This middleware is responsible for logging exceptions and showing a debugging page in case the request is local.

Namespace

Class

Methods

Constants

RESCUES_TEMPLATE_PATH = File.expand_path("templates", __dir__)
 

Class Public methods

new(app, routes_app = nil, response_format = :default)

Source: 

# File actionpack/lib/action_dispatch/middleware/debug_exceptions.rb, line 53
def initialize(app, routes_app = nil, response_format = :default)
  @app             = app
  @routes_app      = routes_app
  @response_format = response_format
end

Instance Public methods

call(env)

Source: 

# File actionpack/lib/action_dispatch/middleware/debug_exceptions.rb, line 59
def call(env)
  request = ActionDispatch::Request.new env
  _, headers, body = response = @app.call(env)

  if headers["X-Cascade"] == "pass"
    body.close if body.respond_to?(:close)
    raise ActionController::RoutingError, "No route matches [#{env['REQUEST_METHOD']}] #{env['PATH_INFO'].inspect}"
  end

  response
rescue Exception => exception
  raise exception unless request.show_exceptions?
  render_exception(request, exception)
end