Updated on 2026-10-27 GMT+08:00

Adding a Tag to a Supplementary Network Interface

Function

This API is used to add a tag to a supplementary network interface.

This API is idempotent. If a to-be-created tag has the same key as an existing tag, the tag will be created and overwrite the existing one.

Calling Method

For details, see Calling APIs.

Authorization Information

Each account has all the permissions required to call all APIs, but IAM users must be assigned the required permissions.

  • If you are using role/policy-based authorization, see Permissions Policies and Supported Actions for details on the required permissions.
  • If you are using identity policy-based authorization, the following identity policy-based permissions are required.

    Action

    Access Level

    Resource Type (*: required)

    Condition Key

    Alias

    Dependencies

    vpc:subNetworkInterfaces:createTags

    Tagging

    subNetworkInterface *

    • g:EnterpriseProjectId

    • g:ResourceTag/<tag-key>

    • vpc:SubNetworkInterfaceId

    • vpc:SubnetId

    • vpc:VpcId

    vpc:subNetworkInterfaceTags:create

    -

    -

    • g:RequestTag/<tag-key>

    • g:TagKeys

URI

POST /v3/{project_id}/sub-network-interfaces/{sub_network_interface_id}/tags

Table 1 Path Parameters

Parameter

Mandatory

Type

Description

project_id

Yes

String

Definition

Project ID. For details about how to obtain a project ID, see Obtaining a Project ID.

Constraints

N/A

Range

N/A

Default Value

N/A

sub_network_interface_id

Yes

String

Definition

ID of a supplementary network interface.

Constraints

N/A

Range

N/A

Default Value

N/A

Request Parameters

Table 2 Request body parameters

Parameter

Mandatory

Type

Description

tag

Yes

ResourceTag object

Definition

Request body for creating a tag for a supplementary network interface.

Constraints

N/A

Range

N/A

Default Value

N/A

Table 3 ResourceTag

Parameter

Mandatory

Type

Description

key

Yes

String

Definition

Tag key.

Constraints

  • A tag key can contain a maximum of 128 Unicode characters and cannot be left blank.

  • Each tag key of a resource must be unique.

  • It can contain:

    • Digits

    • Special characters: underscores (_), periods (.), colons (:), plus signs (+), hyphens (-), and equal signs (=)

    • Chinese characters

- Letters

Range

N/A

Default Value

N/A

value

Yes

String

Definition

Tag value.

Constraints

  • Each value can contain a maximum of 255 Unicode characters and can be left blank.

  • It can contain:

    • Digits

    • Special characters: underscores (_), periods (.), colons (:), plus signs (+), hyphens (-), and equal signs (=)

    • Chinese characters

- Letters

Range

N/A

Default Value

N/A

Response Parameters

Status code: 204

None

Example Requests

Add a tag to a supplementary network interface. The tag key is key1, and the tag value is value1.

POST https://{Endpoint}/v3/{project_id}/sub-network-interfaces/{sub_network_interface_id}/tags

{
  "tag" : {
    "key" : "key1",
    "value" : "value1"
  }
}

Example Responses

None

SDK Sample Code

The SDK sample code is as follows.

Add a tag to a supplementary network interface. The tag key is key1, and the tag value is value1.

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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.vpc.v3.region.VpcRegion;
import com.huaweicloud.sdk.vpc.v3.*;
import com.huaweicloud.sdk.vpc.v3.model.*;


public class CreateSubNetworkInterfaceTagSolution {

    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);

        VpcClient client = VpcClient.newBuilder()
                .withCredential(auth)
                .withRegion(VpcRegion.valueOf("<YOUR REGION>"))
                .build();
        CreateSubNetworkInterfaceTagRequest request = new CreateSubNetworkInterfaceTagRequest();
        request.withSubNetworkInterfaceId("{sub_network_interface_id}");
        CreateSubNetworkInterfaceTagRequestBody body = new CreateSubNetworkInterfaceTagRequestBody();
        ResourceTag tagbody = new ResourceTag();
        tagbody.withKey("key1")
            .withValue("value1");
        body.withTag(tagbody);
        request.withBody(body);
        try {
            CreateSubNetworkInterfaceTagResponse response = client.createSubNetworkInterfaceTag(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());
        }
    }
}

Add a tag to a supplementary network interface. The tag key is key1, and the tag value is value1.

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# coding: utf-8

import os
from huaweicloudsdkcore.auth.credentials import BasicCredentials
from huaweicloudsdkvpc.v3.region.vpc_region import VpcRegion
from huaweicloudsdkcore.exceptions import exceptions
from huaweicloudsdkvpc.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 = VpcClient.new_builder() \
        .with_credentials(credentials) \
        .with_region(VpcRegion.value_of("<YOUR REGION>")) \
        .build()

    try:
        request = CreateSubNetworkInterfaceTagRequest()
        request.sub_network_interface_id = "{sub_network_interface_id}"
        tagbody = ResourceTag(
            key="key1",
            value="value1"
        )
        request.body = CreateSubNetworkInterfaceTagRequestBody(
            tag=tagbody
        )
        response = client.create_sub_network_interface_tag(request)
        print(response)
    except exceptions.ClientRequestException as e:
        print(e.status_code)
        print(e.request_id)
        print(e.error_code)
        print(e.error_msg)

Add a tag to a supplementary network interface. The tag key is key1, and the tag value is value1.

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package main

import (
	"fmt"
	"github.com/huaweicloud/huaweicloud-sdk-go-v3/core/auth/basic"
    vpc "github.com/huaweicloud/huaweicloud-sdk-go-v3/services/vpc/v3"
	"github.com/huaweicloud/huaweicloud-sdk-go-v3/services/vpc/v3/model"
    region "github.com/huaweicloud/huaweicloud-sdk-go-v3/services/vpc/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, err := basic.NewCredentialsBuilder().
        WithAk(ak).
        WithSk(sk).
        WithProjectId(projectId).
        SafeBuild()

    if err != nil {
        fmt.Println(err)
        return
    }

    hcClient, err := vpc.VpcClientBuilder().
         WithRegion(region.ValueOf("<YOUR REGION>")).
         WithCredential(auth).
         SafeBuild()


    if err != nil {
        fmt.Println(err)
        return
    }

    client := vpc.NewVpcClient(hcClient)

    request := &model.CreateSubNetworkInterfaceTagRequest{}
	request.SubNetworkInterfaceId = "{sub_network_interface_id}"
	tagbody := &model.ResourceTag{
		Key: "key1",
		Value: "value1",
	}
	request.Body = &model.CreateSubNetworkInterfaceTagRequestBody{
		Tag: tagbody,
	}
	response, err := client.CreateSubNetworkInterfaceTag(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

204

The response to the request is normal. For more status codes, see Status Codes.

Error Codes

See Error Codes.