{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://example.com/schemas/user.json",
  "title": "User",
  "type": "object",
  "required": [
    "user_id",
    "email",
    "active"
  ],
  "additionalProperties": false,
  "properties": {
    "user_id": {
      "type": "integer",
      "minimum": 1
    },
    "email": {
      "type": "string",
      "format": "email"
    },
    "active": {
      "type": "boolean"
    },
    "role": {
      "type": "string",
      "enum": [
        "admin",
        "member",
        "guest"
      ]
    }
  }
}