Object Storage Service:List objects (C SDK)

#include "oss_api.h"
#include "aos_http_io.h"
/* Replace yourEndpoint with the endpoint of the region where the bucket is located. For example, if the bucket is in the China (Hangzhou) region, set the endpoint to https://oss-cn-hangzhou.aliyuncs.com. */
const char *endpoint = "yourEndpoint";
/* Replace with your bucket name, for example, examplebucket. */
const char *bucket_name = "examplebucket";
/* Replace yourRegion with the region where the bucket is located. For example, if the bucket is in the China (Hangzhou) region, set the region to cn-hangzhou. */
const char *region = "yourRegion";
void init_options(oss_request_options_t *options)
{
    options->config = oss_config_create(options->pool);
    /* Initialize the aos_string_t type with a char* string. */
    aos_str_set(&options->config->endpoint, endpoint);
    /* Obtain access credentials from environment variables. Before you run this sample code, make sure that the OSS_ACCESS_KEY_ID and OSS_ACCESS_KEY_SECRET environment variables are set. */
    aos_str_set(&options->config->access_key_id, getenv("OSS_ACCESS_KEY_ID"));
    aos_str_set(&options->config->access_key_secret, getenv("OSS_ACCESS_KEY_SECRET"));
    // Configure the following two additional parameters.
    aos_str_set(&options->config->region, region);
    options->config->signature_version = 4;
    /* Specifies whether a CNAME is used. A value of 0 indicates that no CNAME is used. */
    options->config->is_cname = 0;
    /* Set network parameters, such as the timeout period. */
    options->ctl = aos_http_controller_create(options->pool, 0);
}
int main(int argc, char *argv[])
{
    /* Call the aos_http_io_initialize method at the program entry to initialize global resources such as the network and memory. */
    if (aos_http_io_initialize(NULL, 0) != AOSE_OK) {
        exit(1);
    }
    /* The memory pool for memory management, which is equivalent to apr_pool_t. The implementation code is in the apr library. */
    aos_pool_t *pool;
    /* Create a new memory pool. The second parameter is NULL, which indicates that the new memory pool does not inherit from another memory pool. */
    aos_pool_create(&pool, NULL);
    /* Create and initialize options. This parameter contains global configurations, such as endpoint, access_key_id, access_key_secret, is_cname, and curl. */
    oss_request_options_t *oss_client_options;
    /* Allocate memory for options in the memory pool. */
    oss_client_options = oss_request_options_create(pool);
    /* Initialize the client options oss_client_options. */
    init_options(oss_client_options);
    /* Initialize parameters. */
    aos_string_t bucket;
    aos_status_t *resp_status = NULL; 
    oss_list_object_params_t *params = NULL;
    oss_list_object_content_t *content = NULL;
    int size = 0;
    char *line = NULL;
    char *nextMarker = "";
    aos_str_set(&bucket, bucket_name);
    params = oss_create_list_object_params(pool);
    params->max_ret = 100;
    aos_str_set(&params->marker, nextMarker);
    printf("Object\tSize\tLastModified\n");
    /* List all objects. */
    do {
        resp_status = oss_list_object(oss_client_options, &bucket, params, NULL);
        if (!aos_status_is_ok(resp_status))
        {
            printf("list object failed\n");
            break;
        }
        aos_list_for_each_entry(oss_list_object_content_t, content, &params->object_list, node) {
            ++size;
            line = apr_psprintf(pool, "%.*s\t%.*s\t%.*s\n", content->key.len, content->key.data, 
                content->size.len, content->size.data, 
                content->last_modified.len, content->last_modified.data);
            printf("%s", line);
        }
        nextMarker = apr_psprintf(pool, "%.*s", params->next_marker.len, params->next_marker.data);
        aos_str_set(&params->marker, nextMarker);
        aos_list_init(&params->object_list);
        aos_list_init(&params->common_prefix_list);
    } while (params->truncated == AOS_TRUE);
    printf("Total %d\n", size);
    /* Release the memory pool. This releases the memory allocated to various resources during the request. */
    aos_pool_destroy(pool);
    /* Release the previously allocated global resources. */
    aos_http_io_deinitialize();
    return 0;
}

Object                  Size    LastModified
exampleobject.txt       1       2023-08-15T06:53:44.000Z
fun/                    0       2023-08-15T06:22:02.000Z
fun/movie/              0       2023-08-15T06:22:29.000Z
fun/movie/001.avi       11      2023-08-15T06:22:37.000Z
fun/movie/007.avi       0       2023-08-15T06:22:37.000Z
fun/test.jpg           57210    2023-08-15T06:22:15.000Z
oss.jpg                 9       2023-08-15T06:23:20.000Z
Total 7

#include "oss_api.h"
#include "aos_http_io.h"
/* Replace yourEndpoint with the endpoint of the region where the bucket is located. For example, if the bucket is in the China (Hangzhou) region, set the endpoint to https://oss-cn-hangzhou.aliyuncs.com. */
const char *endpoint = "yourEndpoint";
/* Replace with your bucket name, for example, examplebucket. */
const char *bucket_name = "examplebucket";
/* Replace yourRegion with the region where the bucket is located. For example, if the bucket is in the China (Hangzhou) region, set the region to cn-hangzhou. */
const char *region = "yourRegion";
void init_options(oss_request_options_t *options)
{
    options->config = oss_config_create(options->pool);
    /* Use aos_str_set to initialize the aos_string_t type with a char* string. */
    aos_str_set(&options->config->endpoint, endpoint);
    /* Obtain access credentials from environment variables. Before you run this sample code, make sure that the OSS_ACCESS_KEY_ID and OSS_ACCESS_KEY_SECRET environment variables are set. */
    aos_str_set(&options->config->access_key_id, getenv("OSS_ACCESS_KEY_ID"));
    aos_str_set(&options->config->access_key_secret, getenv("OSS_ACCESS_KEY_SECRET"));
    // Configure the following two additional parameters.
    aos_str_set(&options->config->region, region);
    options->config->signature_version = 4;
    /* Specifies whether a CNAME is used. A value of 0 indicates that no CNAME is used. */
    options->config->is_cname = 0;
    /* Set network parameters, such as the timeout period. */
    options->ctl = aos_http_controller_create(options->pool, 0);
}
int main(int argc, char *argv[])
{
    /* Call the aos_http_io_initialize method at the program entry. This method initializes global resources, such as the network and memory. */
    if (aos_http_io_initialize(NULL, 0) != AOSE_OK) {
        exit(1);
    }
    /* The memory pool for memory management, which is equivalent to apr_pool_t. The implementation code is in the apr library. */
    aos_pool_t *pool;
    /* Create a new memory pool. The second parameter is NULL, which indicates that the new memory pool does not inherit from another memory pool. */
    aos_pool_create(&pool, NULL);
    /* Create and initialize options. This parameter contains global configurations, such as endpoint, access_key_id, access_key_secret, is_cname, and curl. */
    oss_request_options_t *oss_client_options;
    /* The memory for options is allocated from the pool. When the pool is released, the memory for options is also released. You do not need to release the memory for options separately. */
    oss_client_options = oss_request_options_create(pool);
    /* Initialize the client options oss_client_options. */
    init_options(oss_client_options);
    /* Initialize parameters. */
    aos_string_t bucket;
    aos_status_t *resp_status = NULL; 
    oss_list_object_params_t *params = NULL;
    oss_list_object_content_t *content = NULL;
    int size = 0;
    char *line = NULL;
    /* List objects with the specified prefix. */
    char *prefix = "fun/";
    char *nextMarker = "";
    aos_str_set(&bucket, bucket_name);
    params = oss_create_list_object_params(pool);
    params->max_ret = 100;
    aos_str_set(&params->prefix, prefix);
    aos_str_set(&params->marker, nextMarker);
    printf("Object\tSize\tLastModified\n");
    /* List all objects. */
    do {
        resp_status = oss_list_object(oss_client_options, &bucket, params, NULL);
        if (!aos_status_is_ok(resp_status))
        {
            printf("list object failed\n");
            break;
        }
        aos_list_for_each_entry(oss_list_object_content_t, content, &params->object_list, node) {
            ++size;
            line = apr_psprintf(pool, "%.*s\t%.*s\t%.*s\n", content->key.len, content->key.data, 
                content->size.len, content->size.data, 
                content->last_modified.len, content->last_modified.data);
            printf("%s", line);
        }
        nextMarker = apr_psprintf(pool, "%.*s", params->next_marker.len, params->next_marker.data);
        aos_str_set(&params->marker, nextMarker);
        aos_list_init(&params->object_list);
        aos_list_init(&params->common_prefix_list);
    } while (params->truncated == AOS_TRUE);
    printf("Total %d\n", size);
    /* After a request is complete, release the memory pool. This releases the memory allocated to various resources during the request. */
    aos_pool_destroy(pool);
    /* Before the program exits, call the aos_http_io_deinitialize method to release the previously allocated global resources. */
    aos_http_io_deinitialize();
    return 0;
}

Object             Size     LastModified
fun/                0       2023-08-15T06:22:02.000Z
fun/movie/          0       2023-08-15T06:22:29.000Z
fun/movie/001.avi   11      2023-08-15T06:22:37.000Z
fun/movie/007.avi   0       2023-08-15T06:22:37.000Z
fun/test.jpg       57210   2023-08-15T06:22:15.000Z
Total 5

#include "oss_api.h"
#include "aos_http_io.h"
/* Replace yourEndpoint with the endpoint of the region where the bucket is located. For example, if the bucket is in the China (Hangzhou) region, set the endpoint to https://oss-cn-hangzhou.aliyuncs.com. */
const char *endpoint = "yourEndpoint";
/* Replace with your bucket name, for example, examplebucket. */
const char *bucket_name = "examplebucket";
/* Replace yourRegion with the region where the bucket is located. For example, if the bucket is in the China (Hangzhou) region, set the region to cn-hangzhou. */
const char *region = "yourRegion";
void init_options(oss_request_options_t *options)
{
    options->config = oss_config_create(options->pool);
    /* Use aos_str_set to initialize the aos_string_t type with a char* string. */
    aos_str_set(&options->config->endpoint, endpoint);
    /* Obtain access credentials from environment variables. Before you run this sample code, make sure that the OSS_ACCESS_KEY_ID and OSS_ACCESS_KEY_SECRET environment variables are set. */
    aos_str_set(&options->config->access_key_id, getenv("OSS_ACCESS_KEY_ID"));
    aos_str_set(&options->config->access_key_secret, getenv("OSS_ACCESS_KEY_SECRET"));
    // Configure the following two additional parameters.
    aos_str_set(&options->config->region, region);
    options->config->signature_version = 4;
    /* Specifies whether a CNAME is used. A value of 0 indicates that no CNAME is used. */
    options->config->is_cname = 0;
    /* Set network parameters, such as the timeout period. */
    options->ctl = aos_http_controller_create(options->pool, 0);
}
int main(int argc, char *argv[])
{
    /* Call the aos_http_io_initialize method at the program entry. This method initializes global resources, such as the network and memory. */
    if (aos_http_io_initialize(NULL, 0) != AOSE_OK) {
        exit(1);
    }
    /* The memory pool for memory management, which is equivalent to apr_pool_t. The implementation code is in the apr library. */
    aos_pool_t *pool;
    /* Create a new memory pool. The second parameter is NULL, which indicates that the new memory pool does not inherit from another memory pool. */
    aos_pool_create(&pool, NULL);
    /* Create and initialize options. This parameter contains global configurations, such as endpoint, access_key_id, access_key_secret, is_cname, and curl. */
    oss_request_options_t *oss_client_options;
    /* The memory for options is allocated from the pool. When the pool is released, the memory for options is also released. You do not need to release the memory for options separately. */
    oss_client_options = oss_request_options_create(pool);
    /* Initialize the client options oss_client_options. */
    init_options(oss_client_options);
    /* Initialize parameters. */
    aos_string_t bucket;
    aos_status_t *resp_status = NULL; 
    oss_list_object_params_t *params = NULL;
    oss_list_object_content_t *content = NULL;
    oss_list_object_common_prefix_t *commonPrefix = NULL;
    int size = 0;
    char *line = NULL;
    /* List objects with the specified prefix. */
    char *prefix = "fun/";
    char *nextMarker = "";
    /* Set the folder separator to a forward slash (/). */
    char *delimiter = "/";
    aos_str_set(&bucket, bucket_name);
    params = oss_create_list_object_params(pool);
    params->max_ret = 100;
    aos_str_set(&params->prefix, prefix);
    aos_str_set(&params->marker, nextMarker);
    aos_str_set(&params->delimiter, delimiter);
    printf("Object\tSize\tLastModified\n");
    /*List all objects.*/
    do {
        resp_status = oss_list_object(oss_client_options, &bucket, params, NULL);
        if (!aos_status_is_ok(resp_status))
        {
            printf("list object failed\n");
            break;
        }
        aos_list_for_each_entry(oss_list_object_content_t, content, &params->object_list, node) {
            ++size;
            line = apr_psprintf(pool, "%.*s\t%.*s\t%.*s\n", content->key.len, content->key.data, 
                content->size.len, content->size.data, 
                content->last_modified.len, content->last_modified.data);
            printf("%s", line);
        }
        aos_list_for_each_entry(oss_list_object_common_prefix_t, commonPrefix, &params->common_prefix_list, node) {
            line = apr_psprintf(pool, "%.*s", commonPrefix->prefix.len, commonPrefix->prefix.data);
            printf("%s", line);
        }
        nextMarker = apr_psprintf(pool, "%.*s", params->next_marker.len, params->next_marker.data);
        aos_str_set(&params->marker, nextMarker);
        aos_list_init(&params->object_list);
        aos_list_init(&params->common_prefix_list);
    } while (params->truncated == AOS_TRUE);
    printf("Total %d\n", size);
    /* After a request is complete, release the memory pool. This releases the memory allocated to various resources during the request. */
    aos_pool_destroy(pool);
    /* Before the program exits, call the aos_http_io_deinitialize method to release the previously allocated global resources. */
    aos_http_io_deinitialize();
    return 0;
}

Object          Size    LastModified
fun/             0       2023-08-15T06:22:02.000Z
fun/test.jpg    57210   2023-08-15T06:22:15.000Z
fun/movie/      0       2023-08-15T06:22:29.000Z
Total 3

#include "oss_api.h"
#include "aos_http_io.h"
/* Replace yourEndpoint with the endpoint of the region where the bucket is located. For example, if the bucket is in the China (Hangzhou) region, set the endpoint to https://oss-cn-hangzhou.aliyuncs.com. */
const char *endpoint = "yourEndpoint";
/* Replace with your bucket name, for example, examplebucket. */
const char *bucket_name = "examplebucket";
/* Replace yourRegion with the region where the bucket is located. For example, if the bucket is in the China (Hangzhou) region, set the region to cn-hangzhou. */
const char *region = "yourRegion";

void init_options(oss_request_options_t *options)
{
    options->config = oss_config_create(options->pool);
    /* Use aos_str_set to initialize the aos_string_t type with a char* string. */
    aos_str_set(&options->config->endpoint, endpoint);
    /* Obtain access credentials from environment variables. Before you run this sample code, make sure that the OSS_ACCESS_KEY_ID and OSS_ACCESS_KEY_SECRET environment variables are set. */
    aos_str_set(&options->config->access_key_id, getenv("OSS_ACCESS_KEY_ID"));
    aos_str_set(&options->config->access_key_secret, getenv("OSS_ACCESS_KEY_SECRET"));
    // Configure the following two additional parameters.
    aos_str_set(&options->config->region, region);
    options->config->signature_version = 4;
    /* Specifies whether a CNAME is used. A value of 0 indicates that no CNAME is used. */
    options->config->is_cname = 0;
    /* Set network parameters, such as the timeout period. */
    options->ctl = aos_http_controller_create(options->pool, 0);
}

int64_t calculateFolderLength (aos_string_t bucketName, char* folder)
{
    int64_t size = 0;
    oss_list_object_params_t *params = NULL;
    char *nextMarker = "";
    aos_status_t *resp_status = NULL;
    aos_pool_t *p = NULL;
    oss_request_options_t *options = NULL;
    oss_list_object_content_t* content = NULL;
    aos_pool_create(&p, NULL);
    options = oss_request_options_create(p);
    params = oss_create_list_object_params(p);
    params->max_ret = 10;
    aos_str_set(&params->prefix, folder);
    aos_str_set(&params->marker, nextMarker);

    /* List all objects. */
    do {
        resp_status = oss_list_object(options, &bucketName, params, NULL);
        if (!aos_status_is_ok(resp_status))
        {
            printf("list object failed\n");
            break;
        }
        aos_list_for_each_entry(oss_list_object_content_t, content, &params->object_list, node) {
            size += content->size.len;
        }
        nextMarker = apr_psprintf(p, "%.*s", params->next_marker.len, params->next_marker.data);
        aos_str_set(&params->marker, nextMarker);
        aos_list_init(&params->object_list);
        aos_list_init(&params->common_prefix_list);
    } while (params->truncated == AOS_TRUE); 

    /* After a request is complete, release the memory pool. This releases the memory allocated to various resources during the request. */
    aos_pool_destroy(p);
    return size;
}

int main(int argc, char *argv[])
{
    /* Call the aos_http_io_initialize method at the program entry. This method initializes global resources, such as the network and memory. */
    if (aos_http_io_initialize(NULL, 0) != AOSE_OK) {
        exit(1);
    }
    /* The memory pool for memory management, which is equivalent to apr_pool_t. The implementation code is in the apr library. */
    aos_pool_t *pool;
    /* Create a new memory pool. The second parameter is NULL, which indicates that the new memory pool does not inherit from another memory pool. */
    aos_pool_create(&pool, NULL);
    /* Create and initialize options. This parameter contains global configurations, such as endpoint, access_key_id, access_key_secret, is_cname, and curl. */
    oss_request_options_t *oss_client_options;
    /* The memory for options is allocated from the pool. When the pool is released, the memory for options is also released. You do not need to release the memory for options separately. */
    oss_client_options = oss_request_options_create(pool);
    /* Initialize the client options oss_client_options. */
    init_options(oss_client_options);
    /* Initialize parameters. */
    aos_string_t bucket;
    aos_status_t *resp_status = NULL; 
    oss_list_object_params_t *params = NULL;
    oss_list_object_content_t *content = NULL;
    oss_list_object_common_prefix_t *commonPrefix = NULL;
    int size = 0;
    char *line = NULL;
    /* List objects with the specified prefix. */
    char *prefix = "fun/";
    char *nextMarker = "";
    /* Set the folder separator to a forward slash (/). */
    char *delimiter = "/";
    aos_str_set(&bucket, bucket_name);
    params = oss_create_list_object_params(pool);
    params->max_ret = 100;
    aos_str_set(&params->prefix, prefix);
    aos_str_set(&params->marker, nextMarker);
    aos_str_set(&params->delimiter, delimiter);
    printf("Object\tSize\tLastModified\n");
    /*List all objects.*/
    do {
        resp_status = oss_list_object(oss_client_options, &bucket, params, NULL);
        if (!aos_status_is_ok(resp_status))
        {
            printf("list object failed\n");
            break;
        }
        aos_list_for_each_entry(oss_list_object_content_t, content, &params->object_list, node) {
            ++size;
            line = apr_psprintf(pool, "%.*s\t%.*s\t%.*s\n", content->key.len, content->key.data, 
                content->size.len, content->size.data, 
                content->last_modified.len, content->last_modified.data);
            printf("%s", line);
        }
        aos_list_for_each_entry(oss_list_object_common_prefix_t, commonPrefix, &params->common_prefix_list, node) {
            line = apr_psprintf(pool, "%.*s", commonPrefix->prefix.len, commonPrefix->prefix.data);
            int64_t size = calculateFolderLength(bucket, commonPrefix->prefix.data);
            printf("Total %ld\n", size);
        }
        nextMarker = apr_psprintf(pool, "%.*s", params->next_marker.len, params->next_marker.data);
        aos_str_set(&params->marker, nextMarker);
        aos_list_init(&params->object_list);
        aos_list_init(&params->common_prefix_list);
    } while (params->truncated == AOS_TRUE);
    printf("Total %d\n", size);
    /* After a request is complete, release the memory pool. This releases the memory allocated to various resources during the request. */
    aos_pool_destroy(pool);
    /* Before the program exits, call the aos_http_io_deinitialize method to release the previously allocated global resources. */
    aos_http_io_deinitialize();
    return 0;
}

Object          Size    LastModified
fun/            0       2023-08-15T06:22:02.000Z
fun/test.jpg    57210   2023-08-15T06:22:15.000Z