How do I allow "Unexpected Property" in my query schema?

[Blankeos]

Currently building OAuth with Lucia, but this blocker I'm facing is Elysia-specific. I am making the /callback endpoint for my OAuth flow currently.

The only query parameters important to me are code and state from Google OAuth.

So, I defined them like this in my query schema:

.get(
    "/login/google/callback",
    async (ctx) => {
      return await googleCallback({
        code: ctx.query.code,
        state: ctx.query.state,
        storedState: ctx.cookie.google_oauth_state.value,
        storedCodeVerifier: ctx.cookie.google_oauth_codeverifier.value,
      });
    },
    {
      query: t.Optional(
        t.Object({
          code: t.String(),
          state: t.String(),
          // scope: t.Optional(t.String()),
          // authuser: t.Optional(t.String()),
          // prompt: t.Optional(t.String()),
        })
      ),
      cookie: t.Cookie({
        google_oauth_state: t.String(),
        google_oauth_codeverifier: t.String(),
      }),
      detail: {
        description: "Callback for Google OAuth",
        tags: ["Auth"],
      },
    }
  )

The errors are: scope, authuser, prompt are unexpected properties (hence you see 3 errors in the screenshot).

To be honest, I don't even need to use them. Is there any way I can define them in typebox in such a way where I don't need to define them.

The workaround currently is to uncommenting these to make the endpoint work but I'd rather not always keep track of what new query variable Google adds to their OAuth callback.

Error

[Blankeos]

Aight! Nevermind, I think I got it. The additionalProperties in the validate error message helped.

.get(
    "/login/google/callback",
    async (ctx) => {
      return await googleCallback({
        code: ctx.query.code,
        state: ctx.query.state,
        storedState: ctx.cookie.google_oauth_state.value,
        storedCodeVerifier: ctx.cookie.google_oauth_codeverifier.value,
      });
    },
    {
      query: t.Object(
        {
          code: t.String(),
          state: t.String(),
        },
        {
          /** So we can allow unexpected properties without causing an error. */
          additionalProperties: true,
        }
      ),
      cookie: t.Cookie({
        google_oauth_state: t.String(),
        google_oauth_codeverifier: t.String(),
      }),
      detail: {
        description: "Callback for Google OAuth",
        tags: ["Auth"],
      },
    }
  )