Generated queryKey parameters should be optional since undefined is already handled

[ritarock]

Problem

The generated queryKey function requires parameters to be mandatory when the type has required fields, even though:

1. The function already handles undefined cases internally with ...(params ? [params] : [])
2. We need to pass undefined when invalidating TanStack Query cache

Current Behavior

export type ListPetsParams = {
  limit: string; // required
};

// Generated code - params is required despite handling undefined
export const getListPetsQueryKey = (params: ListPetsParams) => {
  return [`http://localhost:8000/pets`, ...(params ? [params] : [])] as const;
};

// Cannot invalidate cache like this
queryClient.invalidateQueries(getListPetsQueryKey());

Current Workaround

We are currently using type assertion as a workaround:

queryClient.invalidateQueries(getListPetsQueryKey({} as ListPetsParams));

However, this is not ideal as it bypasses TypeScript's type checking and could lead to runtime errors.

Expected Behavior

Parameters should be optional since undefined is handled:

export const getListPetsQueryKey = (params?: ListPetsParams) => {
  return [`http://localhost:8000/pets`, ...(params ? [params] : [])] as const;
};

// Should be able to invalidate cache
queryClient.invalidateQueries(getListPetsQueryKey());

orval version: "7.4.1"
Node.js version: "v22.13.0"
pnpm version: "9.12.2"

[oTkPoBeHuE]

Could you please let me know when the issue might be fixed?
It is significantly affecting my work. Thank you!