Bolt output

rules.json

{
  "rules": {
    "users": {
      "$uid": {
        ".validate": "newData.hasChildren(['uid', 'name', 'username'])",
        "uid": {
          ".validate": "newData.isString()"
        },
        "name": {
          ".validate": "newData.isString()"
        },
        "username": {
          ".validate": "newData.isString()"
        },
        "$other": {
          ".validate": "false"
        }
      }
    },
    "posts": {
      "$postid": {
        ".validate": "newData.hasChildren(['uid', 'title', 'description', 'timestamp'])",
        "uid": {
          ".validate": "newData.isString()"
        },
        "title": {
          ".validate": "newData.isString()"
        },
        "description": {
          ".validate": "newData.isString()"
        },
        "timestamp": {
          ".validate": "newData.isNumber()"
        },
        "$other": {
          ".validate": "false"
        }
      }
    }
  }
}