acuity_parameter_fixer.rb

class AcuityParameterFixer
  def initialize(app)
    @app = app
  end

  def call(env)
    request = Rack::Request.new(env)

    if request.path == '/acuity/webhook' && request.params['action']
      request.update_param('acuity_action', request.params['action'])
    end

    status, headers, resp = @app.call(env)

    [status, headers, resp]
  end
end