tencent cloud

using COSXML.Model.Tag;
using COSXML.Auth;
using COSXML.Transfer;
using System;
using COSXML;
using System.Threading.Tasks;

namespace COSSnippet
{
    public class TransferCopyObjectModel {

      private CosXml cosXml;

      TransferCopyObjectModel() {
        CosXmlConfig config = new CosXmlConfig.Builder()
          .SetRegion("COS_REGION") // Set the default region. For abbreviations of COS regions, visit https://www.tencentcloud.com/document/product/436/6224.
          .Build();

        string secretId = "SECRET_ID";   // SecretId of the TencentCloud API. For more information about how to obtain the API key, see https://console.tencentcloud.com/cam/capi.
        string secretKey = "SECRET_KEY"; // SecretKey of the TencentCloud API. For more information about how to obtain the API key, see https://console.tencentcloud.com/cam/capi.
        long durationSecond = 600;          // Validity period of the request signature in seconds
        QCloudCredentialProvider qCloudCredentialProvider = new DefaultQCloudCredentialProvider(secretId, 
          secretKey, durationSecond);

        this.cosXml = new CosXmlServer(config, qCloudCredentialProvider);
      }

      /// Copy an object via advanced API
      public async Task TransferCopyObject()
      {
        TransferConfig transferConfig = new TransferConfig();
        // Manually set the multipart copy threshold. If the object size is less than the threshold, simple copy is used. Otherwise, multipart copy is used. If no value is specified, the default value 5 MB is used.
        transferConfig.DdivisionForCopy = 5242880;
        // Manually set the automatic part size for the advanced API. If no value is specified, the default value 2 MB is used.
        transferConfig.SliceSizeForCopy = 2097152;

        // Initialize TransferManager
        TransferManager transferManager = new TransferManager(cosXml, transferConfig);

        string sourceAppid = "1250000000"; // Account appid
        string sourceBucket = "sourcebucket-1250000000"; //" Source object bucket
        string sourceRegion = "COS_REGION"; // Source object bucket region
        string sourceKey = "sourceObject"; // Source object key
        // Construct source object attributes
        CopySourceStruct copySource = new CopySourceStruct(sourceAppid, sourceBucket, 
            sourceRegion, sourceKey);

        string bucket = "examplebucket-1250000000"; // Destination bucket in the format of BucketName-APPID
        string key = "exampleobject"; // Object key of the destination bucket

        COSXMLCopyTask copytask = new COSXMLCopyTask(bucket, key, copySource);

        try {
          COSXML.Transfer.COSXMLCopyTask.CopyTaskResult result = await 
            transferManager.CopyAsync(copytask);
          Console.WriteLine(result.GetResultInfo());
          string eTag = result.eTag;
        }
        catch (COSXML.CosException.CosClientException clientEx)
        {
          // Request failed
          Console.WriteLine("CosClientException: " + clientEx);
        }
        catch (COSXML.CosException.CosServerException serverEx)
        {
          // Request failed
          Console.WriteLine("CosServerException: " + serverEx.GetInfo());
        }

      }

      static void Main(string[] args)
      {
        TransferCopyObjectModel m = new TransferCopyObjectModel();

        /// Copy an object via advanced API
        m.TransferCopyObject().Wait();
      }
    }
}