tencent cloud

Cloud Object Storage

Release Notes and Announcements
Release Notes
Announcements
Product Introduction
Overview
Features
Use Cases
Strengths
Concepts
Regions and Access Endpoints
Specifications and Limits
Service Regions and Service Providers
Billing
Billing Overview
Billing Method
Billable Items
Free Tier
Billing Examples
Viewing and Downloading Bill
Payment Overdue
FAQs
Getting Started
Console
Getting Started with COSBrowser
User Guide
Creating Request
Bucket
Object
Data Management
Batch Operation
Global Acceleration
Monitoring and Alarms
Operations Center
Data Processing
Content Moderation
Smart Toolbox
Data Processing Workflow
Application Integration
User Tools
Tool Overview
Installation and Configuration of Environment
COSBrowser
COSCLI (Beta)
COSCMD
COS Migration
FTP Server
Hadoop
COSDistCp
HDFS TO COS
GooseFS-Lite
Online Tools
Diagnostic Tool
Use Cases
Overview
Access Control and Permission Management
Performance Optimization
Accessing COS with AWS S3 SDK
Data Disaster Recovery and Backup
Domain Name Management Practice
Image Processing
Audio/Video Practices
Workflow
Direct Data Upload
Content Moderation
Data Security
Data Verification
Big Data Practice
COS Cost Optimization Solutions
Using COS in the Third-party Applications
Migration Guide
Migrating Local Data to COS
Migrating Data from Third-Party Cloud Storage Service to COS
Migrating Data from URL to COS
Migrating Data Within COS
Migrating Data Between HDFS and COS
Data Lake Storage
Cloud Native Datalake Storage
Metadata Accelerator
GooseFS
Data Processing
Data Processing Overview
Image Processing
Media Processing
Content Moderation
File Processing Service
File Preview
Troubleshooting
Obtaining RequestId
Slow Upload over Public Network
403 Error for COS Access
Resource Access Error
POST Object Common Exceptions
API Documentation
Introduction
Common Request Headers
Common Response Headers
Error Codes
Request Signature
Action List
Service APIs
Bucket APIs
Object APIs
Batch Operation APIs
Data Processing APIs
Job and Workflow
Content Moderation APIs
Cloud Antivirus API
SDK Documentation
SDK Overview
Preparations
Android SDK
C SDK
C++ SDK
.NET(C#) SDK
Flutter SDK
Go SDK
iOS SDK
Java SDK
JavaScript SDK
Node.js SDK
PHP SDK
Python SDK
React Native SDK
Mini Program SDK
Error Codes
Harmony SDK
Endpoint SDK Quality Optimization
Security and Compliance
Data Disaster Recovery
Data Security
Cloud Access Management
FAQs
Popular Questions
General
Billing
Domain Name Compliance Issues
Bucket Configuration
Domain Names and CDN
Object Operations
Logging and Monitoring
Permission Management
Data Processing
Data Security
Pre-signed URL Issues
SDKs
Tools
APIs
Agreements
Service Level Agreement
Privacy Policy
Data Processing And Security Agreement
Contact Us
Glossary
DokumentasiCloud Object StorageSDK DocumentationNode.js SDKBucket Operations

Bucket Operations

PDF
Mode fokus
Ukuran font
Terakhir diperbarui: 2024-02-04 11:37:31

Overview

This document provides an overview of APIs and SDK code samples related to basic bucket operations.
API
Operation
Description
Querying a bucket list
Queries the list of all buckets under a specified account
Creating a bucket
Creates a bucket under a specified account
Checking a bucket and its permissions
Checks whether a bucket exists and whether you have permission to access it
Deleting a bucket
Deletes an empty bucket from a specified account

Querying a Bucket List

Description

This API (GET Service) is used to query the list of all buckets under a requester's account or in a specified region. For more information, please see GET Service.

Sample code

Sample 1. Listing all buckets
cos.getService(function(err, data) {
    console.log(err || data);
});
Sample 2. Listing all buckets in a specified region
cos.getService({
    Region: 'COS_REGION',
}, function(err, data) {
    console.log(err || data);
});

Parameter description

Parameter
Description
Type
Required
Region
Bucket region. For the enumerated values, please see Regions and Access Endpoints.
String
No

Callback function description

function(err, data) { ... }
Parameter
Description
Type
err
Object returned when an error (network error or service error) occurs. If the request is successful, this parameter is left empty. For more information, please see Error Codes.
Object
- statusCode
HTTP status code, such as 200, 403, and 404
Number
- headers
Headers
Object
data
Content returned when the request is successful. If the request fails, this parameter is empty.
Object
- statusCode
HTTP status code, such as 200, 403, and 404
Number
- headers
Headers
Object
- Owner
Object representing the bucket owner
Object
- - ID
Complete ID of the bucket owner in the format: qcs::cam::uin/[OwnerUin]:uin/[OwnerUin], such as qcs::cam::uin/100000000001:uin/100000000001
string
- - DisplayName
Name of the bucket owner
String
- Buckets
Bucket list
Object
- - Name
Bucket name in the format of <BucketName-APPID>, such as examplebucket-1250000000
String
- - Location
Bucket region, such as ap-guangzhou, ap-beijing, and ap-hongkong. For more information, please see Regions and Access Endpoints.
String
- - CreationDate
Time when the bucket was created, in ISO 8601 format, such as 2019-05-24T10:56:40Z
string

Creating a Bucket

Description

This API (PUT Bucket) is used to create a bucket under a specified account.

Sample code

cos.putBucket({
    Bucket: 'examplebucket-1250000000',
    Region: 'COS_REGION'
}, function(err, data) {
    console.log(err || data);
});

Parameter description

Parameter
Description
Type
Required
Bucket
Bucket name in the format of BucketName-APPID
String
Yes
Region
Bucket region. For the enumerated values, please see Regions and Access Endpoints.
String
Yes
ACL
Defines the access control list (ACL) attribute of the bucket. For enumerated values, such as private and public-read, see the "Preset ACLs for buckets" section in ACL Overview. Default value: private
String
No
GrantRead
Grants a user read permission in the format: id=" ",id=" ".
To authorize a sub-account, use id="qcs::cam::uin/<OwnerUin>:uin/<SubUin>".
To authorize a root account, use id="qcs::cam::uin/<OwnerUin>:uin/<OwnerUin>".
Example: 'id="qcs::cam::uin/100000000001:uin/100000000001", id="qcs::cam::uin/100000000001:uin/100000000011"'
String
No
GrantWrite
Grants a user write permission in the format: id=" ",id=" ".
To authorize a sub-account, use id="qcs::cam::uin/<OwnerUin>:uin/<SubUin>".
To authorize a root account, use id="qcs::cam::uin/<OwnerUin>:uin/<OwnerUin>".
Examples: 'id="qcs::cam::uin/100000000001:uin/100000000001", id="qcs::cam::uin/100000000001:uin/100000000011"'
String
No
GrantReadAcp
Grants a user read permission for a bucket’s ACL and policies in the format: id=" ",id=" ".
To authorize a sub-account, use id="qcs::cam::uin/<OwnerUin>:uin/<SubUin>".
To authorize a root account, use id="qcs::cam::uin/<OwnerUin>:uin/<OwnerUin>".
Example: 'id="qcs::cam::uin/100000000001:uin/100000000001", id="qcs::cam::uin/100000000001:uin/100000000011"'
String
No
GrantWriteAcp
Grants a user write permission for a bucket’s ACL and policies in the format: id=" ",id=" ".
To authorize a sub-account, use id="qcs::cam::uin/<OwnerUin>:uin/<SubUin>".
To authorize a root account, use id="qcs::cam::uin/<OwnerUin>:uin/<OwnerUin>".
Examples: 'id="qcs::cam::uin/100000000001:uin/100000000001", id="qcs::cam::uin/100000000001:uin/100000000011"'
String
No
GrantFullControl
Grants full permission in the format: id="[OwnerUin]". You can use commas (,) to separate multiple users.
To authorize a sub-account, use id="qcs::cam::uin/<OwnerUin>:uin/<SubUin>".
To authorize a root account, use id="qcs::cam::uin/<OwnerUin>:uin/<OwnerUin>".
Example: 'id="qcs::cam::uin/100000000001:uin/100000000001", id="qcs::cam::uin/100000000001:uin/100000000011"'
String
No

Callback function description

function(err, data) { ... }
Parameter
Description
Type
err
Object returned when an error (network error or service error) occurs. If the request is successful, this parameter is left empty. For more information, please see Error Codes.
Object
- statusCode
HTTP status code, such as 200, 403, and 404
Number
- headers
Headers
Object
data
Content returned when the request is successful. If the request fails, this parameter is empty.
Object
- statusCode
HTTP status code, such as 200, 403, and 404
Number
- headers
Headers
Object

Checking a Bucket and Its Permissions

Description

This API is used to verify whether a bucket exists and whether you have permission to access it.
If the bucket exists and you have permission to read it, the HTTP status code "200" will be returned.
If you do not have permission to read the bucket, the HTTP status code "403" will be returned.
If the bucket does not exist, the HTTP status code "404" will be returned.

Sample code

Extracting bucket information:
cos.headBucket({
    Bucket: 'examplebucket-1250000000', /* Required */
    Region: 'COS_REGION', /* Required */
}, function(err, data) {
    console.log(err || data);
});
Determining whether the bucket exists:
function doesBucketExist() {
    cos.headBucket({
        Bucket: 'examplebucket-1250000000', /* Required */
        Region: 'COS_REGION',     /* Bucket region. Required */
    }, function(err, data) {
        if (data) {
            console.log('The bucket exists.');
        } else if (err.statusCode == 404) {
            console.log('The bucket does not exist.');
        } else if (err.statusCode == 403) {
            console.log ('no permission to read the bucket');
        }
    });
}

Parameter description

Parameter
Description
Type
Required
Bucket
Bucket name in the format of BucketName-APPID
String
Yes
Region
Bucket region. For the enumerated values, please see Regions and Access Endpoints.
String
Yes

Callback function description

function(err, data) { ... }
Parameter
Description
Type
err
Object returned when an error (network error or service error) occurs. If the request is successful, this parameter is left empty. For more information, please see Error Codes.
Object
- statusCode
HTTP status code, such as 200, 403, and 404
Number
- headers
Headers
Object
data
Content returned when the request is successful. If the request fails, this parameter is empty.
Object
- statusCode
HTTP status code, such as 200, 403, and 404
Number
- headers
Headers
Object

Deleting a Bucket

Description

This API is used to delete an empty bucket under a specified account. Note that if the deletion is successful, the HTTP status code 200 or 204 will be returned.
Note:
Before deleting a bucket, please make sure that all the data and incomplete multipart uploads in the bucket have been cleared; otherwise, the bucket cannot be deleted.

Sample code

cos.deleteBucket({
    Bucket: 'examplebucket-1250000000', /* Required */
    Region: 'COS_REGION', /*Required*/
}, function(err, data) {
    console.log(err || data);
});

Parameter description

Parameter
Description
Type
Required
Bucket
Bucket name in the format of BucketName-APPID
String
Yes
Region
Bucket region. For the enumerated values, please see Regions and Access Endpoints.
String
Yes

Callback function description

function(err, data) { ... }

Parameter
Description
Type
err
Object returned when an error (network error or service error) occurs. If the request is successful, this parameter is left empty. For more information, please see Error Codes.
Object
- statusCode
HTTP status code, such as 200, 403, and 404
Number
- headers
Headers
Object
data
Content returned when the request is successful. If the request fails, this parameter is empty.
Object
- statusCode
HTTP status code, such as 200, 403, and 404
Number
- headers
Headers
Object

Topik sebelumnya: Getting StartedTopik selanjutnya: Uploading Object

Bantuan dan Dukungan

Apakah halaman ini membantu?

masukan