config-initializers-01_podio.rb

Podio.setup(
  api_url: 'https://api.podio.com',
  api_key: Rails.application.config.podio_client_id,
  api_secret: Rails.application.config.podio_client_secret
)

$podio = Podio.client.authenticate_with_credentials(
  Rails.application.config.podio_username,
  Rails.application.config.podio_password
)

controllers-podio_controller.rb

class PodioController < ApplicationController
  skip_before_action :validate_param_type
  
  private
  
  def validate_param_type
    Podio::Hook.validate(params['hook_id'], params['code'])
  end
end