Possible http status codes module for Elixir Phoenix Web Framework

gistfile1.ex

#
# Would this be useful to Phoenix?
#
# In controllers, it'd be nice to be able to refer to status codes as atoms instead of integers.
#


defmodule Phoenix.Controller.StatusCodes do

  @http_status_codes %{
    100 => "Continue",
    101 => "Switching Protocols",
    102 => "Processing",
    200 => "OK",
    201 => "Created",
    202 => "Accepted",
    203 => "Non-Authoritative Information",
    204 => "No Content",
    205 => "Reset Content",
    206 => "Partial Content",
    207 => "Multi-Status",
    208 => "Already Reported",
    226 => "IM Used",
    300 => "Multiple Choices",
    301 => "Moved Permanently",
    302 => "Found",
    303 => "See Other",
    304 => "Not Modified",
    305 => "Use Proxy",
    306 => "Reserved",
    307 => "Temporary Redirect",
    308 => "Permanent Redirect",
    400 => "Bad Request",
    401 => "Unauthorized",
    402 => "Payment Required",
    403 => "Forbidden",
    404 => "Not Found",
    405 => "Method Not Allowed",
    406 => "Not Acceptable",
    407 => "Proxy Authentication Required",
    408 => "Request Timeout",
    409 => "Conflict",
    410 => "Gone",
    411 => "Length Required",
    412 => "Precondition Failed",
    413 => "Request Entity Too Large",
    414 => "Request-URI Too Long",
    415 => "Unsupported Media Type",
    416 => "Requested Range Not Satisfiable",
    417 => "Expectation Failed",
    422 => "Unprocessable Entity",
    423 => "Locked",
    424 => "Failed Dependency",
    426 => "Upgrade Required",
    428 => "Precondition Required",
    429 => "Too Many Requests",
    431 => "Request Header Fields Too Large",
    500 => "Internal Server Error",
    501 => "Not Implemented",
    502 => "Bad Gateway",
    503 => "Service Unavailable",
    504 => "Gateway Timeout",
    505 => "HTTP Version Not Supported",
    506 => "Variant Also Negotiates (Experimental)",
    507 => "Insufficient Storage",
    508 => "Loop Detected",
    510 => "Not Extended",
    511 => "Network Authentication Required"
  }

  @atom_to_status_code \
    Enum.map(@http_status_codes, fn {code, message} ->
     {message
       |> String.downcase
       |> String.replace(~r/[\s-]/, "_")
       |> String.to_atom,
      code}
    end)
    |> Enum.into %{}


  def status_code(code) when is_integer(code), do: code
  def status_code(atom) when is_atom(atom), do: Dict.fetch!(@atom_to_status_code, atom)

end