How to get a raw response like XML using s3 client from aws/sdk-javascript.

Question

When I execute ListBucketscommand() using the SDK's S3 client, you can get the following result.
How to get a raw response like XML using s3 client from aws/sdk.

// sample code & result
const command = new ListBucketsCommand({});
const response = await client.send(command);
console.log(response);
'$metadata': {
    httpStatusCode: 200,
    requestId: '1759FE4B14A997E0',
    extendedRequestId: 'e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855',
    cfId: undefined,
    attempts: 1,
    totalRetryDelay: 0
  },
  Buckets: [
    { Name: 'test', CreationDate: 2023-03-13T04:45:29.702Z },
    { Name: 'test-0424', CreationDate: 2023-04-24T03:25:08.831Z },
  ]

// xml format

minio
    02d6176db174dc93cb1b899f7c6078f08654445fe8cf1b6ce98d8855f66bdbf4

test
      2023-03-13T04: 45: 29.702Z

test-0424
      2023-04-24T03: 25: 08.831Z

Answer

The SDK parses the raw XML responses from the S3 API and converts them into JavaScript objects before returning them to the user.

https://docs.aws.amazon.com/AmazonS3/latest/userguide/using-select.html

But you can directly query S3 API

https://docs.aws.amazon.com/AmazonS3/latest/API/API_SelectObjectContent.html

You can use axios library to do this.

Answer

For AWS SDK for JavaScript v2, you can access the raw response via the response field on the request object.  Note that response field on the request object will not be set until after the request has been completed, thus the need to await in the example below before accessing.
```
const listBucketsRequest = S3.listBuckets({});
const listBucketsResponse = await listBucketsRequest.promise()
console.log(listBucketsRequest.response.httpResponse.body.toString());
```

If AWS SDK for JavaScript v3 does not expose a similar set of objects.  Access to the raw response would be done at the middleware level: 
* https://github.com/aws/aws-sdk-js-v3/tree/main/packages/middleware-stack
* https://aws.amazon.com/blogs/developer/middleware-stack-modular-aws-sdk-js/

How to get a raw response like XML using s3 client from aws/sdk-javascript.

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