module Roda::RodaPlugins::InvalidRequestBody

def self.configure(app, action=nil, &block)
  if action
    if block
      raise RodaError, "cannot provide both block and action when loading invalid_request_body plugin"
    end
    method = :"handle_invalid_request_body_#{action}"
    unless RequestMethods.private_method_defined?(method)
      raise RodaError, "invalid invalid_request_body action provided: #{action}"
    end
    app::RodaRequest.send(:alias_method, :handle_invalid_request_body, method)
  elsif block
    app::RodaRequest.class_eval do
      define_method(:handle_invalid_request_body, &block)
      alias handle_invalid_request_body handle_invalid_request_body
    end
  else
    raise RodaError, "must provide block or action when loading invalid_request_body plugin"
  end
  app::RodaRequest.send(:private, :handle_invalid_request_body)
end