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Bucket Extraction

Last updated: 2024-02-02 14:36:36

    Overview

    This document provides an overview of APIs and SDK code samples related to bucket extraction.
    API
    Operation
    Description
    Checking a bucket and its permissions
    Checks whether a bucket exists and whether you have permission to access it

    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, HTTP status code 200 will be returned.
    If you do not have permission to read the bucket, HTTP status code 403 will be returned.
    If the bucket does not exist, HTTP status code 404 will be returned.

    Sample code

    using COSXML.Model.Bucket;
    using COSXML.Auth;
    using System;
    using COSXML;
    
    namespace COSSnippet
    {
    public class HeadBucketModel {
    
    private CosXml cosXml;
    
    HeadBucketModel() {
    CosXmlConfig config = new CosXmlConfig.Builder()
    .SetRegion("COS_REGION") // Set the default region. For abbreviations of COS regions, visit https://www.tencentcloud.com/document/product/436/6224?from_cn_redirect=1.
    .Build();
    
    string secretId = "SECRET_ID"; // SecretId of the TencentCloud API. For more information about how to obtain the API key, see https://console.tencentcloud.com/cam/capi.
    string secretKey = "SECRET_KEY"; // SecretKey of the TencentCloud API. For more information about how to obtain the API key, see https://console.tencentcloud.com/cam/capi.
    long durationSecond = 600; // Validity period of the request signature in seconds
    QCloudCredentialProvider qCloudCredentialProvider = new DefaultQCloudCredentialProvider(secretId,
    secretKey, durationSecond);
    
    this.cosXml = new CosXmlServer(config, qCloudCredentialProvider);
    }
    
    /// Query the bucket information.
    public void HeadBucket()
    {
    //.cssg-snippet-body-start:[head-bucket]
    try
    {
    // Bucket name in the format of BucketName-APPID. You can get APPID by referring to https://console.tencentcloud.com/developer.
    string bucket = "examplebucket-1250000000";
    HeadBucketRequest request = new HeadBucketRequest(bucket);
    // Execute the request
    HeadBucketResult result = cosXml.HeadBucket(request);
    // Request succeeded
    Console.WriteLine(result.GetResultInfo());
    }
    catch (COSXML.CosException.CosClientException clientEx)
    {
    // Request failed
    Console.WriteLine("CosClientException: " + clientEx);
    }
    catch (COSXML.CosException.CosServerException serverEx)
    {
    // Request failed
    Console.WriteLine("CosServerException: " + serverEx.GetInfo());
    }
    
    //.cssg-snippet-body-end
    }
    // .cssg-methods-pragma
    
    static void Main(string[] args)
    {
    HeadBucketModel m = new HeadBucketModel();
    
    /// Query the bucket information.
    m.HeadBucket();
    // .cssg-methods-pragma
    }
    }
    }
    Note:
    For the complete sample, go to GitHub.
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