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Help Center/ Elastic Load Balance/ API Reference/ APIs (V3)/ Load Balancer/ Batch Creating Load Balancers

Batch Creating Load Balancers

Updated on 2025-02-25 GMT+08:00

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Function

This API is used to create dedicated or shared load balancers in batches.

When you create load balancers, note the following:

Specify vip_subnet_cidr_id if you want to bind private IPv4 addresses to the load balancers.
Specify publicip and either vpc_id or vip_subnet_cidr_id if you want to bind new IPv4 EIPs to the load balancers.
Specify publicip_ids and either vpc_id or vip_subnet_cidr_id if you want to bind existing IPv4 EIPs to the load balancers.
Specify ipv6_vip_virsubnet_id if you want to bind private IPv6 addresses to the load balancers.
Specify both ipv6_vip_virsubnet_id and ipv6_bandwidth if you want to bind public IPv6 addresses to the load balancers.
Specify l4_flavor_id if you want to create network load balancers and l7_flavor_id to create application load balancers. Specify both l4_flavor_id and l7_flavor_id if you want to create load balancers that can work at both Layer 4 and Layer 7.
Do not specify publicip_ids, vip_address, or ipv6_vip_address when creating load balancers in batches. You cannot bind existing private IPv4 addresses, IPv6 addresses, or public IP addresses to the load balancers.
If prepaid_options is not specified, pay-per-use load balancers will be created, which are billed by fixed specifications or elastic specifications you have selected for l4_flavor_id and l7_flavor_id when creating the load balancers.
This is an asynchronous API, returning load balancer IDs and job IDs in its response body. You can use the job ID to query the load balancer creation progress.
The rules for specifying parameters in the request body are different when you create dedicated and shared load balancers in batches. For details, see the description of each parameter in the request body.

Constraints

There are some constraints when you create load balancers:

vpc_id, vip_subnet_cidr_id, and ipv6_vip_virsubnet_id cannot be left blank at the same time.
If the value of number is greater than 1, do not specify publicip_ids, vip_address, and ipv6_vip_address.
ip_target_enable specifies whether to enable IP as a Backend. If you set it to true, you can associate servers in a VPC connected through a VPC peering connection, in a VPC connected through a cloud connection, or in an on-premises data center at the other end of a Direct Connect or VPN connection, by using server IP addresses. If you set it to false, the load balancer and the backend servers must be in the same VPC.
admin_state_up must be true.
provider must be set to vlb.
elb_virsubnet_ids indicates the subnets that support IPv4/IPv6 dual stack or only IPv4. If only IPv4 subnets are supported, ipv6_vip_virsubnet_id must be left blank.
If you bind an EIP to the load balancer during creation, you cannot unbind it from the load balancer by calling the API after the load balancer is created. Instead, you can unbind the EIP only on the ELB console. Locate the load balancer in the load balancer list and click More > Unbind EIP in the Operation column.
publicip_ids and publicip cannot be specified at the same time. Set either publicip_ids to bind an existing EIP to the load balancer, or publicip to bind a new EIP to the load balancer, or neither of them.
If you want to add the load balancer to a shared bandwidth, you must specify the ID of the shared bandwidth. If you want the load balancer to use a new dedicated bandwidth, charge_mode, share_type, and size are required.
You cannot bind an existing and unoccupied private IPv4 address, IPv6 address, or public IPv6 address to load balancers.

Calling Method

For details, see Calling APIs.

URI

POST /v3/{project_id}/elb/loadbalancers/batch-create

**Table 1** Path Parameters
Parameter	Mandatory	Type	Description
project_id	Yes	String	Specifies the ID of the project where the load balancer is used.

Request Parameters

**Table 2** Request header parameters
Parameter	Mandatory	Type	Description
X-Auth-Token	No	String	Specifies the token used for IAM authentication.

**Table 3** Request body parameters
Parameter	Mandatory	Type	Description
loadbalancer	Yes	BatchCreateLoadBalancerOption object	Specifies the load balancer.

**Table 4** BatchCreateLoadBalancerOption
Parameter	Mandatory	Type	Description
id	No	String	Specifies the ID of the load balancer. This parameter is unsupported. Please do not use it.
ids	No	Array of strings	Specifies the IDs of the load balancers created in batches. This parameter is unsupported. Please do not use it.
project_id	No	String	Specifies the ID of the project where the load balancer is used.
number	No	Integer	Specifies the number of load balancers to be created.
name	No	String	Specifies the load balancer names. Note: If the number of load balancers to be created is 1, the load balancer name is the value defined by name. If the number of load balancers to be created is greater than 1, each name is suffixed with a 4-digit number. For example, if you create three load balancers and set name to elb-test, the names of these load balancers are elb-test-0001, elb-test-0002, and elb-test-0003.
description	No	String	Specifies the descriptions of these load balancers.
vip_address	No	String	Specifies the virtual IPv4 address bound to the load balancer. The IP address must be from the IPv4 subnet where the load balancer resides and should not be used by other services. Note: vip_subnet_cidr_id is also required if vip_address is specified. If only vip_subnet_cidr_id is specified, the system will automatically assign a private IPv4 address to the load balancer. If neither vip_address nor vip_subnet_cidr_id is specified, no private IPv4 address will be assigned, and the value of vip_address will be null. If the value of number is greater than 1, this parameter cannot be specified and error code 400 will be returned.
vip_subnet_cidr_id	No	String	Specifies the ID of the IPv4 subnet where the load balancer works. This parameter is mandatory if you need to create a load balancer with a virtual IPv4 address. You can query parameter neutron_subnet_id in the response by calling the API (GET https://{VPC_Endpoint}/v1/{project_id}/subnets) Note: vpc_id, vip_subnet_cidr_id, and ipv6_vip_virsubnet_id cannot be left blank at the same time. The subnet specified by vip_subnet_cidr_id and the subnet specified by ipv6_vip_virsubnet_id must be in the VPC specified by vpc_id. The subnet specified by vip_subnet_cidr_id must be in the VPC specified by vpc_id if both vpc_id and vip_subnet_cidr_id are specified.
ipv6_vip_virsubnet_id	No	String	Specifies the ID of the IPv6 subnet where the load balancer works. You can query parameter neutron_network_id in the response by calling the API (GET https://{VPC_Endpoint}/v1/{project_id}/subnets). Note: vpc_id, vip_subnet_cidr_id, and ipv6_vip_virsubnet_id cannot be left blank at the same time. The subnet specified by vip_subnet_cidr_id and the subnet specified by ipv6_vip_virsubnet_id must be in the VPC specified by vpc_id. IPv6 must have been enabled for the subnet where the load balancer resides. This parameter cannot be specified when shared load balancers are created in batches.
provider	No	String	Specifies the provider of the load balancer. The value is fixed to vlb. This parameter cannot be specified when shared load balancers are created in batches.
l4_flavor_id	No	String	Specifies the flavor ID of the network load balancer. Note: You can query parameter id in the response by calling the API (GET https://{ELB_Endpoint}/v3/{project_id}/elb/flavors?type=L4). If neither l4_flavor_id nor l7_flavor_id is specified, the default flavor is used. The default flavor varies by site. If the flavor type is L4, the load balancer uses the fixed flavor and will be billed by the specification you select. If the flavor type is L4_elastic_max, the load balancer uses the elastic flavor and will be billed by how many LCUs you use. This parameter cannot be specified when shared load balancers are created in batches.
l7_flavor_id	No	String	Specifies the flavor ID of the application load balancer. Note: You can query parameter id in the response by calling the API (GET https://{ELB_Endpoint}/v3/{project_id}/elb/flavors?type=L7). If neither l4_flavor_id nor l7_flavor_id is specified, the default flavor is used. The default flavor varies by site. If the flavor type is L7, the load balancer uses the fixed flavor and will be billed by the specification you select. If the flavor type is L7_elastic_max, the load balancer uses the elastic flavor and will be billed by how many LCUs you use. This parameter cannot be specified when shared load balancers are created in batches.
guaranteed	No	Boolean	Specifies whether to create dedicated or shared load balancers. Value options: true: Create dedicated load balancers. false: Create shared load balancers. Default value: true
vpc_id	No	String	Specifies the ID of the VPC where the load balancer resides. You can query parameter id in the response by calling the API (GET https://{VPC_Endpoint}/v1/{project_id}/vpcs). Note: vpc_id, vip_subnet_cidr_id, and ipv6_vip_virsubnet_id cannot be left blank at the same time. The subnet specified by vip_subnet_cidr_id and the subnet specified by ipv6_vip_virsubnet_id must be in the VPC specified by vpc_id. This parameter cannot be specified when shared load balancers are created in batches.
availability_zone_list	Yes	Array of strings	Specifies the list of AZs where the load balancer can be created. You can query the AZs by calling the API (GET https://{ELB_Endpoint}/v3/{project_id}/elb/availability-zones). Select one or more AZs in the same set. Note: This parameter cannot be specified when shared load balancers are created in batches.
enterprise_project_id	No	String	Specifies the ID of the enterprise project where the load balancer is used. The value cannot be "", "0", or the ID of an enterprise project that does not exist. If this parameter is not passed during resource creation, the resource belongs to the default enterprise project, and 0 will be returned.
tags	No	Array of Tag objects	Specifies the tags added to the load balancer. Example: "tags":[{"key":"my_tag","value":"my_tag_value"}]
admin_state_up	No	Boolean	Specifies whether the load balancer is enabled. Value options: true: indicates the load balancer is enabled. false: indicates the load balancer is disabled. Default value: true
ipv6_bandwidth	No	BandwidthRef object	This parameter cannot be specified when shared load balancers are created in batches.
bandwidth	No	BandwidthRef object	This parameter cannot be specified when dedicated load balancers are created in batches.
publicip_ids	No	Array of strings	Specifies the ID of the EIP bound to the load balancer. Only the first EIP in the array will be bound. If the value of number is greater than 1, this parameter cannot be specified and error code 400 will be returned.
publicip	No	CreateLoadBalancerPublicIpOption object	Specifies the new EIP that will be bound to the load balancer.
elb_virsubnet_ids	No	Array of strings	Specifies the IDs of subnets on the downstream plane. You can query parameter neutron_network_id in the response by calling the API (GET https://{VPC_Endpoint}/v1/{project_id}/subnets). If this parameter is not specified, the subnet IDs will be used based on the following rules: If IPv6 is enabled for a load balancer, the subnet IDs specified in ipv6_vip_virsubnet_id will be used. If IPv6 is not enabled for a load balancer, the subnet IDs specified in vip_subnet_cidr_id will be used. If a load balancer only works on the public network, the ID of any subnet in the VPC where the load balancer is deployed will be used. The subnets that have the most available IP addresses are preferred. This parameter cannot be specified when shared load balancers are created in batches. If there is more than one subnet, the first subnet in the list will be used to assign IP addresses. The subnets must be in the VPC where the load balancer works.
ip_target_enable	No	Boolean	Specifies whether to add backend servers that are not in the load balancer's VPC. If you enable this function, you can add servers in a peer VPC connected through a VPC peering connection, servers in other public clouds, or servers in an on-premises data center at the other end of a Direct Connect or VPN connection, by using their IP addresses. Value options: true: Enable ip_target_enable. false: Disable ip_target_enable. Note: The value can only be updated to true. If you need to connect your server to a shared VPC, ensure the VPC principal has created a VPC peering connections between the two VPCs. This function is supported only by dedicated load balancers.
deletion_protection_enable	No	Boolean	Specifies whether to enable deletion protection. This parameter cannot be specified when shared load balancers are created in batches. Value options: true: Enable deletion protection. false (default): Disable deletion protection. NOTE: Disable deletion protection for all your resources before deleting your account.
autoscaling	No	CreateLoadbalancerAutoscalingOption object	Specifies information about elastic scaling. If elastic scaling is enabled, the load balancer specifications can be automatically adjusted based on incoming traffic. Note: This parameter is only available for users on the whitelist. If elastic scaling is enabled, l4_flavor_id indicates the ID of the maximum elastic flavor at Layer 4. l7_flavor_id indicates the ID of the maximum elastic flavor at Layer 7. This parameter has been deprecated, but is retained for compatibility purposes. Using this parameter is not recommended. If this parameter is specified, the load balancer with minimum specifications will be created and you will be billed for the minimum specifications.
waf_failure_action	No	String	Specifies traffic distributing policies when the WAF is faulty. discard: Traffic will not be distributed. forward: Traffic will be distributed to the default backend servers. Note: This parameter takes effect only when WAF is enabled for the load balancer.
protection_status	No	String	Specifies the protection status. Value options: nonProtection (default): The load balancer is not protected. consoleProtection: Modification Protection is enabled on the console.
protection_reason	No	String	Specifies why the modification protection is enabled. Note: This parameter is valid only when protection_status is set to consoleProtection. The value can contain a maximum of 255 Unicode characters, excluding angle brackets (<>).
ipv6_vip_address	No	String	Specifies the IPv6 address bound to the load balancer. If the value of number is greater than 1, this parameter cannot be specified and error code 400 will be returned. This parameter cannot be specified when shared load balancers are created in batches.

**Table 5** Tag
Parameter	Mandatory	Type	Description
key	No	String	Specifies the tag key.
value	No	String	Specifies the tag value.

**Table 6** BandwidthRef
Parameter	Mandatory	Type	Description
id	Yes	String	Specifies the shared bandwidth ID.

**Table 7** CreateLoadBalancerPublicIpOption
Parameter	Mandatory	Type	Description
ip_version	No	Integer	Specifies the IP address version. The value can be 4 (IPv4) or 6 (IPv6). The default value is 4.
network_type	Yes	String	Specifies the EIP type. The default value is 5_bgp. For more information, see the API for assigning an EIP in the Virtual Private Cloud API Reference.
billing_info	No	String	Provides billing information about the EIP. If the value is left blank, the EIP is billed in pay-per-use mode. This parameter is unsupported. Please do not use it.
description	No	String	Provides supplementary information about the EIP.
bandwidth	Yes	CreateLoadBalancerBandwidthOption object	Provides supplementary information about the bandwidth.

**Table 8** CreateLoadBalancerBandwidthOption
Parameter	Mandatory	Type	Description
name	No	String	Specifies the bandwidth name. The value can contain 1 to 64 characters, including letters, digits, underscores (_), hyphens (-), and periods. Note: This parameter is mandatory if share_type is set to PER. This parameter will be ignored if the bandwidth reference has a specific ID.
size	No	Integer	Specifies the bandwidth range. The default bandwidth range is 1 Mbit/s to 2,000 Mbit/s, which may vary by region and can be viewed on the management console. Note: This parameter is mandatory if id is set to null. The minimum increment for bandwidth adjustment varies by bandwidth range. The following are the details: The minimum increment is 1 Mbit/s if the bandwidth range is from 0 Mbit/s to 300 Mbit/s. The minimum increment is 50 Mbit/s if the bandwidth range is from 301 Mbit/s to 1,000 Mbit/s. The minimum increment is 500 Mbit/s if the bandwidth is greater than 1,000 Mbit/s.
charge_mode	No	String	Specifies how the bandwidth used by the EIP is billed. traffic: The bandwidth will be billed by traffic. bandwidth: The bandwidth will be billed by fixed bandwidth. This parameter is mandatory if id is set to null.
share_type	No	String	Specifies the bandwidth type. Value options: PER: indicates dedicated bandwidths. WHOLE: indicates shared bandwidths. Note: This parameter is mandatory when id is set to null. It will be ignored if the value of id is not null. The bandwidth ID must be specified if the bandwidth type is set to WHOLE. The bandwidth type cannot be WHOLE for IPv6 EIPs.
billing_info	No	String	Specifies bandwidth billing information. Note: This parameter is unsupported. Please do not use it.
id	No	String	Specifies the ID of the shared bandwidth to which the IP address bound to the load balancer is added. Note: The value is the bandwidth ID when share_type is set to WHOLE.

**Table 9** CreateLoadbalancerAutoscalingOption
Parameter	Mandatory	Type	Description
enable	Yes	Boolean	Specifies whether to enable elastic scaling for the load balancer. The value can be true (elastic scaling enabled) or false (elastic scaling disabled).
min_l7_flavor_id	No	String	Specifies the ID of the minimum elastic flavor at Layer 7. This parameter cannot be left blank if there are HTTP or HTTPS listeners.

Response Parameters

Status code: 202

**Table 10** Response body parameters
Parameter	Type	Description
loadbalancer_ids	Array of strings	Specifies the IDs of the load balancers created in batches.
job_id	String	Specifies task ID of the batch creation.
request_id	String	Specifies the request ID. Note: The value is automatically generated.

Example Requests

Example 1: Creating three pay-per-use, dedicated load balancers and binding private IPv4 addresses to them

POST https://{ELB_Endpoint}/v3/060576798a80d5762fafc01a9b5eedc7/elb/loadbalancers/batch-create

{
  "loadbalancer" : {
    "name" : "loadbalancer",
    "description" : "simple batch create lb",
    "vip_subnet_cidr_id" : "1992ec06-f364-4ae3-b936-6a8cc24633b7",
    "admin_state_up" : true,
    "availability_zone_list" : [ "AZ1" ],
    "number" : 3
  }
}

Example 1: Creating three shared load balancers and binding private IPv4 addresses to them

POST https://{ELB_Endpoint}/v3/060576798a80d5762fafc01a9b5eedc7/elb/loadbalancers/batch-create

{
  "loadbalancer" : {
    "name" : "loadbalancer",
    "description" : "simple batch create lb",
    "availability_zone_list" : [ "AZ1" ],
    "vip_subnet_cidr_id" : "1992ec06-f364-4ae3-b936-6a8cc24633b7",
    "admin_state_up" : true,
    "guaranteed" : false,
    "number" : 3
  }
}

Example Responses

Status code: 202

Normal response

{
  "job_id" : "060576798a80d5762fafc01a9b5eedc7",
  "loadbalancer_ids" : [ "de7946ba-3b77-4119-8338-acc25eb05611", "ba27f70b-b52f-4a77-9220-fd15726e50bd" ],
  "request_id" : "bf29597181cb81b30d19f1a0115a157d"
}

SDK Sample Code

The SDK sample code is as follows.

Java
Python
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Example 1: Creating three pay-per-use, dedicated load balancers and binding private IPv4 addresses to them

        
         
           
           package com.huaweicloud.sdk.test;

import com.huaweicloud.sdk.core.auth.ICredential;
import com.huaweicloud.sdk.core.auth.BasicCredentials;
import com.huaweicloud.sdk.core.exception.ConnectionException;
import com.huaweicloud.sdk.core.exception.RequestTimeoutException;
import com.huaweicloud.sdk.core.exception.ServiceResponseException;
import com.huaweicloud.sdk.elb.v3.region.ElbRegion;
import com.huaweicloud.sdk.elb.v3.*;
import com.huaweicloud.sdk.elb.v3.model.*;

import java.util.List;
import java.util.ArrayList;

public class BatchCreateLoadBalancersSolution {

    public static void main(String[] args) {
        // The AK and SK used for authentication are hard-coded or stored in plaintext, which has great security risks. It is recommended that the AK and SK be stored in ciphertext in configuration files or environment variables and decrypted during use to ensure security.
        // In this example, AK and SK are stored in environment variables for authentication. Before running this example, set environment variables CLOUD_SDK_AK and CLOUD_SDK_SK in the local environment
        String ak = System.getenv("CLOUD_SDK_AK");
        String sk = System.getenv("CLOUD_SDK_SK");
        String projectId = "{project_id}";

        ICredential auth = new BasicCredentials()
                .withProjectId(projectId)
                .withAk(ak)
                .withSk(sk);

        ElbClient client = ElbClient.newBuilder()
                .withCredential(auth)
                .withRegion(ElbRegion.valueOf("<YOUR REGION>"))
                .build();
        BatchCreateLoadBalancersRequest request = new BatchCreateLoadBalancersRequest();
        BatchCreateLoadBalancersRequestBody body = new BatchCreateLoadBalancersRequestBody();
        List<String> listLoadbalancerAvailabilityZoneList = new ArrayList<>();
        listLoadbalancerAvailabilityZoneList.add("AZ1");
        BatchCreateLoadBalancerOption loadbalancerbody = new BatchCreateLoadBalancerOption();
        loadbalancerbody.withNumber(3)
            .withName("loadbalancer")
            .withDescription("simple batch create lb")
            .withVipSubnetCidrId("1992ec06-f364-4ae3-b936-6a8cc24633b7")
            .withAvailabilityZoneList(listLoadbalancerAvailabilityZoneList)
            .withAdminStateUp(true);
        body.withLoadbalancer(loadbalancerbody);
        request.withBody(body);
        try {
            BatchCreateLoadBalancersResponse response = client.batchCreateLoadBalancers(request);
            System.out.println(response.toString());
        } catch (ConnectionException e) {
            e.printStackTrace();
        } catch (RequestTimeoutException e) {
            e.printStackTrace();
        } catch (ServiceResponseException e) {
            e.printStackTrace();
            System.out.println(e.getHttpStatusCode());
            System.out.println(e.getRequestId());
            System.out.println(e.getErrorCode());
            System.out.println(e.getErrorMsg());
        }
    }
}

          

        
       

Example 1: Creating three shared load balancers and binding private IPv4 addresses to them

        
         
           
           package com.huaweicloud.sdk.test;

import com.huaweicloud.sdk.core.auth.ICredential;
import com.huaweicloud.sdk.core.auth.BasicCredentials;
import com.huaweicloud.sdk.core.exception.ConnectionException;
import com.huaweicloud.sdk.core.exception.RequestTimeoutException;
import com.huaweicloud.sdk.core.exception.ServiceResponseException;
import com.huaweicloud.sdk.elb.v3.region.ElbRegion;
import com.huaweicloud.sdk.elb.v3.*;
import com.huaweicloud.sdk.elb.v3.model.*;

import java.util.List;
import java.util.ArrayList;

public class BatchCreateLoadBalancersSolution {

    public static void main(String[] args) {
        // The AK and SK used for authentication are hard-coded or stored in plaintext, which has great security risks. It is recommended that the AK and SK be stored in ciphertext in configuration files or environment variables and decrypted during use to ensure security.
        // In this example, AK and SK are stored in environment variables for authentication. Before running this example, set environment variables CLOUD_SDK_AK and CLOUD_SDK_SK in the local environment
        String ak = System.getenv("CLOUD_SDK_AK");
        String sk = System.getenv("CLOUD_SDK_SK");
        String projectId = "{project_id}";

        ICredential auth = new BasicCredentials()
                .withProjectId(projectId)
                .withAk(ak)
                .withSk(sk);

        ElbClient client = ElbClient.newBuilder()
                .withCredential(auth)
                .withRegion(ElbRegion.valueOf("<YOUR REGION>"))
                .build();
        BatchCreateLoadBalancersRequest request = new BatchCreateLoadBalancersRequest();
        BatchCreateLoadBalancersRequestBody body = new BatchCreateLoadBalancersRequestBody();
        List<String> listLoadbalancerAvailabilityZoneList = new ArrayList<>();
        listLoadbalancerAvailabilityZoneList.add("AZ1");
        BatchCreateLoadBalancerOption loadbalancerbody = new BatchCreateLoadBalancerOption();
        loadbalancerbody.withNumber(3)
            .withName("loadbalancer")
            .withDescription("simple batch create lb")
            .withVipSubnetCidrId("1992ec06-f364-4ae3-b936-6a8cc24633b7")
            .withGuaranteed(false)
            .withAvailabilityZoneList(listLoadbalancerAvailabilityZoneList)
            .withAdminStateUp(true);
        body.withLoadbalancer(loadbalancerbody);
        request.withBody(body);
        try {
            BatchCreateLoadBalancersResponse response = client.batchCreateLoadBalancers(request);
            System.out.println(response.toString());
        } catch (ConnectionException e) {
            e.printStackTrace();
        } catch (RequestTimeoutException e) {
            e.printStackTrace();
        } catch (ServiceResponseException e) {
            e.printStackTrace();
            System.out.println(e.getHttpStatusCode());
            System.out.println(e.getRequestId());
            System.out.println(e.getErrorCode());
            System.out.println(e.getErrorMsg());
        }
    }
}

          

        
       

Example 1: Creating three pay-per-use, dedicated load balancers and binding private IPv4 addresses to them

        
         
           
           # coding: utf-8

import os
from huaweicloudsdkcore.auth.credentials import BasicCredentials
from huaweicloudsdkelb.v3.region.elb_region import ElbRegion
from huaweicloudsdkcore.exceptions import exceptions
from huaweicloudsdkelb.v3 import *

if __name__ == "__main__":
    # The AK and SK used for authentication are hard-coded or stored in plaintext, which has great security risks. It is recommended that the AK and SK be stored in ciphertext in configuration files or environment variables and decrypted during use to ensure security.
    # In this example, AK and SK are stored in environment variables for authentication. Before running this example, set environment variables CLOUD_SDK_AK and CLOUD_SDK_SK in the local environment
    ak = os.environ["CLOUD_SDK_AK"]
    sk = os.environ["CLOUD_SDK_SK"]
    projectId = "{project_id}"

    credentials = BasicCredentials(ak, sk, projectId)

    client = ElbClient.new_builder() \
        .with_credentials(credentials) \
        .with_region(ElbRegion.value_of("<YOUR REGION>")) \
        .build()

    try:
        request = BatchCreateLoadBalancersRequest()
        listAvailabilityZoneListLoadbalancer = [
            "AZ1"
        ]
        loadbalancerbody = BatchCreateLoadBalancerOption(
            number=3,
            name="loadbalancer",
            description="simple batch create lb",
            vip_subnet_cidr_id="1992ec06-f364-4ae3-b936-6a8cc24633b7",
            availability_zone_list=listAvailabilityZoneListLoadbalancer,
            admin_state_up=True
        )
        request.body = BatchCreateLoadBalancersRequestBody(
            loadbalancer=loadbalancerbody
        )
        response = client.batch_create_load_balancers(request)
        print(response)
    except exceptions.ClientRequestException as e:
        print(e.status_code)
        print(e.request_id)
        print(e.error_code)
        print(e.error_msg)

          

        
       

Example 1: Creating three shared load balancers and binding private IPv4 addresses to them

        
         
           
           # coding: utf-8

import os
from huaweicloudsdkcore.auth.credentials import BasicCredentials
from huaweicloudsdkelb.v3.region.elb_region import ElbRegion
from huaweicloudsdkcore.exceptions import exceptions
from huaweicloudsdkelb.v3 import *

if __name__ == "__main__":
    # The AK and SK used for authentication are hard-coded or stored in plaintext, which has great security risks. It is recommended that the AK and SK be stored in ciphertext in configuration files or environment variables and decrypted during use to ensure security.
    # In this example, AK and SK are stored in environment variables for authentication. Before running this example, set environment variables CLOUD_SDK_AK and CLOUD_SDK_SK in the local environment
    ak = os.environ["CLOUD_SDK_AK"]
    sk = os.environ["CLOUD_SDK_SK"]
    projectId = "{project_id}"

    credentials = BasicCredentials(ak, sk, projectId)

    client = ElbClient.new_builder() \
        .with_credentials(credentials) \
        .with_region(ElbRegion.value_of("<YOUR REGION>")) \
        .build()

    try:
        request = BatchCreateLoadBalancersRequest()
        listAvailabilityZoneListLoadbalancer = [
            "AZ1"
        ]
        loadbalancerbody = BatchCreateLoadBalancerOption(
            number=3,
            name="loadbalancer",
            description="simple batch create lb",
            vip_subnet_cidr_id="1992ec06-f364-4ae3-b936-6a8cc24633b7",
            guaranteed=False,
            availability_zone_list=listAvailabilityZoneListLoadbalancer,
            admin_state_up=True
        )
        request.body = BatchCreateLoadBalancersRequestBody(
            loadbalancer=loadbalancerbody
        )
        response = client.batch_create_load_balancers(request)
        print(response)
    except exceptions.ClientRequestException as e:
        print(e.status_code)
        print(e.request_id)
        print(e.error_code)
        print(e.error_msg)

          

        
       

Example 1: Creating three pay-per-use, dedicated load balancers and binding private IPv4 addresses to them

        
         
           
           package main

import (
	"fmt"
	"github.com/huaweicloud/huaweicloud-sdk-go-v3/core/auth/basic"
    elb "github.com/huaweicloud/huaweicloud-sdk-go-v3/services/elb/v3"
	"github.com/huaweicloud/huaweicloud-sdk-go-v3/services/elb/v3/model"
    region "github.com/huaweicloud/huaweicloud-sdk-go-v3/services/elb/v3/region"
)

func main() {
    // The AK and SK used for authentication are hard-coded or stored in plaintext, which has great security risks. It is recommended that the AK and SK be stored in ciphertext in configuration files or environment variables and decrypted during use to ensure security.
    // In this example, AK and SK are stored in environment variables for authentication. Before running this example, set environment variables CLOUD_SDK_AK and CLOUD_SDK_SK in the local environment
    ak := os.Getenv("CLOUD_SDK_AK")
    sk := os.Getenv("CLOUD_SDK_SK")
    projectId := "{project_id}"

    auth := basic.NewCredentialsBuilder().
        WithAk(ak).
        WithSk(sk).
        WithProjectId(projectId).
        Build()

    client := elb.NewElbClient(
        elb.ElbClientBuilder().
            WithRegion(region.ValueOf("<YOUR REGION>")).
            WithCredential(auth).
            Build())

    request := &model.BatchCreateLoadBalancersRequest{}
	var listAvailabilityZoneListLoadbalancer = []string{
        "AZ1",
    }
	numberLoadbalancer:= int32(3)
	nameLoadbalancer:= "loadbalancer"
	descriptionLoadbalancer:= "simple batch create lb"
	vipSubnetCidrIdLoadbalancer:= "1992ec06-f364-4ae3-b936-6a8cc24633b7"
	adminStateUpLoadbalancer:= true
	loadbalancerbody := &model.BatchCreateLoadBalancerOption{
		Number: &numberLoadbalancer,
		Name: &nameLoadbalancer,
		Description: &descriptionLoadbalancer,
		VipSubnetCidrId: &vipSubnetCidrIdLoadbalancer,
		AvailabilityZoneList: listAvailabilityZoneListLoadbalancer,
		AdminStateUp: &adminStateUpLoadbalancer,
	}
	request.Body = &model.BatchCreateLoadBalancersRequestBody{
		Loadbalancer: loadbalancerbody,
	}
	response, err := client.BatchCreateLoadBalancers(request)
	if err == nil {
        fmt.Printf("%+v\n", response)
    } else {
        fmt.Println(err)
    }
}

          

        
       

Example 1: Creating three shared load balancers and binding private IPv4 addresses to them

        
         
           
           package main

import (
	"fmt"
	"github.com/huaweicloud/huaweicloud-sdk-go-v3/core/auth/basic"
    elb "github.com/huaweicloud/huaweicloud-sdk-go-v3/services/elb/v3"
	"github.com/huaweicloud/huaweicloud-sdk-go-v3/services/elb/v3/model"
    region "github.com/huaweicloud/huaweicloud-sdk-go-v3/services/elb/v3/region"
)

func main() {
    // The AK and SK used for authentication are hard-coded or stored in plaintext, which has great security risks. It is recommended that the AK and SK be stored in ciphertext in configuration files or environment variables and decrypted during use to ensure security.
    // In this example, AK and SK are stored in environment variables for authentication. Before running this example, set environment variables CLOUD_SDK_AK and CLOUD_SDK_SK in the local environment
    ak := os.Getenv("CLOUD_SDK_AK")
    sk := os.Getenv("CLOUD_SDK_SK")
    projectId := "{project_id}"

    auth := basic.NewCredentialsBuilder().
        WithAk(ak).
        WithSk(sk).
        WithProjectId(projectId).
        Build()

    client := elb.NewElbClient(
        elb.ElbClientBuilder().
            WithRegion(region.ValueOf("<YOUR REGION>")).
            WithCredential(auth).
            Build())

    request := &model.BatchCreateLoadBalancersRequest{}
	var listAvailabilityZoneListLoadbalancer = []string{
        "AZ1",
    }
	numberLoadbalancer:= int32(3)
	nameLoadbalancer:= "loadbalancer"
	descriptionLoadbalancer:= "simple batch create lb"
	vipSubnetCidrIdLoadbalancer:= "1992ec06-f364-4ae3-b936-6a8cc24633b7"
	guaranteedLoadbalancer:= false
	adminStateUpLoadbalancer:= true
	loadbalancerbody := &model.BatchCreateLoadBalancerOption{
		Number: &numberLoadbalancer,
		Name: &nameLoadbalancer,
		Description: &descriptionLoadbalancer,
		VipSubnetCidrId: &vipSubnetCidrIdLoadbalancer,
		Guaranteed: &guaranteedLoadbalancer,
		AvailabilityZoneList: listAvailabilityZoneListLoadbalancer,
		AdminStateUp: &adminStateUpLoadbalancer,
	}
	request.Body = &model.BatchCreateLoadBalancersRequestBody{
		Loadbalancer: loadbalancerbody,
	}
	response, err := client.BatchCreateLoadBalancers(request)
	if err == nil {
        fmt.Printf("%+v\n", response)
    } else {
        fmt.Println(err)
    }
}

          

        
       

For SDK sample code of more programming languages, see the Sample Code tab in API Explorer. SDK sample code can be automatically generated.

Example 1: Creating three pay-per-use, dedicated load balancers and binding private IPv4 addresses to them

        
         
           
           package com.huaweicloud.sdk.test;

import com.huaweicloud.sdk.core.auth.ICredential;
import com.huaweicloud.sdk.core.auth.BasicCredentials;
import com.huaweicloud.sdk.core.exception.ConnectionException;
import com.huaweicloud.sdk.core.exception.RequestTimeoutException;
import com.huaweicloud.sdk.core.exception.ServiceResponseException;
import com.huaweicloud.sdk.elb.v3.region.ElbRegion;
import com.huaweicloud.sdk.elb.v3.*;
import com.huaweicloud.sdk.elb.v3.model.*;

import java.util.List;
import java.util.ArrayList;

public class BatchCreateLoadBalancersSolution {

    public static void main(String[] args) {
        // The AK and SK used for authentication are hard-coded or stored in plaintext, which has great security risks. It is recommended that the AK and SK be stored in ciphertext in configuration files or environment variables and decrypted during use to ensure security.
        // In this example, AK and SK are stored in environment variables for authentication. Before running this example, set environment variables CLOUD_SDK_AK and CLOUD_SDK_SK in the local environment
        String ak = System.getenv("CLOUD_SDK_AK");
        String sk = System.getenv("CLOUD_SDK_SK");
        String projectId = "{project_id}";

        ICredential auth = new BasicCredentials()
                .withProjectId(projectId)
                .withAk(ak)
                .withSk(sk);

        ElbClient client = ElbClient.newBuilder()
                .withCredential(auth)
                .withRegion(ElbRegion.valueOf("<YOUR REGION>"))
                .build();
        BatchCreateLoadBalancersRequest request = new BatchCreateLoadBalancersRequest();
        BatchCreateLoadBalancersRequestBody body = new BatchCreateLoadBalancersRequestBody();
        List<String> listLoadbalancerAvailabilityZoneList = new ArrayList<>();
        listLoadbalancerAvailabilityZoneList.add("AZ1");
        BatchCreateLoadBalancerOption loadbalancerbody = new BatchCreateLoadBalancerOption();
        loadbalancerbody.withNumber(3)
            .withName("loadbalancer")
            .withDescription("simple batch create lb")
            .withVipSubnetCidrId("1992ec06-f364-4ae3-b936-6a8cc24633b7")
            .withAvailabilityZoneList(listLoadbalancerAvailabilityZoneList)
            .withAdminStateUp(true);
        body.withLoadbalancer(loadbalancerbody);
        request.withBody(body);
        try {
            BatchCreateLoadBalancersResponse response = client.batchCreateLoadBalancers(request);
            System.out.println(response.toString());
        } catch (ConnectionException e) {
            e.printStackTrace();
        } catch (RequestTimeoutException e) {
            e.printStackTrace();
        } catch (ServiceResponseException e) {
            e.printStackTrace();
            System.out.println(e.getHttpStatusCode());
            System.out.println(e.getRequestId());
            System.out.println(e.getErrorCode());
            System.out.println(e.getErrorMsg());
        }
    }
}

          

        
       

Example 1: Creating three shared load balancers and binding private IPv4 addresses to them

        
         
           
           package com.huaweicloud.sdk.test;

import com.huaweicloud.sdk.core.auth.ICredential;
import com.huaweicloud.sdk.core.auth.BasicCredentials;
import com.huaweicloud.sdk.core.exception.ConnectionException;
import com.huaweicloud.sdk.core.exception.RequestTimeoutException;
import com.huaweicloud.sdk.core.exception.ServiceResponseException;
import com.huaweicloud.sdk.elb.v3.region.ElbRegion;
import com.huaweicloud.sdk.elb.v3.*;
import com.huaweicloud.sdk.elb.v3.model.*;

import java.util.List;
import java.util.ArrayList;

public class BatchCreateLoadBalancersSolution {

    public static void main(String[] args) {
        // The AK and SK used for authentication are hard-coded or stored in plaintext, which has great security risks. It is recommended that the AK and SK be stored in ciphertext in configuration files or environment variables and decrypted during use to ensure security.
        // In this example, AK and SK are stored in environment variables for authentication. Before running this example, set environment variables CLOUD_SDK_AK and CLOUD_SDK_SK in the local environment
        String ak = System.getenv("CLOUD_SDK_AK");
        String sk = System.getenv("CLOUD_SDK_SK");
        String projectId = "{project_id}";

        ICredential auth = new BasicCredentials()
                .withProjectId(projectId)
                .withAk(ak)
                .withSk(sk);

        ElbClient client = ElbClient.newBuilder()
                .withCredential(auth)
                .withRegion(ElbRegion.valueOf("<YOUR REGION>"))
                .build();
        BatchCreateLoadBalancersRequest request = new BatchCreateLoadBalancersRequest();
        BatchCreateLoadBalancersRequestBody body = new BatchCreateLoadBalancersRequestBody();
        List<String> listLoadbalancerAvailabilityZoneList = new ArrayList<>();
        listLoadbalancerAvailabilityZoneList.add("AZ1");
        BatchCreateLoadBalancerOption loadbalancerbody = new BatchCreateLoadBalancerOption();
        loadbalancerbody.withNumber(3)
            .withName("loadbalancer")
            .withDescription("simple batch create lb")
            .withVipSubnetCidrId("1992ec06-f364-4ae3-b936-6a8cc24633b7")
            .withGuaranteed(false)
            .withAvailabilityZoneList(listLoadbalancerAvailabilityZoneList)
            .withAdminStateUp(true);
        body.withLoadbalancer(loadbalancerbody);
        request.withBody(body);
        try {
            BatchCreateLoadBalancersResponse response = client.batchCreateLoadBalancers(request);
            System.out.println(response.toString());
        } catch (ConnectionException e) {
            e.printStackTrace();
        } catch (RequestTimeoutException e) {
            e.printStackTrace();
        } catch (ServiceResponseException e) {
            e.printStackTrace();
            System.out.println(e.getHttpStatusCode());
            System.out.println(e.getRequestId());
            System.out.println(e.getErrorCode());
            System.out.println(e.getErrorMsg());
        }
    }
}

          

        
       

Example 1: Creating three pay-per-use, dedicated load balancers and binding private IPv4 addresses to them

        
         
           
           # coding: utf-8

import os
from huaweicloudsdkcore.auth.credentials import BasicCredentials
from huaweicloudsdkelb.v3.region.elb_region import ElbRegion
from huaweicloudsdkcore.exceptions import exceptions
from huaweicloudsdkelb.v3 import *

if __name__ == "__main__":
    # The AK and SK used for authentication are hard-coded or stored in plaintext, which has great security risks. It is recommended that the AK and SK be stored in ciphertext in configuration files or environment variables and decrypted during use to ensure security.
    # In this example, AK and SK are stored in environment variables for authentication. Before running this example, set environment variables CLOUD_SDK_AK and CLOUD_SDK_SK in the local environment
    ak = os.environ["CLOUD_SDK_AK"]
    sk = os.environ["CLOUD_SDK_SK"]
    projectId = "{project_id}"

    credentials = BasicCredentials(ak, sk, projectId)

    client = ElbClient.new_builder() \
        .with_credentials(credentials) \
        .with_region(ElbRegion.value_of("<YOUR REGION>")) \
        .build()

    try:
        request = BatchCreateLoadBalancersRequest()
        listAvailabilityZoneListLoadbalancer = [
            "AZ1"
        ]
        loadbalancerbody = BatchCreateLoadBalancerOption(
            number=3,
            name="loadbalancer",
            description="simple batch create lb",
            vip_subnet_cidr_id="1992ec06-f364-4ae3-b936-6a8cc24633b7",
            availability_zone_list=listAvailabilityZoneListLoadbalancer,
            admin_state_up=True
        )
        request.body = BatchCreateLoadBalancersRequestBody(
            loadbalancer=loadbalancerbody
        )
        response = client.batch_create_load_balancers(request)
        print(response)
    except exceptions.ClientRequestException as e:
        print(e.status_code)
        print(e.request_id)
        print(e.error_code)
        print(e.error_msg)

          

        
       

Example 1: Creating three shared load balancers and binding private IPv4 addresses to them

        
         
           
           # coding: utf-8

import os
from huaweicloudsdkcore.auth.credentials import BasicCredentials
from huaweicloudsdkelb.v3.region.elb_region import ElbRegion
from huaweicloudsdkcore.exceptions import exceptions
from huaweicloudsdkelb.v3 import *

if __name__ == "__main__":
    # The AK and SK used for authentication are hard-coded or stored in plaintext, which has great security risks. It is recommended that the AK and SK be stored in ciphertext in configuration files or environment variables and decrypted during use to ensure security.
    # In this example, AK and SK are stored in environment variables for authentication. Before running this example, set environment variables CLOUD_SDK_AK and CLOUD_SDK_SK in the local environment
    ak = os.environ["CLOUD_SDK_AK"]
    sk = os.environ["CLOUD_SDK_SK"]
    projectId = "{project_id}"

    credentials = BasicCredentials(ak, sk, projectId)

    client = ElbClient.new_builder() \
        .with_credentials(credentials) \
        .with_region(ElbRegion.value_of("<YOUR REGION>")) \
        .build()

    try:
        request = BatchCreateLoadBalancersRequest()
        listAvailabilityZoneListLoadbalancer = [
            "AZ1"
        ]
        loadbalancerbody = BatchCreateLoadBalancerOption(
            number=3,
            name="loadbalancer",
            description="simple batch create lb",
            vip_subnet_cidr_id="1992ec06-f364-4ae3-b936-6a8cc24633b7",
            guaranteed=False,
            availability_zone_list=listAvailabilityZoneListLoadbalancer,
            admin_state_up=True
        )
        request.body = BatchCreateLoadBalancersRequestBody(
            loadbalancer=loadbalancerbody
        )
        response = client.batch_create_load_balancers(request)
        print(response)
    except exceptions.ClientRequestException as e:
        print(e.status_code)
        print(e.request_id)
        print(e.error_code)
        print(e.error_msg)

          

        
       

Example 1: Creating three pay-per-use, dedicated load balancers and binding private IPv4 addresses to them

        
         
           
           package main

import (
	"fmt"
	"github.com/huaweicloud/huaweicloud-sdk-go-v3/core/auth/basic"
    elb "github.com/huaweicloud/huaweicloud-sdk-go-v3/services/elb/v3"
	"github.com/huaweicloud/huaweicloud-sdk-go-v3/services/elb/v3/model"
    region "github.com/huaweicloud/huaweicloud-sdk-go-v3/services/elb/v3/region"
)

func main() {
    // The AK and SK used for authentication are hard-coded or stored in plaintext, which has great security risks. It is recommended that the AK and SK be stored in ciphertext in configuration files or environment variables and decrypted during use to ensure security.
    // In this example, AK and SK are stored in environment variables for authentication. Before running this example, set environment variables CLOUD_SDK_AK and CLOUD_SDK_SK in the local environment
    ak := os.Getenv("CLOUD_SDK_AK")
    sk := os.Getenv("CLOUD_SDK_SK")
    projectId := "{project_id}"

    auth := basic.NewCredentialsBuilder().
        WithAk(ak).
        WithSk(sk).
        WithProjectId(projectId).
        Build()

    client := elb.NewElbClient(
        elb.ElbClientBuilder().
            WithRegion(region.ValueOf("<YOUR REGION>")).
            WithCredential(auth).
            Build())

    request := &model.BatchCreateLoadBalancersRequest{}
	var listAvailabilityZoneListLoadbalancer = []string{
        "AZ1",
    }
	numberLoadbalancer:= int32(3)
	nameLoadbalancer:= "loadbalancer"
	descriptionLoadbalancer:= "simple batch create lb"
	vipSubnetCidrIdLoadbalancer:= "1992ec06-f364-4ae3-b936-6a8cc24633b7"
	adminStateUpLoadbalancer:= true
	loadbalancerbody := &model.BatchCreateLoadBalancerOption{
		Number: &numberLoadbalancer,
		Name: &nameLoadbalancer,
		Description: &descriptionLoadbalancer,
		VipSubnetCidrId: &vipSubnetCidrIdLoadbalancer,
		AvailabilityZoneList: listAvailabilityZoneListLoadbalancer,
		AdminStateUp: &adminStateUpLoadbalancer,
	}
	request.Body = &model.BatchCreateLoadBalancersRequestBody{
		Loadbalancer: loadbalancerbody,
	}
	response, err := client.BatchCreateLoadBalancers(request)
	if err == nil {
        fmt.Printf("%+v\n", response)
    } else {
        fmt.Println(err)
    }
}

          

        
       

Example 1: Creating three shared load balancers and binding private IPv4 addresses to them

        
         
           
           package main

import (
	"fmt"
	"github.com/huaweicloud/huaweicloud-sdk-go-v3/core/auth/basic"
    elb "github.com/huaweicloud/huaweicloud-sdk-go-v3/services/elb/v3"
	"github.com/huaweicloud/huaweicloud-sdk-go-v3/services/elb/v3/model"
    region "github.com/huaweicloud/huaweicloud-sdk-go-v3/services/elb/v3/region"
)

func main() {
    // The AK and SK used for authentication are hard-coded or stored in plaintext, which has great security risks. It is recommended that the AK and SK be stored in ciphertext in configuration files or environment variables and decrypted during use to ensure security.
    // In this example, AK and SK are stored in environment variables for authentication. Before running this example, set environment variables CLOUD_SDK_AK and CLOUD_SDK_SK in the local environment
    ak := os.Getenv("CLOUD_SDK_AK")
    sk := os.Getenv("CLOUD_SDK_SK")
    projectId := "{project_id}"

    auth := basic.NewCredentialsBuilder().
        WithAk(ak).
        WithSk(sk).
        WithProjectId(projectId).
        Build()

    client := elb.NewElbClient(
        elb.ElbClientBuilder().
            WithRegion(region.ValueOf("<YOUR REGION>")).
            WithCredential(auth).
            Build())

    request := &model.BatchCreateLoadBalancersRequest{}
	var listAvailabilityZoneListLoadbalancer = []string{
        "AZ1",
    }
	numberLoadbalancer:= int32(3)
	nameLoadbalancer:= "loadbalancer"
	descriptionLoadbalancer:= "simple batch create lb"
	vipSubnetCidrIdLoadbalancer:= "1992ec06-f364-4ae3-b936-6a8cc24633b7"
	guaranteedLoadbalancer:= false
	adminStateUpLoadbalancer:= true
	loadbalancerbody := &model.BatchCreateLoadBalancerOption{
		Number: &numberLoadbalancer,
		Name: &nameLoadbalancer,
		Description: &descriptionLoadbalancer,
		VipSubnetCidrId: &vipSubnetCidrIdLoadbalancer,
		Guaranteed: &guaranteedLoadbalancer,
		AvailabilityZoneList: listAvailabilityZoneListLoadbalancer,
		AdminStateUp: &adminStateUpLoadbalancer,
	}
	request.Body = &model.BatchCreateLoadBalancersRequestBody{
		Loadbalancer: loadbalancerbody,
	}
	response, err := client.BatchCreateLoadBalancers(request)
	if err == nil {
        fmt.Printf("%+v\n", response)
    } else {
        fmt.Println(err)
    }
}

          

        
       

For SDK sample code of more programming languages, see the Sample Code tab in API Explorer. SDK sample code can be automatically generated.

Status Codes

Status Code	Description
202	Normal response

Error Codes

See Error Codes.

Parent Topic: Load Balancer

Previous topic: Creating a Load Balancer

Next topic: Upgrading a Load Balancer

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