Action Dispatch PublicExceptions

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

Attributes

[RW] public_path

Class Public methods

new(public_path)

📝 Source code 
# File actionpack/lib/action_dispatch/middleware/public_exceptions.rb, line 19
    def initialize(public_path)
      @public_path = public_path
    end
🔎 See on GitHub

Instance Public methods

call(env)

📝 Source code 
# File actionpack/lib/action_dispatch/middleware/public_exceptions.rb, line 23
    def call(env)
      request      = ActionDispatch::Request.new(env)
      status       = request.path_info[1..-1].to_i
      begin
        content_type = request.formats.first
      rescue ActionDispatch::Http::MimeNegotiation::InvalidType
        content_type = Mime[:text]
      end
      body = { status: status, error: Rack::Utils::HTTP_STATUS_CODES.fetch(status, Rack::Utils::HTTP_STATUS_CODES[500]) }

      render(status, content_type, body)
    end
🔎 See on GitHub