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lib/httparrot/ip_handler.ex
defmodule HTTParrot.IPHandler do
@moduledoc """
Returns Origin IP
"""
use HTTParrot.Cowboy, methods: ~w(GET HEAD OPTIONS)
def content_types_provided(req, state) do
{[{{"application", "json", []}, :get_json}], req, state}
end
def get_json(req, state) do
{{ip, _port}, req} = :cowboy_req.peer(req)
{response(ip), req, state}
end
defp response(ip) do
ip = :inet_parse.ntoa(ip) |> to_string
[origin: ip] |> JSX.encode!
end
end