Torch Object Storage
Torch Object Storage
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- Documentation
Torch Object StorageSDK Reference.NETObject InterfaceManage ObjectsDeleting Objects (.NET SDK)
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Deleting Objects (.NET SDK)
Copy pageDownload PDFDeleting Objects (.NET SDK)
When an object is no longer in use, you may delete it to reduce cost overhead. Currently, the TOS .NET SDK supports deleting individual objects or specified multiple objects within a bucket. For buckets with versioning enabled, you can specify which version of an object to delete.
Notes
- Before deleting an object, you must ensure that your account has the tos:DeleteObject permission. For detailed instructions, please refer to the Permissions Configuration Guide.
- To delete a specified version of an object in a bucket with versioning enabled, you must have the tos:DeleteObjectVersion permission. For specific operations, please refer to the Permissions Configuration Guide.
Sample Code
Delete Specified Object
The following code is used to delete the specified object.
using System;
using TOS;
using TOS.Error;
using TOS.Model;
namespace ConsoleApp
{
internal class Program
{
private static void Main(string[] args)
{
var ak = Environment.GetEnvironmentVariable("TOS_ACCESS_KEY");
var sk = Environment.GetEnvironmentVariable("TOS_SECRET_KEY");
var endpoint = "https://tos-cn-beijing.volces.com";
var region = "cn-beijing";
var bucketName = "*** Provide your bucket name ***";
var objectKey = "*** Provide your object key ***";
var client = TosClientBuilder.Builder().SetAk(ak).SetSk(sk).SetEndpoint(endpoint).SetRegion(region).Build();
try
{
var deleteObjectInput = new DeleteObjectInput()
{
Bucket = bucketName,
Key = objectKey
};
var deleteObjectOutput = client.DeleteObject(deleteObjectInput);
Console.WriteLine("DeleteObject succeeded, Request ID {0}", deleteObjectOutput.RequestID);
}
catch (TosServerException ex)
{
Console.WriteLine("DeleteObject failed, Request ID {0}", ex.RequestID);
Console.WriteLine("DeleteObject failed, Status Code {0}", ex.StatusCode);
Console.WriteLine("DeleteObject failed, Response Error Code {0}", ex.Code);
Console.WriteLine("DeleteObject failed, Response Error Message {0}", ex.Message);
}
catch (TosClientException ex)
{
Console.WriteLine("DeleteObject failed, Error Message {0}", ex.Message);
}
catch (Exception ex)
{
Console.WriteLine("DeleteObject failed, {0}", ex.Message);
}
}
}
}
Delete the object of the specified version
The following code is used to delete an object of a specified version.
using System;
using TOS;
using TOS.Error;
using TOS.Model;
namespace ConsoleApp
{
internal class Program
{
private static void Main(string[] args)
{
var ak = Environment.GetEnvironmentVariable("TOS_ACCESS_KEY");
var sk = Environment.GetEnvironmentVariable("TOS_SECRET_KEY");
var endpoint = "https://tos-cn-beijing.volces.com";
var region = "cn-beijing";
var bucketName = "*** Provide your bucket name ***";
var objectKey = "*** Provide your object key ***";
var versionID = "*** Provide object Version ID";
var client = TosClientBuilder.Builder().SetAk(ak).SetSk(sk).SetEndpoint(endpoint).SetRegion(region).Build();
try
{
var deleteObjectInput = new DeleteObjectInput()
{
Bucket = bucketName,
Key = objectKey,
VersionID = versionID
};
var deleteObjectOutput = client.DeleteObject(deleteObjectInput);
Console.WriteLine("DeleteObject succeeded, Request ID {0}", deleteObjectOutput.RequestID);
}
catch (TosServerException ex)
{
Console.WriteLine("DeleteObject failed, Request ID {0}", ex.RequestID);
Console.WriteLine("DeleteObject failed, Status Code {0}", ex.StatusCode);
Console.WriteLine("DeleteObject failed, Response Error Code {0}", ex.Code);
Console.WriteLine("DeleteObject failed, Response Error Message {0}", ex.Message);
}
catch (TosClientException ex)
{
Console.WriteLine("DeleteObject failed, Error Message {0}", ex.Message);
}
catch (Exception ex)
{
Console.WriteLine("DeleteObject failed, {0}", ex.Message);
}
}
}
}
Batch Deletion of Objects
warning
- In a versioned bucket, when the DeleteMultiObjects API is called to delete objects in bulk, if versionId is not specified in the Delete request, a delete marker will be inserted. If versionId is specified, the specified version of the object will be permanently deleted.
- The response mode supported for batch object deletion can be configured using quiet. If quiet is set to false, the response will include the deletion result for each object, regardless of whether the deletion was successful. If quiet is set to true, the response will only include results for objects whose deletion failed; objects not listed in the response are considered successfully deleted.
The following code is used for batch deletion of objects.
using System;
using TOS;
using TOS.Error;
using TOS.Model;
namespace ConsoleApp
{
internal class Program
{
private static void Main(string[] args)
{
var ak = Environment.GetEnvironmentVariable("TOS_ACCESS_KEY");
var sk = Environment.GetEnvironmentVariable("TOS_SECRET_KEY");
var endpoint = "https://tos-cn-beijing.volces.com";
var region = "cn-beijing";
var bucketName = "*** Provide your bucket name ***";
var objectKey1 = "*** Provide Object Key ***";
var objectKey2 = "*** Provide Object Key ***";
var client = TosClientBuilder.Builder().SetAk(ak).SetSk(sk).SetEndpoint(endpoint).SetRegion(region).Build();
try
{
var objects = new[]
{
new ObjectTobeDeleted() { Key = objectKey1 },
new ObjectTobeDeleted() { Key = objectKey2 },
};
var deleteMultiObjectsInput = new DeleteMultiObjectsInput()
{
Bucket = bucketName,
Objects = objects,
};
var deleteMultiObjectsOutput = client.DeleteMultiObjects(deleteMultiObjectsInput);
Console.WriteLine("DeleteMultiObjects succeeded, Request ID {0}", deleteMultiObjectsOutput.RequestID);
}
catch (TosServerException ex)
{
Console.WriteLine("DeleteMultiObjects failed, Request ID {0}", ex.RequestID);
Console.WriteLine("DeleteMultiObjects failed, Status Code {0}", ex.StatusCode);
Console.WriteLine("DeleteMultiObjects failed, Response Error Code {0}", ex.Code);
Console.WriteLine("DeleteMultiObjects failed, Response Error Message {0}", ex.Message);
}
catch (TosClientException ex)
{
Console.WriteLine("DeleteMultiObjects failed, Error Message {0}", ex.Message);
}
catch (Exception ex)
{
Console.WriteLine("DeleteMultiObjects failed, {0}", ex.Message);
}
}
}
}
Bulk Deletion of Objects of a Specified Version
The following code is used to delete multiple object data from a storage bucket based on specified object names and version numbers.
using System;
using TOS;
using TOS.Error;
using TOS.Model;
namespace ConsoleApp
{
internal class Program
{
private static void Main(string[] args)
{
var ak = Environment.GetEnvironmentVariable("TOS_ACCESS_KEY");
var sk = Environment.GetEnvironmentVariable("TOS_SECRET_KEY");
var endpoint = "https://tos-cn-beijing.volces.com";
var region = "cn-beijing";
var bucketName = "*** Provide your bucket name ***";
var objectKey1 = "*** Provide Object Key ***";
var objectKey2 = "*** Provide Object Key ***";
var versionID1 = "*** Provide objectKey1 Version ID ***";
var versionID2 = "*** Provide objectKey2 Version ID ***";
var client = TosClientBuilder.Builder().SetAk(ak).SetSk(sk).SetEndpoint(endpoint).SetRegion(region).Build();
try
{
var objects = new[]
{
new ObjectTobeDeleted() { Key = objectKey1, VersionID = versionID1 },
new ObjectTobeDeleted() { Key = objectKey2, VersionID = versionID2 },
};
var deleteMultiObjectsInput = new DeleteMultiObjectsInput()
{
Bucket = bucketName,
Objects = objects,
};
var deleteMultiObjectsOutput = client.DeleteMultiObjects(deleteMultiObjectsInput);
Console.WriteLine("DeleteMultiObjects succeeded, Request ID {0}", deleteMultiObjectsOutput.RequestID);
}
catch (TosServerException ex)
{
Console.WriteLine("DeleteMultiObjects failed, Request ID {0}", ex.RequestID);
Console.WriteLine("DeleteMultiObjects failed, Status Code {0}", ex.StatusCode);
Console.WriteLine("DeleteMultiObjects failed, Response Error Code {0}", ex.Code);
Console.WriteLine("DeleteMultiObjects failed, Response Error Message {0}", ex.Message);
}
catch (TosClientException ex)
{
Console.WriteLine("DeleteMultiObjects failed, Error Message {0}", ex.Message);
}
catch (Exception ex)
{
Console.WriteLine("DeleteMultiObjects failed, {0}", ex.Message);
}
}
}
}
Delete all objects in the bucket
The following code is used to delete all objects in the storage bucket.
using System;
using TOS;
using TOS.Error;
using TOS.Model;
namespace ConsoleApp
{
internal class Program
{
private static void Main(string[] args)
{
var ak = Environment.GetEnvironmentVariable("TOS_ACCESS_KEY");
var sk = Environment.GetEnvironmentVariable("TOS_SECRET_KEY");
var endpoint = "https://tos-cn-beijing.volces.com";
var region = "cn-beijing";
var bucketName = "*** Provide your bucket name ***";
var objectKey = "*** Provide your object key ***";
var client = TosClientBuilder.Builder().SetAk(ak).SetSk(sk).SetEndpoint(endpoint).SetRegion(region).Build();
try
{
var keyMarker = "";
var isTruncated = true;
while (isTruncated)
{
var listObjectVersionsInput = new ListObjectVersionsInput()
{
Bucket = bucketName,
KeyMarker = keyMarker,
};
var listObjectVersionsOutput = client.ListObjectVersions(listObjectVersionsInput);
foreach (var obj in listObjectVersionsOutput.Versions)
{
var deleteObjectInput = new DeleteObjectInput()
{
Bucket = bucketName,
Key = obj.Key,
VersionID = obj.VersionID
};
var deleteObjectOutput = client.DeleteObject(deleteObjectInput);
Console.WriteLine("Delete {0}, Request ID {1}", obj.Key, deleteObjectOutput.RequestID);
}
foreach (var deleteMarker in listObjectVersionsOutput.DeleteMarkers)
{
var deleteObjectInput = new DeleteObjectInput()
{
Bucket = bucketName,
Key = deleteMarker.Key,
VersionID = deleteMarker.VersionID
};
var deleteObjectOutput = client.DeleteObject(deleteObjectInput);
Console.WriteLine("Delete {0}, Request ID {1}", deleteMarker.Key, deleteObjectOutput.RequestID);
}
isTruncated = listObjectVersionsOutput.IsTruncated;
keyMarker = listObjectVersionsOutput.NextKeyMarker;
}
}
catch (TosServerException ex)
{
Console.WriteLine("Clear Bucket failed, Request ID {0}", ex.RequestID);
Console.WriteLine("Clear Bucket failed, Status Code {0}", ex.StatusCode);
Console.WriteLine("Clear Bucket failed, Response Error Code {0}", ex.Code);
Console.WriteLine("Clear Bucket failed, Response Error Message {0}", ex.Message);
}
catch (TosClientException ex)
{
Console.WriteLine("Clear Bucket failed, Error Message {0}", ex.Message);
}
catch (Exception ex)
{
Console.WriteLine("Clear Bucket failed, {0}", ex.Message);
}
}
}
}
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Last updated: 2025.09.23 11:28:05
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