how to handle formdata with endpoints

[bitdom8]

Got error: FormData parse error missing final boundary

login: async ({ cookies, request, locals }) => {   
49 |     let res;
50 |     try {
51 |       await db.use({ ns: "xx", db: "xx" });
52 |       const formData = await request.formData();     
                                 ^
TypeError: FormData parse error missing final boundary    
      at /usr/local/lsws/nodes/xx/build/server/entries/pages/_lang_/_page.server.ts.js:52:29

https://kit.svelte.dev/docs/form-actions

[bitdom8]

After debugging, still getting FormData parse error missing final boundary and it's not related to endpoints. Searched here but couldn't understand oven-sh/bun#621

[bitdom8]

Even tried this but no success sveltejs/kit#6901 @gornostay25

[bitdom8]

Managed dto have a different bun running outside of sveltekit then was able. Sveltekit makes things hard with cross-side. Even tried node-adaptor

[bottrall]

It looks like this isn't only affecting sveltekit/sveltekit-bun-adaptor, oven-sh/bun#2644.

[Paultje52]

Recently I encountered the same issue. It started when updating from 0.5.0 to 0.5.1. I'm using bun 1.0.4 because of another issue.

Here is a basic project to reproduce the error. Edit the import in svelte.config.js to see that it's working in 0.5.0, but not in 0.5.1.
svelte-adapter-bun-formdata.zip

Note: In the example I'm using @catdadcode/svelte-adapter-bun because of #39, however with the solution Dan1ve provided the issue is also reproducable in 0.5.1