Torch Object Storage
Torch Object Storage
Torch Object Storage
Document
What's New
Announcements
Billing
Billable items
Billing method
Getting Started
User Guide
Working with buckets
Basic configurations
Managing lifecycle
Back-to-origin rules
Event notification
Intelligent Tiering
Permissions
Domain management
Fault tolerance and disaster recovery
Cross-region replication
Same-region replication
Data redundancy
Image processing
ObjectSet
Working with objects
Managing folders
Monitoring and alerting
Metric monitoring
Access control
Bucket policies
Common configuration scenarios
Authorizing IAM users of the current account
Authorizing other accounts
Managing access via tools and SDKs
Managing public read access
Data security
Access points
Multi-region access points (MRAP)
Single-region access points (SRAP)
Converged access points (CAP)
DevMind
TOS accelerator
SenseFlow
TOS Agent
Data processing
Basic concepts
Image processing
Media processing
Document preview
Task processing
Data subscription
Flow control management
Quality of Service (QoS) policies
Hierarchical namespace (HNS)
User guide
Tool reference
Best practices
TOS Vectors
User guide
API reference
Vector bucket
Vector index
SDK reference
Python-Vectors
Vector bucket
Vector index
Java-Vectors
Vector bucket
Vector index
Node.js-Vectors
Vector bucket
Vector index
Tool Guide
tosutil
Common commands
Upload, download, and copy objects
Share objects
Auxiliary commands
Common examples
TOS Browser
FSX
FSX best practices
TOS PyTorch Connector
tosfsspec
API Reference
Signature Mechanism
The header contains a signature
Bucket
Basic Bucket Operations
Bucket Lifecycle
Access Monitor
Bucket ACL
Bucket CORS
Bucket Policy
Back-to-origin Rules
Bucket Replication
Versioning
Static Website
Event Notification
Custom Domain
Server-side encryption
Transfer Acceleration
Data Processing
Image processing
Media processing
Video transcoding
Audio transcoding
video to GIF
Document preview
File decompression
Log Storage
Retention Policy
Requester pays
TLS version
Object
Basic Object Operations
Object ACL
Fetch Object
Symbolic Link
WORM object
Multipart Upload
SDK Reference
Java
Pre-signing Mechanism
Bucket Interface
Basic Bucket Interface
Manage Bucket Configuration
Object Interface
Upload Object
Download Object
Upload and Download Speed Limit
Copy Object
List Object
Data Processing
Image Processing
Video Processing
Audio Processing
Log Configuration
Hierarchical Namespace
Bucket base interface
Introduction to Typical Scenes
Python
Data processing
Pre-signature mechanism
Bucket interface
Basic bucket interface
Manage bucket configuration
Object interface
Upload object
Download object
Copy object
List objects
Introduction to typical scenes
C
Object Interface
Upload object
C++
Pre-signature Mechanism
Bucket Interface
Basic Bucket Interface
Manage Bucket Configuration
Object Interface
Upload Object
Download Object
Copy Object
List Objects
Data Processing
Go
Object Interface
Upload Object
Download Object
Copy Object
List Objects
Manage Objects
Bucket Interface
Manage Bucket Configuration
Data Processing
Log Configuration
Introduction to Typical Scenes
Pre-signature Mechanism
Node.js
Pre-signature Mechanism
Bucket Interface
Basic Bucket Interface
Manage Bucket Configuration
Object Interface
Upload object
Download object
Copy object
List objects
Data Processing
Image Processing
Introduction to Typical Scenes
Browser.js
Pre-signature Mechanism
Upload Object
Download Object
Copy Object
List Objects
Manage Objects
Data Processing
.NET
Bucket Interface
Object Interface
Upload Object
Download Object
List Objects
Introduction to Typical Scenes
PHP
Bucket Interface
Object Interface
Download Object
Data Processing
Exception Handling
Android
Bucket Interface
Object Interface
Upload Object
Download Object
Exception Handling
iOS
Bucket Interface
Object Interface
Upload Object
Download Object
Harmony
Pre-signature Mechanism
Bucket Interface
Object Interface
Upload Object
Download Object
List Objects v2
Introduction to Typical Scenarios
Rust
Pre-signing mechanism
Bucket interface
Basic bucket operations
Lifecycle rules
Bucket ACLs
Cross-origin resource sharing
Bucket inventory
Back-to-origin rules
Bucket replication
Static website hosting
Event notification
Custom domain
Server-side encryption
Object interface
Basic operation
Access control
Error Codes
01-SERVICE_ERROR
02-AUTH
03-ACCESS_CONTROL
04-QOS
05-REQUEST
06-BUCKET
07-LIFECYCLE
08-ACL
09-CORS
10-POLICY
11-MIRROR
12-REPLICATION
13-WEBSITE
14-NOTIFICATION
15-ENCRYPT
16-CUSTOMDOMAIN
17-OBJECT
18-TAG
19-MULTIPART
20-STORAGE_CLASS
21-CALLBACK
22-DATA_PROCESS
23-BATCH
24-STORAGE_LENS
25-INVENTORY
26-DIRECTORY_BUCKET
FAQ
Best Practices
AIGC-Doubao LLMs
Accessing TOS with third-party tools
Granting temporary access
Data migration
Data processing
Checking data integrity
Performance optimization
- Documentation
Torch Object StorageTOS VectorsAPI referenceVector indexListIndexes
Copy page
Download PDFVector index
ListIndexes
Copy pageDownload PDFListIndexes
Description
Retrieve vector index information of the vector bucket.
Request syntax
The endpoint must use the Bucket Endpoint.
POST /ListIndexes HTTP/1.1
Host: {VectorBucketName}-{AccountID}.tosvectors-cn-beijing.volces.com
Authorization: authorization string
Date: Mon, 10 Dec 2025 12:49:14 GMT
{
"vectorBucketName": "test-vector-bucket",
"maxResults": 100,
"nextToken": ""
}
Request parameters and headers
None.
Request body elements
Field name | Type | Required | Example value | Description |
Field name | Type | Required | Example value | Description |
vectorBucketName | String | Yes | test-vector-bucket | Name of the vector bucket containing the vector index. |
maxResults | integer | No | 100 | Maximum number of items returned in the response. Defaults to 100 if not set. Valid range: minimum 1, maximum 500. |
nextToken | String | No | 1b802ff5test-index-3 | previous page token. used to fetch the next page of results. length limit: minimum 1, maximum 512. |
prefix | String | No | test | Limit the response to vector indexes starting with the specified prefix. Length limit: minimum 1 and maximum 63. |
Response headers
Response body elements
If the operation succeeds, the service returns an HTTP 200 response along with the following response body elements.
Field name | Type | Example value | Description |
Field name | Type | Example value | Description |
indexes | IndexSummary[] | See the table below | Vector index list. |
nextToken | String | 1b802ff5test-index-3 | Next page token. If this token appears in the response, more results are available. You can use this token in the next request to retrieve the next page of results. Length limit: minimum 1, maximum 512 characters. |
IndexSummary struct parameter description:
Name | Type | Example value | Description |
Name | Type | Example value | Description |
vectorBucketName | String | test-vector-bucket | vector bucket name |
indexName | String | test-index | Vector index name. |
creationTime | number | 1764580825 | Vector index creation time. |
indexTrn | String | trn:tosvectors:cn-beijing:11111:bucket/test-vector-bucket/index/test-index | TRN of the vector index. |
Sample request
POST /ListIndexes HTTP/1.1
Host: test-vector-bucket-1111.tosvectors-cn-beijing.volces.com
Authorization: authorization string
Date: Mon, 10 Dec 2025 12:49:14 GMT
{
"vectorBucketName": "test-vector-bucket",
"maxResults": 5,
"nextToken": ""
}
Sample response
HTTP/1.1 200 OK
x-tos-id-2: 797014003c90a9b694003c9-b15a995-1vV80n-CVB-cb-tos-1az-front-azd-vectors-2
x-tos-request-id: 797014003c90a9b694003c9-b15a995-1vV80n-CVB-cb-tos-1az-front-azd-vectors-2
Date: Mon, 10 Dec 2025 12:49:14 GMT
server: TosServer
Content-Length: 199
{
"indexes": [
{
"creationTime": 1765804225,
"indexName": "test-index",
"indexTrn": "trn:tosvectors:cn-beijing:1111:bucket/test-vector-bucket/index/test-index",
"vectorBucketName": "test-vector-bucket"
}
]
}
Last updated: 2026.01.04 14:21:24
All rights reserved © Beijing Volcano Engine Technology Co., Ltd2024
