Heroku一键部署：基于配置变量的app.json success_url

Question

有没有人知道是否可以在app.json应用程序清单中提供自定义success_url值？

例如，鉴于此json，我想以http：// {ORG_NAME} -example.com

的形式构建success_url

{
  "name": "App Name",
  "description": "App Description",
  "repository": "https://github.com/user/repo",
  "env": {
    "ORG_NAME": {
      "description": "Company Name"
    }
    ,
    "SUBDOMAIN": {
      "description": "Your chosen subdomain. If none is chose, ORG_NAME will be used.",
      "required": "false"
    },
  }
}

谢谢！