formData.keys, .entries is not a function

[tranzium]

When using request.formData() and obtaining a FormData object, both the "entries" and "keys" methods are not found.

miniflare --version // 2.0.0-next.3

const form = await request.formData()
if ("entries" in form) {
  console.log("entries", ...form.entries())
}
if ("keys" in form) {
  console.log("keys", ...form.keys())
}

miniflare --debug

(no output)
POST /login/ 200 OK (174.75ms)

wrangler dev

entries [ 'email',  '' ] [ 'passphrase',  '' ]
keys email passphrase

entries [ 'email',  '' ] [ 'passphrase',  '' ] [ 'remember',  '' ] [ 'username',  '' ] [ 'uuid',  '' ]
keys email passphrase remember username uuid
POST project.username.workers.dev/login/ HTTP/1.1 200 OK

[mrbbot]

Hey! 👋 This looks like an error in undici, the package Miniflare uses to provide fetch, Response, FormData, etc. I'd suggest you open an issue there. 🙂

import { FromData } from "undici";
const formData = new FormData();
formData.append("key", "value");
console.log("entries" in formData); // false
console.log("keys" in formData); // false

[tranzium]

Updating dependency undici to v4.10.0 will correct this issue.

[mrbbot]

Hey! 👋 miniflare@2.0.0-rc.2 has just been released, including the fix for this. You can find the changelog here.