Amazon.S3.Util.BucketRegionDetector.GetBucketRegionNoPipelineAsync C# (CSharp) Method

        private static async Task<string> GetBucketRegionNoPipelineAsync(string bucketName, ImmutableCredentials credentials)
        {
            var headBucketPreSignedUrl = GetHeadBucketPreSignedUrl(bucketName, credentials);
            using (var s3Client = GetUsEast1ClientFromCredentials(credentials))
            {
                return (await AmazonS3HttpUtil.GetHeadAsync(s3Client, s3Client.Config, headBucketPreSignedUrl,
                    HeaderKeys.XAmzBucketRegion).ConfigureAwait(false)).HeaderValue;
            }
        }
    }