Cloudflare's R2 has an extension that prevents a NoSuchBucket error, by creating the bucket if it does not exist. To enable it, you're supposed to add a cf-create-bucket-if-missing: true header on the PutObject request. Can this header be set if we're using the @aws-sdk/client-s3 npm package? If so, how?
If the answer is no, is there an alternative workaround that you would recommend?
If it helps, I'm creating a backend nestjs API, and would like to include this header in outgoing requests.
The AWS SDK v2 allows you to modify requests via Middleware.
Here’s an example of adding a custom header using middleware:
const client = new S3({ region: "us-east-1" });
client.middlewareStack.add(
(next, context) => (args) => {
args.request.headers["cf-create-bucket-if-missing"] = "true";
return next(args);
},
{
step: "serialize",
}
);
const params = {}; // TODO: fill in usual PutObject params
await client.PutObject(params);
There's a good article that dives into the middleware stack here.