{
  "properties": {
    "appBaseUri":  "https://app.example.com:8444"
  },
  "handler": {
    "type": "Chain",
    "config": {
      "filters": [
        {
          "type": "PasswordReplayFilter",
          "config": {
            "loginPage": "${request.uri.path == '/login'}",
            "loginPageExtractions": [
              {
                "name": "hidden",
                "pattern": "loginToken\\s+value=\"(.*)\""
              }
            ],
            "request": {
              "method": "POST",
              "uri": "${appBaseUri}/login",
              "form": {
                "username": [
                  "MY_USERNAME"
                ],
                "password": [
                  "MY_PASSWORD"
                ],
                "hiddenValue": [
                  "${attributes.extracted.hidden}"
                ]
              }
            }
          }
        }
      ],
      "handler": "ReverseProxyHandler"
    }
  },
  "condition": "${find(request.uri.query, 'demo=hidden')}",
  "baseURI": "${appBaseUri}"
}