node:internal/process/promises:245
          triggerUncaughtException(err, true /* fromPromise */);
          ^

TypeError [ERR_INVALID_ARG_TYPE]: The "path" argument must be of type string or an instance of Buffer or URL. Received null
    at TempWriteStream.WriteStream (node:internal/fs/streams:360:5)
    at new TempWriteStream (C:\Users\User\IdeaProjects\TMS\node_modules\fs-temp\lib\write-stream.js:6:15)
    at Object.createWriteStream (C:\Users\User\IdeaProjects\TMS\node_modules\fs-temp\lib\temp.js:121:10)
    at Busboy.<anonymous> (C:\Users\User\IdeaProjects\TMS\node_modules\multer\lib\read-body.js:70:27)
    at Busboy.emit (node:events:369:20)
    at Busboy.emit (C:\Users\User\IdeaProjects\TMS\node_modules\busboy\lib\main.js:37:33)
    at PartStream.<anonymous> (C:\Users\User\IdeaProjects\TMS\node_modules\busboy\lib\types\multipart.js:214:13)
    at PartStream.emit (node:events:369:20)
    at HeaderParser.<anonymous> (C:\Users\User\IdeaProjects\TMS\node_modules\dicer\lib\Dicer.js:50:16)
    at HeaderParser.emit (node:events:369:20) {
  code: 'ERR_INVALID_ARG_TYPE'
}

Process finished with exit code 1

const _upload = multer({
	limits: {
		fileSize: CONFIG_STORAGE.uploader.maxFileSizeInBytes
	}
}).single("file");

const asyncUpload = promisify(_upload);
await asyncUpload(req, res);