S3 Data Transfer

To upload files into your S3 environment, we use cross-account IAM role assumption (AWS AssumeRole) from our side. You'll just need to create a role and grant it access to your bucket.

Here's how it works:

1. Reach out to your account manager at Reo.Dev to get the following details we've provisioned on our side:

   • Our AWS Account ID

2. In your AWS account, create a cross-account IAM role:

   • Create a new IAM role with a trusted entity scoped to our AWS Account ID

   • Attach the AmazonS3FullAccess policy (or a scoped policy with s3:PutObject on the target bucket)

   • Share the Role ARN and bucket name/prefix back with us

Once we have the Role ARN and bucket details, we'll run a test upload to confirm everything is working correctly.

Feel free to reach out to your account manager or drop us an email at [e-mail] in case you hit any blockers.