soto: DeleteObject command giving NotImplemented error

Describe the bug I have an S3 compatible bucket in DigitalOcean Storage which I can access and use with other tools like Cyberduck. I implemented upload and deletion of an object using soto in my Vapor service. The problem I have is that whereas the PutObject works fine, the DeleteObject is giving me an error.

To Reproduce Steps to reproduce the behavior:

1. Create a bucket in DigitalOcean Storage
2. Upload a file
3. Try to delete the file

Expected behavior The file is deleted

Actual result The request fails with Unhandled error, code: notImplemented My guess is that there is some header in the request that shouldn’t be there and it can’t process. What bothers me is that using the same S3 bucket with other SDKs or even with a direct cURL works fine so I guess it must be something related to soto 🤔

Setup (please complete the following information):

• OS: MacOS 12.3.1
• Version of soto: 6.0.0
• Authentication mechanism: hard-coded credentials

Additional context I ran the command with the logging middleware:

Request:
  DeleteObject
  DELETE https://region.digitaloceanspaces.com/bucket/file.txt?x-id=DeleteObject
  Headers: [
    user-agent : Soto/6.0
    content-type : application/octet-stream
  ]
  Body: empty
Response:
  Status : 501
  Headers: [
    content-length : 193
    x-amz-request-id : tx00000000000000805c1d1-0062bf3992-51f730ea-fra1b
    accept-ranges : bytes
    content-type : application/xml
    date : Fri, 01 Jul 2022 18:14:42 GMT
    cache-control : max-age=60
    strict-transport-security : max-age=15552000; includeSubDomains; preload
  ]
  Body: 
  <Error><Code>NotImplemented</Code><RequestId>tx00000000000000805c1d1-0062bf3992-51f730ea-fra1b</RequestId><HostId>redacted-host-id</HostId></Error>

The code I’m using is pretty simple:

let deleteObjectRequest = S3.DeleteObjectRequest(
            bucket: "bucket",
            key: "file.jpg"
        )
        _ = try await s3.deleteObject(deleteObjectRequest)

and doing the following cURL works fine:

curl -X DELETE  \
-H "user-agent: Soto/6.0" \
-H "content-type: application/octet-stream" \
-H "host: region.digitaloceanspaces.com" \
-H "x-amz-date: 20220701T173944Z" \
-H "x-amz-content-sha256: e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855" \
-H "Authorization: AWS4-HMAC-SHA256 Credential=REDACTED" \
"https://region.digitaloceanspaces.com/bucket/file.txt?x-id=DeleteObject"