{
    "$id": "https://example.com/user-profile.schema.json",
    "$schema": "https://json-schema.org/draft/2020-12/schema",
    "description": "A representation of a user profile",
    "type": "object",
    "required": ["username", "email"],
    "properties": {
      "username": {
        "type": "string"
      },
      "email": {
        "type": "string",
        "format": "email"
      },
      "fullName": {
        "type": "string"
      },
      "age": {
        "type": "integer",
        "minimum": 0
      },
      "location": {
        "type": "string"
      },
      "interests": {
        "type": "array",
        "items": {
          "type": "string"
        }
      },
      "address": { "$ref": "/address.schema.json" }
    }
  }