Help Center/ Elastic Load Balance/ API Reference/ APIs (V3)/ Load Balancer/ Batch Creating Load Balancers
Updated on 2025-09-22 GMT+08:00
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Batch Creating Load Balancers

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 in batches:

  • 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.

  • 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 an existing 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 a load balancer.

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

Definition: Specifies the project ID. For details about how to obtain a project ID, see Obtaining a Project ID.

Constraints: N/A

Range: The value can contain a maximum of 32 characters, including digits and lowercase letters.

Default value: N/A

Request Parameters

Table 2 Request header parameters

Parameter

Mandatory

Type

Description

X-Auth-Token

No

String

Definition: Specifies the token used for IAM authentication.

Constraints: N/A

Range: N/A

Default value: N/A
Table 3 Request body parameters

Parameter

Mandatory

Type

Description

loadbalancer

Yes

BatchCreateLoadBalancerOption object

Specifies the load balancer.

Constraints: N/A
Table 4 BatchCreateLoadBalancerOption

Parameter

Mandatory

Type

Description

id

No

String

Definition: Specifies the load balancer ID.

Constraints: N/A

Range: N/A

Default value: N/A

This parameter is unsupported. Please do not use it.

ids

No

Array of strings

Definition: Specifies the IDs of the load balancers created in batches.

Constraints: N/A

Range: N/A

Default value: N/A

This parameter is unsupported. Please do not use it.

project_id

No

String

Definition: Specifies the project ID. For details about how to obtain a project ID, see Obtaining a Project ID.

Constraints: N/A

Range: The value can contain a maximum of 32 characters, including digits and lowercase letters.

Default value: N/A

number

No

Integer

Definition: Specifies the number of load balancers to be created.

Constraints: N/A

Range: 1 to 10

Default value: 1

name

No

String

Definition: Specifies the load balancer name.

  • 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.

Constraints: N/A

Range: N/A

Default value: N/A

description

No

String

Definition: Provides supplementary information about the load balancers.

Constraints: N/A

Range: N/A

Default value: N/A

vip_address

No

String

Definition: Specifies the private IPv4 address of 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.

Constraints:

  • 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.

Range: N/A

Default value: N/A

vip_subnet_cidr_id

No

String

Definition: 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).

Constraints:

  • 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.

Range: N/A

Default value: N/A

ipv6_vip_virsubnet_id

No

String

Definition: 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).

Constraints:

  • 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.

Range: N/A

Default value: N/A

provider

No

String

Definition: Specifies the provider of the load balancer. The value is fixed to vlb.

Constraints: This parameter cannot be specified when shared load balancers are created in batches.

Range: N/A

Default value: N/A

l4_flavor_id

No

String

Definition: Specifies the ID of a flavor at Layer 4.

You can query parameter id in the response by calling the API (GET https://{ELB_Endpoint}/v3/{project_id}/elb/flavors?type=L4).

Constraints:

  • 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 flavors and will be billed by the flavor you select.

  • If the flavor type is L4_elastic_max, the load balancer uses the elastic flavors and will be billed by how many LCUs you use.

  • This parameter cannot be specified when shared load balancers are created in batches.

Range: N/A

Default value: N/A

l7_flavor_id

No

String

Definition: Specifies the ID of a flavor at Layer 7.

You can query parameter id in the response by calling the API (GET https://{ELB_Endpoint}/v3/{project_id}/elb/flavors?type=L7).

Constraints:

  • 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 flavors and will be billed by the flavor you select.

  • If the flavor type is L7_elastic_max, the load balancer uses the elastic flavors and will be billed by how many LCUs you use.

  • This parameter cannot be specified when shared load balancers are created in batches.

Range: N/A

Default value: N/A

guaranteed

No

Boolean

Definition: Specifies whether to create dedicated or shared load balancers.

Constraints: N/A

Range:

  • true: Dedicated load balancers will be created.

  • false: Shared load balancers will be created.

Default value: true

vpc_id

No

String

Definition: Specifies the ID of the VPC where the load balancer is located.

You can query parameter id in the response by calling the API (GET https://{VPC_Endpoint}/v1/{project_id}/vpcs).

Constraints:

  • 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.

Range: N/A

Default value: N/A

availability_zone_list

Yes

Array of strings

Definition: Specifies the list of AZs where the load balancers 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.

Constraints:

  • This parameter cannot be specified when shared load balancers are created in batches.

Range: N/A

Default value: N/A

enterprise_project_id

No

String

Definition: Specifies the ID of the enterprise project. If no enterprise project ID is specified during resource creation, 0 is returned, indicating that the resource belongs to the default enterprise project.

Constraints: The enterprise project ID cannot be "", 0, or an enterprise project ID that does not exist.

Range: N/A

Default value: 0

tags

No

Array of Tag objects

Definition: Specifies the tags added to the load balancer. Example: "tags":[{"key":"my_tag","value":"my_tag_value"}]

Constraints: N/A

admin_state_up

No

Boolean

Definition: Specifies whether the load balancer is enabled.

Constraints: N/A

Range:

  • true: enabled

  • false: disabled

Default value: true

ipv6_bandwidth

No

BandwidthRef object

Definition: Specifies the ID of the bandwidth.

Constraints:

  • This parameter is available only when you create or update a load balancer with a public address.

  • If you bind a new EIP to the load balancer and specify a shared bandwidth, this EIP will be added to the shared bandwidth.

bandwidth

No

BandwidthRef object

Definition: Specifies the ID of the bandwidth.

Constraints:

  • This parameter is available only when you create or update a load balancer with a public address.

  • If you bind a new EIP to the load balancer and specify a shared bandwidth, this EIP will be added to the shared bandwidth.

publicip_ids

No

Array of strings

Definition: 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.

Constraints: N/A

Range: N/A

Default value: N/A

publicip

No

CreateLoadBalancerPublicIpOption object

Definition: Specifies the request parameters for binding a new EIP to the load balancer.

Constraints: N/A

elb_virsubnet_ids

No

Array of strings

Definition: Specifies the network 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 network IDs will be used based on the following rules:

  • If IPv6 is enabled for a load balancer, the network IDs of subnets specified in ipv6_vip_virsubnet_id will be used.

  • If IPv6 is not enabled for a load balancer, the network IDs of subnets specified in vip_subnet_cidr_id will be used.

  • If a load balancer only works on the public network, any subnet in the VPC where the load balancer is deployed will be used. The subnet with the most available IP addresses is 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.

Constraints: The subnets must be in the VPC where the load balancer works.

Range: N/A

Default value: N/A

ip_target_enable

No

Boolean

Definition: Specifies whether to add backend servers that are not in the load balancer's VPC.

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.

Constraints:

  • This function cannot be disabled once it is enabled.

  • If you want to enable IP as a Backend for a load balancer in a shared VPC, ensure that a VPC peering connection has been created to connect the VPCs. Otherwise, the communication will fail.

  • This function is supported only by dedicated load balancers.

Range:

  • true: This option will be enabled.

  • false: This option will be disabled.

Default value: false

deletion_protection_enable

No

Boolean

Definition: Specifies whether to enable deletion protection.

Constraints: This parameter cannot be specified when shared load balancers are created in batches.

Range: false (disable this option) or true (enable this option).

Default value: false

NOTE:
Disable deletion protection or removal protection for your resources before deregistering your account.

autoscaling

No

CreateLoadbalancerAutoscalingOption object

Definition: Specifies information about elastic scaling. If elastic scaling is enabled, the load balancer flavors can be automatically adjusted based on incoming traffic.

Constraints:

  • This parameter is only available for whitelisted users.

  • 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.

NOTE:
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 flavors will be created and you will be billed for the minimum flavors.

waf_failure_action

No

String

Definition: Specifies traffic distributing policies when the WAF is faulty.

Constraints: This parameter takes effect only when WAF is enabled for the load balancer.

Range:

  • discard: Traffic will not be distributed.

  • forward: Traffic will be distributed to the backend servers.

Default value: forward

protection_status

No

String

Definition: Specifies the protection status.

Constraints: N/A

Range:

  • nonProtection: The resource is not protected.

  • consoleProtection: Modification is not allowed on the console.

Default value: nonProtection

protection_reason

No

String

Definition: Specifies why modification protection is enabled.

Constraints: This parameter is valid only when protection_status is set to consoleProtection.

Range: The value can contain a maximum of 255 Unicode characters, excluding angle brackets (<>).

Default value: N/A

ipv6_vip_address

No

String

Definition: Specifies the IPv6 address of the load balancer.

Constraints:

  • 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.

Range: N/A

Default value: N/A
Table 5 Tag

Parameter

Mandatory

Type

Description

key

No

String

Definition: Specifies the tag key.

Range: N/A

value

No

String

Definition: Specifies the tag value.

Range: N/A
Table 6 BandwidthRef

Parameter

Mandatory

Type

Description

id

Yes

String

Definition: Specifies the ID of the shared bandwidth.

Constraints: N/A

Range: N/A

Default value: N/A
Table 7 CreateLoadBalancerPublicIpOption

Parameter

Mandatory

Type

Description

ip_version

No

Integer

Definition: Specifies the IP address version.

Constraints: N/A

Range:

  • 4: IPv4 addresses

  • 6: IPv6 addresses

Default value: 4

network_type

Yes

String

Definition: 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.

Range: 5_bgp

Default value: 5_bgp

billing_info

No

String

Definition: Provides billing information about the EIP.

Constraints:

  • If the value is left blank, the resource is billed on a pay-per-use basis.

Range: N/A

Default value: N/A

This parameter is unsupported. Please do not use it.

description

No

String

Definition: Provides supplementary information about the EIP.

Constraints: N/A

Range: N/A

Default value: N/A

bandwidth

Yes

CreateLoadBalancerBandwidthOption object

Definition: Provides supplementary information about the bandwidth.

Constraints: N/A
Table 8 CreateLoadBalancerBandwidthOption

Parameter

Mandatory

Type

Description

name

No

String

Definition: Specifies the bandwidth name.

Constraints:

  • This parameter is mandatory if share_type is set to PER.

  • This parameter will be ignored if the bandwidth reference has a specific ID.

Range: The value can contain 1 to 64 characters, including digits, letters, underscores (_), hyphens (-), and periods (.).

Default value: N/A

size

No

Integer

Definition: Specifies the bandwidth size.

Constraints:

  • This parameter is mandatory if id is set to null.

  • The minimum increment for bandwidth adjustment varies by bandwidth range. The details are as follows:

    • 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.

Range: The default value ranges from 1 Mbit/s to 2,000 Mbit/s, which may vary by region and can be viewed on the management console.

Default value: N/A

charge_mode

No

String

Definition: Specifies how the bandwidth used by the EIP is billed.

Constraints: This parameter is mandatory if id is set to null.

Range:

  • bandwidth: billed by bandwidth

  • traffic: billed by traffic

Default value: N/A

share_type

No

String

Definition: Specifies the bandwidth type.

Constraints:

  • 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.

Range:

  • PER: dedicated bandwidths

  • WHOLE: shared bandwidths

Default value: N/A

billing_info

No

String

Definition: Provides resource billing information.

Constraints: N/A

Range: N/A

Default value: N/A

This parameter is unsupported. Please do not use it.

id

No

String

Definition: Specifies the ID of the shared bandwidth. An existing shared bandwidth is used.

Constraints: The ID must be an existing shared bandwidth ID. There is no need to specify this parameter if the billing mode is yearly/monthly. This parameter will be ignored if it is left blank.

Range: N/A

Default value: N/A
Table 9 CreateLoadbalancerAutoscalingOption

Parameter

Mandatory

Type

Description

enable

Yes

Boolean

Definition: Specifies whether to enable elastic scaling for the load balancer.

Constraints: N/A

Range:

  • true: This option will be enabled.

  • false: This option will be disabled.

Default value: N/A

min_l7_flavor_id

No

String

Definition: Specifies the ID of the minimum elastic flavor at Layer 7.

Constraints: N/A

Range: N/A

Default value: N/A

Response Parameters

Status code: 202

Table 10 Response body parameters

Parameter

Type

Description

loadbalancer_ids

Array of strings

Definition: Specifies the IDs of the load balancers to be created in batches.

Range: N/A

job_id

String

Definition: Specifies task ID of the batch creation.

Range: N/A

request_id

String

Definition: Specifies the request ID.

Range: The value is automatically generated, and can contain characters including digits, lowercase letters, and hyphens (-).

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 3: 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.

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

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

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    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

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    # 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 3: Creating three shared load balancers and binding private IPv4 addresses to them

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    # 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

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

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    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