{
  "$schema": "http://json-schema.org/draft-04/schema#",
  "title": "Change user password",
  "$id": "#user/change-password",
  "type": "object",
  "properties": {
    "current_password": { "type": "string" },
    "new_password": { "type": "string", "minLength": 8 }
  },
  "required": ["current_password", "new_password"],
  "additionalProperties": false
}