Torch Object Storage
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- Documentation
Torch Object StorageSDK ReferenceC++Object InterfaceManage objectsDeleting Objects (C++ SDK)
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Deleting Objects (C++ SDK)
Copy pageDownload PDFDeleting Objects (C++ SDK)
When an object is no longer in use, you may delete it to reduce cost overhead. Currently, the TOS C++ SDK supports deleting individual objects or multiple specified objects within a bucket. For buckets with versioning enabled, you can specify and delete any version of an object.
Precautions
- To delete an object, you must have the tos:DeleteObject permission. For specific instructions, please refer to the Access control.
- To delete multi-version objects, you must have the tos:DeleteObjectVersion permission. For detailed instructions, please refer to the Access control.
- When versioning is enabled for a bucket, deleting an object without specifying its version ID will not permanently delete the object. Instead, a new version ID is generated and a DeleteMarker with a null version ID is inserted. Similarly, when versioning is suspended, deleting an object with a null version ID also creates a DeleteMarker with a null version ID. In a versioning-enabled bucket, deleting a specific version ID permanently deletes that version of the object.
Sample code
Delete an object
The following code is used to delete the exampledir/exampleobject.txt object from the specified bucket examplebucket.
#include "TosClientV2.h"
using namespace VolcengineTos;
int main(void){
std::string region = "Your Region";
std::string accessKey = std::getenv("TOS_ACCESS_KEY");
std::string secretKey = std::getenv("TOS_SECRET_KEY");
std::string bucketName = "examplebucket";
std::string objectName = "exampledir/exampleobject.txt";
InitializeClient();
TosClientV2 client(region, accessKey, secretKey);
DeleteObjectInput input(bucketName,objectName);
auto output = client.deleteObject(input);
if (!output.isSuccess()) {
std::cout << "DeleteObject failed." << output.error().String() << std::endl;
CloseClient();
return -1;
}
std::cout << "DeleteObject success." << std::endl;
std::cout << " version id is:" << output.result().getVersionId()
<< " request id is:" << output.result().getRequestInfo().getRequestId()
<< " is delete marker:" << output.result().isDeleteMarker() << std::endl;
CloseClient();
return 0;
}
Delete an object version
The following code is used to delete the specified version data of the exampledir/exampleobject.txt object in the specified multi-version enabled bucket examplebucket.
#include "TosClientV2.h"
using namespace VolcengineTos;
int main(void){
std::string region = "Your Region";
std::string accessKey = std::getenv("TOS_ACCESS_KEY");
std::string secretKey = std::getenv("TOS_SECRET_KEY");
std::string bucketName = "examplebucket";
std::string objectName = "exampledir/exampleobject.txt";
std::string versionId = "your object version";
InitializeClient();
TosClientV2 client(region, accessKey, secretKey);
DeleteObjectInput input(bucketName,objectName);
input.setVersionID(versionId);
auto output = client.deleteObject(input);
if (!output.isSuccess()) {
std::cout << "DeleteObject failed." << output.error().String() << std::endl;
CloseClient();
return -1;
}
std::cout << "DeleteObject success." << std::endl;
std::cout << " version id is:" << output.result().getVersionId()
<< " is delete marker:" << output.result().isDeleteMarker() << std::endl;
CloseClient();
return 0;
}
Batch delete objects
warning
- When using the DeleteMultiObjects API to batch delete objects in a version-controlled bucket, if versionId is not specified in the Delete request, a delete marker will be inserted. If versionId is specified, the designated version of the object will be permanently deleted.
- The response mode supported for batch object deletion can be configured using quiet:
- When quiet is set to false, the response will include the deletion result regardless of whether the object was successfully deleted.
- When quiet is set to true, only the results of objects that failed to be deleted are returned in the response; objects not returned are considered successfully deleted.
Batch delete objects
The following code is used to delete multiple objects with specified object names from the bucket examplebucket.
#include "TosClientV2.h"
using namespace VolcengineTos;
int main(void){
std::string region = "Your Region";
std::string accessKey = std::getenv("TOS_ACCESS_KEY");
std::string secretKey = std::getenv("TOS_SECRET_KEY");
std::string bucketName = "examplebucket";
std::string objectName1 = "exampledir/exampleobject1.txt";
std::string objectName2 = "exampledir/exampleobject2.txt";
InitializeClient();
TosClientV2 client(region, accessKey, secretKey);
DeleteMultiObjectsInput input;
input.setBucket(bucketName);
ObjectTobeDeleted object1(objectName1);
ObjectTobeDeleted object2(objectName2);
input.addObjectTobeDeleted(object1);
input.addObjectTobeDeleted(object2);
auto output = client.deleteMultiObjects(input);
if (!output.isSuccess()) {
std::cout << "DeleteMultiObjects failed." << output.error().String() << std::endl;
CloseClient();
return -1;
}
std::cout << "DeleteMultiObjects success." << std::endl;
for(auto& deleted : output.result().getDeleteds()){
std::cout << " object key is:" << deleted.getKey()
<< " object version id is:" << deleted.getVersionId()
<< " is delete marker:" << deleted.isDeleteMarker()
<< " delete marker version id is:" << deleted.getDeleteMarkerVersionId()<< std::endl;
}
for(auto& error : output.result().getErrors()){
std::cout << " delete err object key is:" << error.getKey()
<< " delete err object version id is:" << error.getVersionId()
<< " delete err message:" << error.getMessage() << std::endl;
}
CloseClient();
return 0;
}
Batch delete object versions
The following code is used to delete multiple object versions, specified by object name and version ID, from the bucket examplebucket.
#include "TosClientV2.h"
using namespace VolcengineTos;
int main(void){
std::string region = "Your Region";
std::string accessKey = std::getenv("TOS_ACCESS_KEY");
std::string secretKey = std::getenv("TOS_SECRET_KEY");
std::string bucketName = "examplebucket";
std::string objectName1 = "exampledir/exampleobject1.txt";
std::string objectName2 = "exampledir/exampleobject2.txt";
std::string versionId1 = "your object1 version";
std::string versionId2 = "your object2 version";
InitializeClient();
TosClientV2 client(region, accessKey, secretKey);
DeleteMultiObjectsInput input;
input.setBucket(bucketName);
ObjectTobeDeleted object1(objectName1,versionId1);
ObjectTobeDeleted object2(objectName2,versionId2);
input.addObjectTobeDeleted(object1);
input.addObjectTobeDeleted(object2);
auto output = client.deleteMultiObjects(input);
if (!output.isSuccess()) {
std::cout << "DeleteMultiObjects failed." << output.error().String() << std::endl;
CloseClient();
return -1;
}
std::cout << "DeleteMultiObjects success." << std::endl;
for(auto& deleted : output.result().getDeleteds()){
std::cout << " object key is:" << deleted.getKey()
<< " object version id is:" << deleted.getVersionId()
<< " is delete marker:" << deleted.isDeleteMarker()
<< " delete marker version id is:" << deleted.getDeleteMarkerVersionId()<< std::endl;
}
for(auto& error : output.result().getErrors()){
std::cout << " delete err object key is:" << error.getKey()
<< " delete err object version id is:" << error.getVersionId()
<< " delete err message:" << error.getMessage() << std::endl;
}
CloseClient();
return 0;
}
Delete all objects in the bucket
The following code is used to delete all objects in the bucket.
#include "TosClientV2.h"
using namespace VolcengineTos;
int main(void){
std::string region = "Your Region";
std::string accessKey = std::getenv("TOS_ACCESS_KEY");
std::string secretKey = std::getenv("TOS_SECRET_KEY");
std::string bucketName = "examplebucket";
std::string prefix = "yourkeyPrefix";
InitializeClient();
TosClientV2 client(region, accessKey, secretKey);
ListObjectVersionsV2Input input(bucketName);
bool isTruncated = true;
std::string nextKeyMarker = "";
DeleteObjectInput deleteObjectInput;
deleteObjectInput.setBucket(bucketName);
while(isTruncated){
input.setKeyMarker(nextKeyMarker);
auto output = client.listObjectVersions(input);
if (!output.isSuccess()) {
std::cout << "ListObjects failed." << output.error().String() << std::endl;
CloseClient();
return -1;
}
nextKeyMarker = output.result().getNextKeyMarker();
isTruncated = output.result().isTruncated();
for (const auto& versions : output.result().getVersions()) {
deleteObjectInput.setKey(versions.getKey());
deleteObjectInput.setVersionID(versions.getVersionId());
auto deleteOutput = client.deleteObject(deleteObjectInput);
if (!deleteOutput.isSuccess()){
if(output.error().getStatusCode() != 404 && output.error().getCode() != "NoSuchKey"){
std::cout << "DeleteObject failed:" << deleteOutput.error().String() << std::endl;
CloseClient();
return -1;
}
}
}
for (const auto& deleteMarker : output.result().getDeleteMarkers()) {
deleteObjectInput.setKey(deleteMarker.getKey());
deleteObjectInput.setVersionID(deleteMarker.getVersionId());
auto deleteOutput = client.deleteObject(deleteObjectInput);
if (!deleteOutput.isSuccess()){
if(output.error().getStatusCode() != 404 && output.error().getCode() != "NoSuchKey"){
std::cout << "DeleteObject failed:" << deleteOutput.error().String() << std::endl;
CloseClient();
return -1;
}
}
}
}
CloseClient();
return 0;
}
Relevant documentation
- For API documentation on deleting objects, refer to DeleteObject.
- For API documentation on deleting multi-version objects, see DeleteMultiObject.
Last updated: 2026.08.03 10:09:08
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