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Object Access URL

Terakhir diperbarui:2024-02-01 18:01:21

    Overview

    This document provides an overview of the API and sample code for getting an object access URL.

    Getting an Object Access URL

    Description

    The API is used to get object access URLs for anonymous download or distribution.

    Method prototype

    const char *cos_gen_object_url(const cos_request_options_t *options,
    const cos_string_t *bucket,
    const cos_string_t *object)

    Parameter description

    Parameter
    Description
    Type
    Required
    options
    COS request options
    Struct
    Yes
    Bucket
    Bucket name in the format of BucketName-APPID
    Struct
    Yes
    object
    Object key, the unique identifier of an object in a bucket. For example, if the object endpoint is examplebucket-1250000000.cos.ap-guangzhou.myqcloud.com/doc/pic.jpg, its object key is doc/pic.jpg
    String
    Yes

    Response description

    An object access URL is returned upon success.

    Sample request

    #include "cos_http_io.h"
    #include "cos_api.h"
    #include "cos_log.h"
    
    // `endpoint` is the COS access domain name. For more information, see https://www.tencentcloud.com/document/product/436/6224.
    static char TEST_COS_ENDPOINT[] = "cos.ap-guangzhou.myqcloud.com";
    // A developer-owned secret ID/key used for the project. It can be obtained at https://console.tencentcloud.com/cam/capi.
    static char *TEST_ACCESS_KEY_ID; // Your SecretId
    static char *TEST_ACCESS_KEY_SECRET; // Your SecretKey
    // A unique user-level resource identifier for COS access. It can be obtained at https://console.tencentcloud.com/cam/capi.
    static char TEST_APPID[] = "<APPID>"; // Your APPID
    // COS bucket name, in the format of [bucket]-[appid], for example `mybucket-1253666666`. It can be obtained at https://console.tencentcloud.com/cos5/bucket.
    static char TEST_BUCKET_NAME[] = "<bucketname-appid>";
    // A unique identifier of an object stored in COS. For more information about objects and object keys, please see https://www.tencentcloud.com/document/product/436/13324.
    static char TEST_OBJECT_NAME1[] = "1.txt";
    
    void init_test_config(cos_config_t *config, int is_cname)
    {
    cos_str_set(&config->endpoint, TEST_COS_ENDPOINT);
    cos_str_set(&config->access_key_id, TEST_ACCESS_KEY_ID);
    cos_str_set(&config->access_key_secret, TEST_ACCESS_KEY_SECRET);
    cos_str_set(&config->appid, TEST_APPID);
    config->is_cname = is_cname;
    }
    
    void init_test_request_options(cos_request_options_t *options, int is_cname)
    {
    options->config = cos_config_create(options->pool);
    init_test_config(options->config, is_cname);
    options->ctl = cos_http_controller_create(options->pool, 0);
    }
    
    void test_gen_object_url()
    {
    cos_pool_t *p = NULL;
    int is_cname = 0;
    cos_request_options_t *options = NULL;
    cos_string_t bucket;
    cos_string_t object;
    
    cos_pool_create(&p, NULL);
    options = cos_request_options_create(p);
    init_test_request_options(options, is_cname);
    cos_str_set(&bucket, TEST_BUCKET_NAME);
    cos_str_set(&object, TEST_OBJECT_NAME1);
    
    printf("url:%s\\n", cos_gen_object_url(options, &bucket, &object));
    
    cos_pool_destroy(p);
    }
    
    int main(int argc, char *argv[])
    {
    // Get SecretId and SecretKey from environment variables
    TEST_ACCESS_KEY_ID = getenv("COS_SECRETID");
    TEST_ACCESS_KEY_SECRET = getenv("COS_SECRETKEY");
    
    if (cos_http_io_initialize(NULL, 0) != COSE_OK) {
    exit(1);
    }
    
    // Set the log level. Default value: `COS_LOG_WARN`
    cos_log_set_level(COS_LOG_WARN);
    
    // Set log output. Default value: `stderr`
    cos_log_set_output(NULL);
    
    test_gen_object_url();
    
    cos_http_io_deinitialize();
    
    return 0;
    }
    
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