sp90/bun-multer-busboy

Example repo to show file upload issue with bun

Bun/Multer/Express

Trying it out

1. bun run index.ts
2. Visit localhost:3000
3. Upload file
4. See file data in the terminal

To test s3 make sure to

1. duplicate .env-example
2. rename to .env
3. add your s3 bucket secrets

What happens single upload

And the file is neatly put into the /uploads folder

What happens multi file upload

And the file is neatly put into the /uploads folder

What happens with s3

Uploads the file to s3

This was the error that used to happen:

When trying to upload a file through this simple express/multer setup i get the following error:

Here is also a copy of the output:

Example app listening on port 3000
58 |             ++this.byteCount;
59 |             const code = chunk[pos];
60 |             if (TOKEN[code] !== 1) {
61 |               if (code !== 58/* ':' */)
62 |                 return -1;
63 |               this.name += chunk.latin1Slice(start, pos);
                               ^
TypeError: Expected string
      at push (/Users/simon/Documents/dev/multer-bun/node_modules/busboy/lib/types/multipart.js:63:27)
      at /Users/simon/Documents/dev/multer-bun/node_modules/busboy/lib/types/multipart.js:394:22
      at /Users/simon/Documents/dev/multer-bun/node_modules/streamsearch/lib/sbmh.js:248:4
      at push (/Users/simon/Documents/dev/multer-bun/node_modules/streamsearch/lib/sbmh.js:104:15)
      at _write (/Users/simon/Documents/dev/multer-bun/node_modules/busboy/lib/types/multipart.js:567:4)
      at writeOrBuffer (node:stream:3614:8)
      at node:stream:3574:13
      at ondata (node:stream:2987:20)
      at node:stream:2913:8

I have tried various file uploade npm packages all of them use busboy beneth the surface and this is also where the error happen as seen from the stacktrace