display halted_callback in lograge

lograge.rb

# frozen_string_literal: true
Rails.application.configure do
  config.lograge.enabled = true
  config.lograge.formatter = Lograge::Formatters::Logstash.new

  config.lograge.custom_options = lambda do |event|
    exceptions = %w[controller action format password]
    {
      uuid: event.payload[:uuid],
      host: event.payload[:host],
      halted_callback: halted_callback(event),
      time: event.time,
      params: event.payload[:params].except(*exceptions)
    }
  end

  def halted_callback(event)
    return nil unless event.children && event.children.any?
    event.children.first.payload[:filter] if event.children.first.respond_to?(:payload)
  end
end

or check roidrage/lograge#259