undefined media URL with payload-cloud-storage S3 in next-payload project

Hi!

I'm using plugin-cloud-storage in a next-payload project. When I create a new Media, it will be uploaded and show in the aws bucket correctly, but it will not show inside Payload admin. Checking the media info in the API tab, the "url" property is "undefined/bucket-name/file-name.jpg".

It seems like the "base url" for the file is not set somewhere, but I didn't find anything like this in the documentation (except for Azure adapter). What am I missing here? Thanks!

payload.config:

[...]
import { buildConfig } from "payload/config";
import { cloudStorage } from "@payloadcms/plugin-cloud-storage";
import { s3Adapter } from "@payloadcms/plugin-cloud-storage/s3";

const adapter = s3Adapter({
  config: {
    credentials: {
      accessKeyId: process.env.S3_ACCESS_KEY_ID || "",
      secretAccessKey: process.env.S3_SECRET_ACCESS_KEY || "",
    },
    region: process.env.S3_REGION || "us-east-1",
  },
  bucket: process.env.S3_BUCKET || "",
});

export default buildConfig({
  [...]
  plugins: [
    cloudStorage({
      collections: {
        media: {
          adapter,
          disablePayloadAccessControl: true,
        },
      },
    }),
  ],
});

package.json

  "dependencies": {
    "@aws-sdk/client-s3": "^3.437.0",
    "@aws-sdk/lib-storage": "^3.437.0",
    "@payloadcms/next-payload": "^0.1.8",
    "@payloadcms/plugin-cloud-storage": "^1.1.1",
    "@payloadcms/richtext-lexical": "^0.1.15",
    "aws-crt": "^1.18.2",
    "next": "13.5.6",
    "payload": "^2.0.13",
    "react": "^18",
    "react-dom": "^18"
  },
  "devDependencies": {
    "@types/node": "^20",
    "@types/react": "^18",
    "@types/react-dom": "^18",
    "eslint": "^8",
    "eslint-config-next": "13.5.6",
    "typescript": "^5"
  }

ok, so apparently what was missing was an

prop in the adapter's config. But I found this odd, because in the documentation it states that you should only use this prop if you're in a custom provider, other than S3:

Anyway, I've set it to

and it is working now