{
  "$id": "http://express-gateway.io/models/users.json",
  "type": "object",
  "properties": {
    "firstname": {
      "type": "string"
    },
    "lastname": {
      "type": "string"
    },
    "username": {
      "type": "string"
    },
    "email": {
      "type": "string",
      "format": "email"
    },
    "redirectUri": {
      "type": "string",
      "format": "uri"
    }
  },
  "required": [
    "username",
    "firstname",
    "lastname"
  ]
}