module ZuoraConnect::Controllers::Helpers

def check_instance
  if defined?(@appinstance) && @appinstance.present?
    if @appinstance.new_session_for_api_requests(:params => params)
      @appinstance.new_session(:session => @appinstance.data_lookup(:session => session))
    end
    Thread.current[:appinstance] = @appinstance
    PaperTrail.whodunnit = "API User" if defined?(PaperTrail)
    ElasticAPM.set_user("API User")  if defined?(ElasticAPM) && ElasticAPM.running?
    return true
  else
    response.set_header('WWW-Authenticate', "Basic realm=\"Application\"")
    render json: {"status": 401, "message": "Access Denied"}, status: :unauthorized
    return false
  end
end