A
arktype•2mo ago
imMohika

undeclared keys in nested object

Hello. I want to use arktype for parsing objects in backend before sending them to client (mainly for removing unwanted keys), But when i use nested object types the undeclared keys won't get deleted ex: 
export const tUser = type({
  "+": "delete",
  phoneNumber: "string",
  type: tUserType,
});

export const tAuthMeResult = type({
  "requiresOnboarding?": "boolean",
  "user?": tUser,
  "account?": tAccount,
});
export const tUser = type({
  "+": "delete",
  phoneNumber: "string",
  type: tUserType,
});

export const tAuthMeResult = type({
  "requiresOnboarding?": "boolean",
  "user?": tUser,
  "account?": tAccount,
});
result in 
{
  "user": {
    "id": 2,
    "phoneNumber": "XXXX",
    "type": "user",
    "createdAt": "2025-03-06T12:50:43.849Z",
    "updatedAt": "2025-03-06T12:50:43.849Z"
  },
{
  "user": {
    "id": 2,
    "phoneNumber": "XXXX",
    "type": "user",
    "createdAt": "2025-03-06T12:50:43.849Z",
    "updatedAt": "2025-03-06T12:50:43.849Z"
  },
wanted result: 
"user": {
    "phoneNumber": "XXXX",
    "type": "user"
  },
"user": {
    "phoneNumber": "XXXX",
    "type": "user"
  },
Is this a limitation or am i doing something wrong? -# it works correctly if i parse user object with tUser before passing it to tAuthMeResult Thanks for your time
2 Replies
TizzySaurus
TizzySaurus•2mo ago
You can use .onDeepUndeclaredKey() instead of the "+": "delete" So type({phoneNumber: "string", type: tuserType}).onDeepUndeclaredKey("delete");
imMohika
imMohikaOP•2mo ago
At first it didn't worked, but when i used onDeepUndeclaredKey on tAuthMeResult it works. Thanks for your response ❤️

Did you find this page helpful?