tencent cloud

Overview

This document provides an overview of APIs and SDK sample codes for cross-origin resource sharing (CORS).

Setting CORS Configuration

Feature description

This API is used to set the CORS configuration of a specified bucket.

Method prototype

func (s *BucketService) PutCORS(ctx context.Context, opt *BucketPutCORSOptions) (*Response, error)

Sample request

package main
import (
   "context"
   "github.com/tencentyun/cos-go-sdk-v5"
   "net/http"
   "net/url"
   "os"
)
func main(){
   // Bucket name in the format of `BucketName-APPID` (`APPID` is required), which can be viewed in the COS console at https://console.tencentcloud.com/cos5/bucket.
   // Replace it with your region, which can be viewed in the COS console at https://console.tencentcloud.com/. For more information about regions, visit https://www.tencentcloud.com/document/product/436/6224.
   u, _ := url.Parse("https://examplebucket-1250000000.cos.ap-guangzhou.myqcloud.com")
   b := &cos.BaseURL{BucketURL: u}
   client := cos.NewClient(b, &http.Client{
       Transport: &cos.AuthorizationTransport{
           // Get the key from environment variables
           // Environment variable `SECRETID` refers to the user's `SecretId`, which can be viewed in the CAM console at https://console.tencentcloud.com/cam/capi.
           SecretID: os.Getenv("SECRETID"),  // User `SecretId`. We recommend you use a sub-account key and follow the principle of least privilege to reduce risks. For information about how to obtain a sub-account key, visit https://www.tencentcloud.com/document/product/598/37140?from_cn_redirect=1.
           // Environment variable `SECRETKEY` refers to the user's `SecretKey`, which can be viewed in the CAM console at https://console.tencentcloud.com/cam/capi.
           SecretKey: os.Getenv("SECRETKEY"),  // User `SecretKey`. We recommend you use a sub-account key and follow the principle of least privilege to reduce risks. For information about how to obtain a sub-account key, visit  https://www.tencentcloud.com/document/product/598/37140?from_cn_redirect=1.
       },
   })
   opt := &cos.BucketPutCORSOptions{
       Rules: []cos.BucketCORSRule{
           {
               AllowedOrigins: []string{"http://www.qq.com"},
               AllowedMethods: []string{"PUT", "GET"},
               AllowedHeaders: []string{"x-cos-meta-test", "x-cos-xx"},
               MaxAgeSeconds:  500,
               ExposeHeaders:  []string{"x-cos-meta-test1"},
           },
           {
               ID:             "1234",
               AllowedOrigins: []string{"http://www.baidu.com", "twitter.com"},
               AllowedMethods: []string{"PUT", "GET"},
               MaxAgeSeconds:  500,
           },
       },
   }
   _, err := client.Bucket.PutCORS(context.Background(), opt)
   if err != nil{
       panic(err)
   }
}

Field description

type BucketCORSRule struct {
ID             string   
AllowedMethods []string 
AllowedOrigins []string 
AllowedHeaders []string 
MaxAgeSeconds  int      
ExposeHeaders  []string 
}

Querying CORS Configuration

Feature description

This API is used to query the CORS configuration of a bucket.

Method prototype

func (s *BucketService) GetCORS(ctx context.Context) (*BucketGetCORSResult, *Response, error)

Sample request

package main
import (
   "context"
   "github.com/tencentyun/cos-go-sdk-v5"
   "net/http"
   "net/url"
   "os"
)
func main(){
   // Bucket name in the format of `BucketName-APPID` (`APPID` is required), which can be viewed in the COS console at https://console.tencentcloud.com/cos5/bucket.
   // Replace it with your region, which can be viewed in the COS console at https://console.tencentcloud.com/. For more information about regions, visit https://www.tencentcloud.com/document/product/436/6224.
   u, _ := url.Parse("https://examplebucket-1250000000.cos.ap-guangzhou.myqcloud.com")
   b := &cos.BaseURL{BucketURL: u}
   client := cos.NewClient(b, &http.Client{
       Transport: &cos.AuthorizationTransport{
           // Get the key from environment variables
           // Environment variable `SECRETID` refers to the user's `SecretId`, which can be viewed in the CAM console at https://console.tencentcloud.com/cam/capi.
           SecretID: os.Getenv("SECRETID"),  // User `SecretId`. We recommend you use a sub-account key and follow the principle of least privilege to reduce risks. For information about how to obtain a sub-account key, visit https://www.tencentcloud.com/document/product/598/37140?from_cn_redirect=1.
           // Environment variable `SECRETKEY` refers to the user's `SecretKey`, which can be viewed in the CAM console at https://console.tencentcloud.com/cam/capi.
           SecretKey: os.Getenv("SECRETKEY"),  // User `SecretKey`. We recommend you use a sub-account key and follow the principle of least privilege to reduce risks. For information about how to obtain a sub-account key, visit  https://www.tencentcloud.com/document/product/598/37140?from_cn_redirect=1.
       },
   })
   _, _, err := client.Bucket.GetCORS(context.Background())
   if err != nil{
       panic(err)
   }
}

Response description

The result of the request is returned through GetBucketCORSResult.

type BucketCORSRule struct {
ID             string   
AllowedMethods []string 
AllowedOrigins []string 
AllowedHeaders []string 
MaxAgeSeconds  int      
ExposeHeaders  []string 
}

Deleting CORS Configuration

Feature description

This API is used to delete the CORS configuration of a bucket.

Method prototype

func (s *BucketService) DeleteCORS(ctx context.Context) (*Response, error)

Sample request

package main
import (
   "context"
   "github.com/tencentyun/cos-go-sdk-v5"
   "net/http"
   "net/url"
   "os"
)
func main(){
   // Bucket name in the format of `BucketName-APPID` (`APPID` is required), which can be viewed in the COS console at https://console.tencentcloud.com/cos5/bucket.
   // Replace it with your region, which can be viewed in the COS console at https://console.tencentcloud.com/. For more information about regions, visit https://www.tencentcloud.com/document/product/436/6224.
   u, _ := url.Parse("https://examplebucket-1250000000.cos.ap-guangzhou.myqcloud.com")
   b := &cos.BaseURL{BucketURL: u}
   client := cos.NewClient(b, &http.Client{
       Transport: &cos.AuthorizationTransport{
           // Get the key from environment variables
           // Environment variable `SECRETID` refers to the user's `SecretId`, which can be viewed in the CAM console at https://console.tencentcloud.com/cam/capi.
           SecretID: os.Getenv("SECRETID"),  // User `SecretId`. We recommend you use a sub-account key and follow the principle of least privilege to reduce risks. For information about how to obtain a sub-account key, visit https://www.tencentcloud.com/document/product/598/37140?from_cn_redirect=1.
           // Environment variable `SECRETKEY` refers to the user's `SecretKey`, which can be viewed in the CAM console at https://console.tencentcloud.com/cam/capi.
           SecretKey: os.Getenv("SECRETKEY"),  // User `SecretKey`. We recommend you use a sub-account key and follow the principle of least privilege to reduce risks. For information about how to obtain a sub-account key, visit  https://www.tencentcloud.com/document/product/598/37140?from_cn_redirect=1.
       },
   })
   _, err := client.Bucket.DeleteCORS(context.Background())
   if err != nil{
       panic(err)
   }
}