Validation doesn't work for application/octet-stream

[Lutymane]

What version of Elysia is running?

1.1.25

What platform is your computer?

WSL2 Ubuntu under Windows 11

What steps can reproduce the bug?

Server:

import { Elysia, t } from "elysia";

new Elysia().post("/test", ({ body }) => {
    // prints proper ArrayBuffer if validation is commented out
    console.log(body)
}, {
  body: t.Uint8Array(),
});

Client:

await fetch("/test", {
  method: "POST",
  body: new Uint8Array([1, 2, 34, 52, 8]),
  headers: { "content-type": "application/octet-stream" },
});

When validation is present it errors with default 422 "Unprocessable Entity" message, if validation is commented out the payload is properly passed as body field

What is the expected behavior?

It shouldn't error and properly do the check

What do you see instead?

No response

Additional information

Fortunately I found a workaround for this with using onTransform hook:

import { Elysia, t } from "elysia";

new Elysia().post(
  "/test",
  ({ body }) => {
    // prints proper ArrayBuffer if validation is commented out
    console.log(body);
  },
  {
    transform(ctx) {
      if (ctx.body instanceof ArrayBuffer) {
        ctx.body = new Uint8Array(ctx.body);
      }
    },
    body: t.Uint8Array(),
  }
);

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

yes