['sinatra.route'])
    transaction.set_metadata('path', request.path)
    transaction.set_metadata('method', request.request_method)
    transaction.set_http_or_background_queue_start
    Appsignal::Transaction.complete_current!
  end
end