Support uniform bucket-level access

[dpkirchner]

The library cannot use GCS buckets configured to use bucket-level access. Attempts to use it will result in an exception: Cannot insert legacy ACL for an object when uniform bucket-level access is enabled.

Removing the predefinedAcl stream options key resolves this, although I'm not sure how you'd want to handle that generally.

[shinjanxp]

I found a workaround to this issue by passing a blank object as the acl property while calling multerGoogleStorage.storageEngine() from my app code without modifying the library. Apparently this causes the predefinedAcl property to be ignored by GCS

const upload = multer({
  storage: multerGoogleStorage.storageEngine({
    acl:{},
    filename: (_req, file, cb) => { cb(null, `/${new Date().getTime()}-${file.originalname}`); }
  })
});

Looking forward to a proper fix to this issue since many people could be affected by it.

[manuel-dancingly]

@shinjanxp how does that work for you? acl is not in the ConfigurationOption parameter on my end ...

[ZeroCho]

@manuel-dancingly
Too late reply but for those who has same issue, use multer-cloud-storage package instead and it has uniformBucketLevelAccess prop.

uniformBucketLevelAccess: true

[mufidu]

@manuel-dancingly Too late reply but for those who has same issue, use multer-cloud-storage package instead and it has uniformBucketLevelAccess prop.

uniformBucketLevelAccess: true

This helped me. Thanks.