When called, this middleware renders an error page. By default if an HTML response is expected it will render static error pages from the `/public` directory. For example when this middleware receives a 500 response it will render the template found in `/public/500.html`. If an internationalized locale is set, this middleware will attempt to render the template in `/public/500.<locale>.html`. If an internationalized template is not found it will fall back on `/public/500.html`.

When a request with a content type other than HTML is made, this middleware will attempt to convert error information into the appropriate response type.

Methods
C
N
Attributes
[RW] public_path
Class Public methods
new(public_path)

Source: show | on GitHub 

# File actionpack/lib/action_dispatch/middleware/public_exceptions.rb, line 15
def initialize(public_path)
  @public_path = public_path
end
Instance Public methods
call(env)

Source: show | on GitHub 

# File actionpack/lib/action_dispatch/middleware/public_exceptions.rb, line 19
def call(env)
  request      = ActionDispatch::Request.new(env)
  status       = request.path_info[1..-1].to_i
  content_type = request.formats.first
  body         = { status: status, error: Rack::Utils::HTTP_STATUS_CODES.fetch(status, Rack::Utils::HTTP_STATUS_CODES[500]) }

  render(status, content_type, body)
end