Union Type Response fails Typecheck when using `status(code, obj)`

[peterlustig78]

What version of Elysia is running?

1.4.5

What platform is your computer?

x64

What environment are you using

bun version 1.2.22

Are you using dynamic mode?

No

What steps can reproduce the bug?

The following code fails Typecheck

const testUnionResponse = {
      200: t.Union([t.Object({
        key2: t.String(),
        id: t.Literal(2)
      }), t.Object({
        key: t.Number(),
        id: t.Literal(1)
      })])
    }

const union = new Elysia()
  .get("/test", ({status}) => { //the function definiton will error
    return status(200,{key2: "s", id:2})
  }, {
    response: testUnionResponse
  })

What is the expected behavior?

Type Check does not fail.

What do you see instead?

Type 'ElysiaCustomStatusResponse<200, { key2: string; id: 2; }, 200>' is not assignable to type 'ElysiaCustomStatusResponse<200, { key2: string; id: 2; } | { id: 1; key: number; }, 200>'.
Type '{ key2: string; id: 2; } | { id: 1; key: number; }' is not assignable to type '{ key2: string; id: 2; }'.
Property 'key2' is missing in type '{ id: 1; key: number; }' but required in type '{ key2: string; id: 2; }'.ts(2345)

Additional information

using the same code without status(200, obj) does not throw a type error.

const union2 = new Elysia()
  .get("/test", ({status}) => {
    return {key2: "s", id: 2}
  }, {
    response: testUnionResponse
  })

Have you try removing the node_modules and bun.lockb and try again yet?

yes

[ToledoSDL]

Same thing happening to me after updating to Bun v1.2.22 and Elysia v1.4.5.

[SaltyAom]

This is extremely weird
If you remove the status(200 and just return as-is, it works
It also works with other status types if you set it to anything other than 200

I will take a look into this

[SaltyAom]

Should have been fixed in 81ea3aa in #1411

Please kindly see if this works by temporary install the patch version

bun add https://pkg.pr.new/elysiajs/elysia@1411

[qingfua]

Should have been fixed in 81ea3aa in #1411

Please kindly see if this works by temporary install the patch version

It's does work in beforeHandle hook

Elysia version: v1.4.9

const app = new Elysia()
  .get(
    "/",
    ({ status }) => {
      // this one is ok
      return status(401, { error: "Unauthorized" });
    },
    {
      // Type 'ElysiaCustomStatusResponse<401, { error: string; }, 401>' is not assignable to type 'MaybePromise<void | { message: string; } | { error: string; }>'
      beforeHandle: ({ status }) => {
        return status(401, { error: "Unauthorized" });
      },
      response: {
        401: t.Object({
          error: t.String(),
        }),
      },
    }
  )
  .listen(3000);