Object Storage Service:List buckets

Java

import com.aliyun.oss.*;
import com.aliyun.oss.common.auth.*;
import com.aliyun.oss.common.comm.SignVersion;
import com.aliyun.oss.model.Bucket;

import java.util.List;

public class Demo {

    public static void main(String[] args) throws Exception {
        // For example, if the bucket is located in the China (Hangzhou) region, set the endpoint to https://oss-cn-hangzhou.aliyuncs.com. 
        String endpoint = "https://oss-cn-hangzhou.aliyuncs.com";
        // Specify the region in which the bucket is located. For example, if the bucket is located in the China (Hangzhou) region, set the region to cn-hangzhou.
        String region = "cn-hangzhou";
        
        // Obtain access credentials from environment variables. Before you run the sample code, make sure that the OSS_ACCESS_KEY_ID and OSS_ACCESS_KEY_SECRET environment variables are configured. 
        EnvironmentVariableCredentialsProvider credentialsProvider = CredentialsProviderFactory.newEnvironmentVariableCredentialsProvider();

        // Create an OSS Client instance. 
        // Call the shutdown method to release associated resources when the OSS Client is no longer in use.
        ClientBuilderConfiguration clientBuilderConfiguration = new ClientBuilderConfiguration();
        clientBuilderConfiguration.setSignatureVersion(SignVersion.V4);        
        OSS ossClient = OSSClientBuilder.create()
        .endpoint(endpoint)
        .credentialsProvider(credentialsProvider)
        .clientConfiguration(clientBuilderConfiguration)
        .region(region)               
        .build();

        try {
            // List all buckets in all regions within the current Alibaba Cloud account. 
            List<Bucket> buckets = ossClient.listBuckets();
            for (Bucket bucket : buckets) {
                System.out.println(" - " + bucket.getName());
            }
        } catch (OSSException oe) {
            System.out.println("Caught an OSSException, which means your request made it to OSS, "
                    + "but was rejected with an error response for some reason.");
            System.out.println("Error Message:" + oe.getErrorMessage());
            System.out.println("Error Code:" + oe.getErrorCode());
            System.out.println("Request ID:" + oe.getRequestId());
            System.out.println("Host ID:" + oe.getHostId());
        } catch (ClientException ce) {
            System.out.println("Caught an ClientException, which means the client encountered "
                    + "a serious internal problem while trying to communicate with OSS, "
                    + "such as not being able to access the network.");
            System.out.println("Error Message:" + ce.getMessage());
        } finally {
            if (ossClient != null) {
                ossClient.shutdown();
            }
        }
    }
}

Python

import argparse
import alibabacloud_oss_v2 as oss

# Create a command line parameter parser and describe the purpose of the script. The example describes how to list all buckets in OSS.
parser = argparse.ArgumentParser(description="list buckets sample")

# Specify the command line parameter --region, which specifies the region in which the bucket is located. This parameter is required.
parser.add_argument('--region', help='The region in which the bucket is located.', required=True)
# Specify the command line parameter --endpoint, which specifies the endpoint that other services can use to access OSS. This parameter is optional.
parser.add_argument('--endpoint', help='The domain names that other services can use to access OSS')

def main():
    # Parse the parameters provided in the command line to obtain the values entered by the user.
    args = parser.parse_args()

    # Load the authentication information required to access OSS from the environment variables.
    credentials_provider = oss.credentials.EnvironmentVariableCredentialsProvider()

    # Use the default configurations of the SDK to create a configuration object and specify the credential provider.
    cfg = oss.config.load_default()
    cfg.credentials_provider = credentials_provider
    cfg.region = args.region

    # If a custom endpoint is provided, modify the endpoint parameter in the configuration object.
    if args.endpoint is not None:
        cfg.endpoint = args.endpoint

    # Use the preceding configuration to initialize the OSSClient instance and allow the instance to interact with OSS.
    client = oss.Client(cfg)

    # Create a paginator to allow the ListBuckets operation to list a large number of buckets.
    paginator = client.list_buckets_paginator()

    # Traverse the listed buckets.
    for page in paginator.iter_page(oss.ListBucketsRequest()):
        # Display the name, location, creation date, and resource group ID of each bucket on each page.
        for o in page.buckets:
            print(f'Bucket: {o.name}, Location: {o.location}, Created: {o.creation_date}, Resource Group ID: {o.resource_group_id}')

# Call the main function to start the processing logic when the script is directly run.
if __name__ == "__main__":
    main() # Specify the entry points in functions of the script. The control program flow starts here.

Go

package main

import (
	"context"
	"flag"
	"log"

	"github.com/aliyun/alibabacloud-oss-go-sdk-v2/oss"
	"github.com/aliyun/alibabacloud-oss-go-sdk-v2/oss/credentials"
)

// Define the global variables
var (
	region string // The region.
)

// Use the init function to initialize command line parameters.
func init() {
	flag.StringVar(®ion, "region", "", "The region in which the bucket is located.")
}

func main() {
	// Parse the command line parameters.
	flag.Parse()

	// Check whether the region is empty.
	if len(region) == 0 {
		flag.PrintDefaults()
		log.Fatalf("invalid parameters, region required")
	}

	// Load the default configurations and specify the credential provider and region.
	cfg := oss.LoadDefaultConfig().
		WithCredentialsProvider(credentials.NewEnvironmentVariableCredentialsProvider()).
		WithRegion(region)

	// Create an OSSClient instance.
	client := oss.NewClient(cfg)

	// Create a request to list buckets.
	request := &oss.ListBucketsRequest{}

	// Create a paginator.
	p := client.NewListBucketsPaginator(request)

	var i int
	log.Println("kets:")

	// Traverse each page in the paginator.
	for p.HasNext() {
		i++

		// Obtain the data of the next page.
		page, err := p.NextPage(context.TODO())
		if err != nil {
			log.Fatalf("failed to get page %v, %v", i, err)
		}

		// Display information about each bucket on the page.
		for _, b := range page.Buckets {
			log.Printf("Bucket: %v, StorageClass: %v, Location: %v\n", oss.ToString(b.Name), oss.ToString(b.StorageClass), oss.ToString(b.Location))
		}
	}

}

C#

using OSS = AlibabaCloud.OSS.V2; // Create an alias for Alibaba Cloud OSS SDK to simplify subsequent use

var region = "cn-hangzhou"; // Required. Set the region where the bucket is located. In this example, the region is China (Hangzhou), so Region is set to cn-hangzhou
var endpoint = null as string;  // Optional. Specify the domain name to access the OSS service. For China (Hangzhou), the endpoint is https://oss-cn-hangzhou.aliyuncs.com

// Load the default configuration of the OSS SDK, which automatically reads credential information (such as AccessKey) from environment variables
var cfg = OSS.Configuration.LoadDefault();
// Explicitly set to use environment variables to obtain credentials for authentication (format: OSS_ACCESS_KEY_ID, OSS_ACCESS_KEY_SECRET)
cfg.CredentialsProvider = new OSS.Credentials.EnvironmentVariableCredentialsProvider();
// Set the bucket region in the configuration
cfg.Region = region;
// If an endpoint is specified, override the default endpoint
if(endpoint != null)
{
    cfg.Endpoint = endpoint;
}

// Create an OSS client instance using the configuration information
using var client = new OSS.Client(cfg);

// Create a paginator for the ListBuckets operation to handle paginated results
// ListBucketsRequest is a request model defined by the SDK, using the default constructor here (to get all buckets)
var paginator = client.ListBucketsPaginator(new OSS.Models.ListBucketsRequest());

Console.WriteLine("Buckets:");
await foreach (var page in paginator.IterPageAsync())
{
// Iterate through each bucket on the current page
    foreach (var bucket in page.Buckets ?? [])
    {
    // Print bucket information: name, storage class, and location
    Console.WriteLine($"Bucket:{bucket.Name}, {bucket.StorageClass}, {bucket.Location}");
    }
}

Node.js

const OSS = require('ali-oss');

const client = new OSS({
  // Specify the region in which the bucket is located. For example, if the bucket is located in the China (Hangzhou) region, set the region to oss-cn-hangzhou. 
  region: 'yourregion',
  // Obtain access credentials from environment variables. Before you run the sample code, make sure that you have configured environment variables OSS_ACCESS_KEY_ID and OSS_ACCESS_KEY_SECRET. 
  accessKeyId: process.env.OSS_ACCESS_KEY_ID,
  accessKeySecret: process.env.OSS_ACCESS_KEY_SECRET,
  authorizationV4: true,
  // Specify the name of your bucket.
  bucket: 'yourBucketName',
});

async function listBuckets() {
  try {
    // List all buckets in all regions within the current Alibaba Cloud account. 
    const result = await client.listBuckets();
    console.log(result);
  } catch (err) {
    console.log(err);
  }
}

listBuckets();

Harmony

import Client, { RequestError } from '@aliyun/oss';

// Create an OSS client instance
const client = new Client({
  // Replace with the Access Key ID of the STS temporary access credential
  accessKeyId: 'yourAccessKeyId',
  // Replace with the Access Key Secret of the STS temporary access credential
  accessKeySecret: 'yourAccessKeySecret',
  // Replace with the Security Token of the STS temporary access credential
  securityToken: 'yourSecurityToken',
});

// List all buckets
const listBuckets = async () => {
  try {
    // Call the listBuckets method to list all buckets
    const res = await client.listBuckets({});

    // Print the returned result
    console.log(JSON.stringify(res));
  } catch (err) {
    // Catch and handle request errors
    if (err instanceof RequestError) {
      console.log('Error code: ', err.code); // Error code
      console.log('Error message: ', err.message); // Error description
      console.log('Request ID: ', err.requestId); // Unique identifier of the request
      console.log('HTTP status code: ', err.status); // HTTP response status code
      console.log('Error category: ', err.ec); // Error category
    } else {
      console.log('Unknown error: ', err); // Non-RequestError type error
    }
  }
};

// Call the function to list all buckets
listBuckets();

Ruby

require 'aliyun/oss'

client = Aliyun::OSS::Client.new(
  # In this example, the endpoint of the China (Hangzhou) region is used. Specify your actual endpoint. 
  endpoint: 'https://oss-cn-hangzhou.aliyuncs.com',
  # Obtain access credentials from environment variables. Before you run the sample code, make sure that the OSS_ACCESS_KEY_ID and OSS_ACCESS_KEY_SECRET environment variables are configured. 
  access_key_id: ENV['OSS_ACCESS_KEY_ID'],
  access_key_secret: ENV['OSS_ACCESS_KEY_SECRET']
)
# List all buckets in all regions within the current account. 
buckets = client.list_buckets
buckets.each { |b| puts b.name }

Android

For the complete sample code, see List buckets.

// List all buckets that belong to the current Alibaba Cloud account in all regions. 
ListBucketsRequest request = new ListBucketsRequest();
ossClient.asyncListBuckets(request, new OSSCompletedCallback<ListBucketsRequest, ListBucketsResult>() {
    @Override
    public void onSuccess(ListBucketsRequest request, ListBucketsResult result) {
        List<OSSBucketSummary> buckets = result.getBuckets();
        for (int i = 0; i < buckets.size(); i++) {
            Log.i("info", "name: " + buckets.get(i).name + " "
                    + "location: " + buckets.get(i).location);
        }
    }

    @Override
    public void onFailure(ListBucketsRequest request, ClientException clientException, ServiceException serviceException) {
        // Handle request exceptions. 
        if (clientException != null) {
            // Handle client-side exceptions, such as network errors. 
            clientException.printStackTrace();
        }
        if (serviceException != null) {
            // Handle server-side exceptions. 
            Log.e("ErrorCode", serviceException.getErrorCode());
            Log.e("RequestId", serviceException.getRequestId());
            Log.e("HostId", serviceException.getHostId());
            Log.e("RawMessage", serviceException.getRawMessage());
        }
    }
});

C++

#include <alibabacloud/oss/OssClient.h>
using namespace AlibabaCloud::OSS;

int main(void)
{
    /* Initialize information about the account that is used to access OSS. */
    
    /* Specify the endpoint of the region in which the bucket is located. For example, if the bucket is located in the China (Hangzhou) region, set the endpoint to https://oss-cn-hangzhou.aliyuncs.com. */
    std::string Endpoint = "yourEndpoint";
    
    /* Specify the region in which the bucket is located. For example, if the bucket is located in the China (Hangzhou) region, set the region to cn-hangzhou. */
    std::string Region = "yourRegion";

    /* Initialize resources, such as network resources. */
    InitializeSdk();

    ClientConfiguration conf;
    conf.signatureVersion = SignatureVersionType::V4;
    /* Obtain access credentials from environment variables. Before you run the sample code, make sure that the OSS_ACCESS_KEY_ID and OSS_ACCESS_KEY_SECRET environment variables are configured. */
    auto credentialsProvider = std::make_shared<EnvironmentVariableCredentialsProvider>();
    OssClient client(Endpoint, credentialsProvider, conf);
    client.SetRegion(Region);

    /* List all buckets that belong to the current Alibaba Cloud account. */
    ListBucketsRequest request;
    auto outcome = client.ListBuckets(request);

    if (outcome.isSuccess()) {
        /* Display information about the buckets. */
        std::cout <<" success, and bucket count is" << outcome.result().Buckets().size() << std::endl;
        std::cout << "Bucket name is" << std::endl;
        for (auto result : outcome.result().Buckets())
        {
            std::cout << result.Name() << std::endl;
        }
    }
    else {
        /* Handle exceptions. */
        std::cout << "ListBuckets fail" <<
        ",code:" << outcome.error().Code() <<
        ",message:" << outcome.error().Message() <<
        ",requestId:" << outcome.error().RequestId() << std::endl;
        return -1;
    }

    /* Release resources, such as network resources. */
    ShutdownSdk();
    return 0;
}

iOS

OSSGetServiceRequest * getService = [OSSGetServiceRequest new];
// List all buckets in all regions within the current Alibaba Cloud account.     
OSSTask * getServiceTask = [client getService:getService];
[getServiceTask continueWithBlock:^id(OSSTask *task) {
    if (!task.error) {
        OSSGetServiceResult * result = task.result;
        NSLog(@"buckets: %@", result.buckets);
        NSLog(@"owner: %@, %@", result.ownerId, result.ownerDispName);
        [result.buckets enumerateObjectsUsingBlock:^(id  _Nonnull obj, NSUInteger idx, BOOL * _Nonnull stop) {
            NSDictionary * bucketInfo = obj;
            NSLog(@"BucketName: %@", [bucketInfo objectForKey:@"Name"]);
            NSLog(@"CreationDate: %@", [bucketInfo objectForKey:@"CreationDate"]);
            NSLog(@"Location: %@", [bucketInfo objectForKey:@"Location"]);
        }];
    } else {
        NSLog(@"get service failed, error: %@", task.error);
    }
    return nil;
}];
// Implement synchronous blocking to wait for the task to complete. 
// [getServiceTask waitUntilFinished];

C

#include "oss_api.h"
#include "aos_http_io.h"
/* Specify the endpoint of the region in which the bucket is located. For example, if the bucket is located in the China (Hangzhou) region, set the endpoint to https://oss-cn-hangzhou.aliyuncs.com. */
const char *endpoint = "yourEndpoint";
/* Specify the region in which the bucket is located. For example, if the bucket is located 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 a char* string to initialize data of the aos_string_t type. */
    aos_str_set(&options->config->endpoint, endpoint);
    /* Obtain access credentials from environment variables. Before you run the sample code, make sure that the OSS_ACCESS_KEY_ID and OSS_ACCESS_KEY_SECRET environment variables are configured. */
    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"));
    // Specify two additional parameters.
    aos_str_set(&options->config->region, region);
    options->config->signature_version = 4;
    /* Specify whether to use CNAME to access OSS. The value 0 indicates that CNAME is not used. */
    options->config->is_cname = 0;
    /* Configure 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 in main() to initialize global resources, such as network resources and memory resources. */
    if (aos_http_io_initialize(NULL, 0) != AOSE_OK) {
        exit(1);
    }
    /* Create a memory pool to manage memory. aos_pool_t is equivalent to apr_pool_t. The code used to create a memory pool is included in the APR library. */
    aos_pool_t *pool;
    /* Create a memory pool. The value of the second parameter is NULL. This value indicates that the pool does not inherit other memory pools. */
    aos_pool_create(&pool, NULL);
    /* Create and initialize options. This parameter includes global configuration information, such as endpoint, access_key_id, access_key_secret, is_cname, and curl. */
    oss_request_options_t *oss_client_options;
    /* Allocate the memory resources in the memory pool to the options. */
    oss_client_options = oss_request_options_create(pool);
    /* Initialize oss_client_options. */
    init_options(oss_client_options);
    /* Initialize the parameters. */
    aos_table_t *resp_headers = NULL; 
    aos_status_t *resp_status = NULL; 
    oss_list_buckets_params_t *params = NULL;
    oss_list_bucket_content_t *content = NULL;
    int size = 0;
    params = oss_create_list_buckets_params(pool);
    /* List buckets. */
    resp_status = oss_list_bucket(oss_client_options, params, &resp_headers);
    if (aos_status_is_ok(resp_status)) {
        printf("list buckets succeeded\n");
    } else {
        printf("list buckets failed\n");
    }
    /* Display the buckets. */
    aos_list_for_each_entry(oss_list_bucket_content_t, content, &params->bucket_list, node) {
        printf("BucketName: %s\n", content->name.data);
        ++size;
    }
    /* Release the memory pool. This operation releases the memory resources allocated for the request. */
    aos_pool_destroy(pool);
    /* Release the allocated global resources. */
    aos_http_io_deinitialize();
    return 0;
}

Java

For the complete sample code, see List buckets (Java SDK).

// 1. Create a request object.
ListBucketsRequest listBucketsRequest = new ListBucketsRequest();

// 2. Set the prefix parameter.
listBucketsRequest.setPrefix("example");

// 3. Execute the request.
BucketList bucketList = ossClient.listBuckets(listBucketsRequest);

Python

For the complete sample code, see List buckets (Python SDK V2).

# Pass a request object with the prefix parameter to the iter_page method of the paginator.
for page in paginator.iter_page(oss.ListBucketsRequest(
    prefix='example'
)):
    # ... Loop processing ...

Go

For the complete sample code, see List buckets.

// 1. Create a request object and set the Prefix field.
request := &oss.ListBucketsRequest{
    Prefix: oss.Ptr("example"), 
}

// 2. Use this request object to create a paginator.
p := client.NewListBucketsPaginator(request)

Node.js

For the complete sample code, see List buckets (Node.js SDK).

// Specify the prefix in the parameter object of the listBuckets method.
const result = await client.listBuckets({
  prefix: 'example' 
});

Harmony

For the complete sample code, see List buckets (Harmony SDK).

// Key code: Pass an object containing the prefix when calling listBuckets.
const res = await client.listBuckets({
  prefix: 'bucketNamePrefix'
});

Ruby

For the complete sample code, see List buckets.

# Key code: Call list_buckets with :prefix as a parameter.
buckets = client.list_buckets(:prefix => 'example')

Java

For the complete sample code, see List buckets (Java SDK).

// 1. Set marker to "examplebucket" to list buckets that come after "examplebucket".
String nextMarker = "examplebucket"; 
BucketList bucketListing;

do {
    // 2. Send a request with the current marker.
    bucketListing = ossClient.listBuckets(new ListBucketsRequest()
            .withMarker(nextMarker)
            .withMaxKeys(200));

    // 3. Update the marker to get the next page.
    nextMarker = bucketListing.getNextMarker(); 
} while (bucketListing.isTruncated());

Python

For the complete sample code, see List buckets (Python SDK V2).

# Set marker to "example-bucket" to list buckets that come after "example-bucket".
for page in paginator.iter_page(oss.ListBucketsRequest(
    marker="example-bucket"
)):
    # ... Iterate through page ...

Go

For the complete sample code, see List buckets.

// Set marker to "example-bucket" to list buckets that come after "example-bucket".
request := &oss.ListBucketsRequest{
    Marker: oss.Ptr("example-bucket"), 
}

// Use this request to create a paginator.
p := client.NewListBucketsPaginator(request)

Harmony

For the complete sample code, see List buckets (Harmony SDK).

// Set the initial value of marker to "examplebucket" to specify the starting point for the listing.
let marker: string | undefined = "examplebucket"; 
let isTruncated = true;

while (isTruncated) {
  // Use the current marker in the request.
  const res = await client.listBuckets({
    marker 
  });
  // ...
  // Update the marker for the next loop.
  marker = res.data.nextMarker; 
  isTruncated = res.data.isTruncated;
}

Node.js

For the complete sample code, see List buckets (Node.js SDK).

// Set marker to 'examplebucket' to list buckets that come after 'examplebucket'.
const result = await client.listBuckets({
  marker: 'examplebucket' 
});

Android

For the complete sample code, see List buckets.

ListBucketsRequest request = new ListBucketsRequest();
// Set marker to "examplebucket" to list buckets that come after "examplebucket".
request.setMarker("examplebucket");

ossClient.asyncListBuckets(request, ...);

iOS

For the complete sample code, see List buckets.

OSSGetServiceRequest * getService = [OSSGetServiceRequest new];

// Set marker to "examplebucket" to list buckets that come after "examplebucket".
getService.marker = @"examplebucket";

// Use this request object to start an asynchronous task.
OSSTask * getServiceTask = [client getService:getService];

Java

For the complete sample code, see List buckets (Java SDK).

ListBucketsRequest listBucketsRequest = new ListBucketsRequest();

// Key code: Set the ID of the resource group to filter by.
listBucketsRequest.setResourceGroupId("rg-aek27tc****");

// Pass the configured request object to the listBuckets method.
BucketList bucketList = ossClient.listBuckets(listBucketsRequest);

Python

For the complete sample code, see List buckets (Python SDK V2).

# Key code: Construct a request in the iter_page method and specify resource_group_id.
for page in paginator.iter_page(oss.ListBucketsRequest(
    resource_group_id="rg-aek27tc********"
)):
    # ... Iterate through page ...

Go

For the complete sample code, see List buckets.

// Key code: Create a request and set the ResourceGroupId field.
request := &oss.ListBucketsRequest{
    ResourceGroupId: oss.Ptr("rg-aek27tc********"), 
}

// Use this request to create a paginator.
p := client.NewListBucketsPaginator(request)

PHP

For the complete sample code, see List buckets.

// Key code: Construct a request in the iterPage method and specify resourceGroupId.
$iter = $paginator->iterPage(new Oss\Models\ListBucketsRequest(
    resourceGroupId: "rg-aekzfalvmw2sxby"
));

Java

For the complete sample code, see List buckets (Java SDK).

ListBucketsRequest listBucketsRequest = new ListBucketsRequest();

// Key code: Set the maxKeys parameter to 500 to limit the number of buckets returned to a maximum of 500.
listBucketsRequest.setMaxKeys(500);

// Pass the configured request object to the method.
BucketList bucketList = ossClient.listBuckets(listBucketsRequest);

Python

For the complete sample code, see List buckets (Python SDK V2).

# Key code: Pass the max_keys parameter with a value of 10 when creating ListBucketsRequest.
# This causes the paginator to retrieve a maximum of 10 buckets per request.
for page in paginator.iter_page(oss.ListBucketsRequest(
    max_keys=10
)):
    # ... Iterate through page ...

Go

For the complete sample code, see List buckets.

// Key code: Set the MaxKeys field to 5 when creating ListBucketsRequest.
// The paginator will use this setting to retrieve a maximum of 5 buckets per request.
request := &oss.ListBucketsRequest{
    MaxKeys: 5,
}

p := client.NewListBucketsPaginator(request)

Node.js

For the complete sample code, see List buckets (Node.js SDK).

// Key code: Pass an object containing the 'max-keys' property when calling listBuckets.
// 'max-keys' is set to 500 to limit the number of buckets returned to a maximum of 500.
const result = await client.listBuckets({
  'max-keys': 500
});

Android

For the complete sample code, see List buckets.

ListBucketsRequest request = new ListBucketsRequest();

// Key code: Set the maxKeys parameter to 500 to limit the number of buckets returned in this asynchronous request to a maximum of 500.
request.setMaxKeys(500);

ossClient.asyncListBuckets(request, ...);

iOS

For the complete sample code, see List buckets.

OSSGetServiceRequest * getService = [OSSGetServiceRequest new];

// Key code: Set the maxKeys property of the getService request object to 500.
getService.maxKeys = 500;

OSSTask * getServiceTask = [client getService:getService];