Object Storage Service:Delete vectors (Go SDK V2)

Permissions

An Alibaba Cloud account has all permissions by default. A Resource Access Management (RAM) user or RAM role has no permissions by default. The Alibaba Cloud account or an administrator must grant permissions using a RAM policy or a bucket policy.

Method definition

func (c *VectorsClient) DeleteVectors(ctx context.Context, request *DeleteVectorsRequest, optFns ...func(*oss.Options)) (*DeleteVectorsResult, error) 

Request parameters

Return values

Sample code

package main

import (
	"context"
	"flag"
	"log"

	"github.com/aliyun/alibabacloud-oss-go-sdk-v2/oss"
	"github.com/aliyun/alibabacloud-oss-go-sdk-v2/oss/credentials"
	"github.com/aliyun/alibabacloud-oss-go-sdk-v2/oss/vectors"
)

var (
	region     string
	bucketName string
	accountId  string
)

func init() {
	// Define command-line parameters.
	flag.StringVar(&region, "region", "", "The region in which the vector bucket is located.")
	flag.StringVar(&bucketName, "bucket", "", "The name of the vector bucket.")
	flag.StringVar(&accountId, "account-id", "", "The Alibaba Cloud account ID.")
}

func main() {
	// Parse command-line parameters.
	flag.Parse()
	
	// Verify required parameters.
	if len(bucketName) == 0 {
		flag.PrintDefaults()
		log.Fatalf("invalid parameters, bucket name required")
	}

	if len(region) == 0 {
		flag.PrintDefaults()
		log.Fatalf("invalid parameters, region required")
	}

	if len(accountId) == 0 {
		flag.PrintDefaults()
		log.Fatalf("invalid parameters, accountId required")
	}

	// Create a configuration and set the credential provider, region, and account ID.
	cfg := oss.LoadDefaultConfig().
		WithCredentialsProvider(credentials.NewEnvironmentVariableCredentialsProvider()).
		WithRegion(region).
		WithAccountId(accountId).
		// To enable public access, set this to false or remove this line.
		WithUseInternalEndpoint(true)

	// Create a Vectors client.
	client := vectors.NewVectorsClient(cfg)

	// Build the request to delete vector data.
	request := &vectors.DeleteVectorsRequest{
		Bucket:    oss.Ptr(bucketName),
		IndexName: oss.Ptr("index"),
		Keys: [ ]string{

			"key1", "key2", // A list of vector keys to delete.
		},
	}
	
	// Execute the operation to delete vector data.
	result, err := client.DeleteVectors(context.TODO(), request)
	if err != nil {
		log.Fatalf("failed to delete vectors %v", err)
	}

	// Print the operation result.
	log.Printf("delete vectors result:%#v\n", result)
}

References

For the complete sample code for deleting vector data, see delete_vectors.go.