Updated on 2025-09-22 GMT+08:00

Creating a Log

Function

This API is used to create a log.

Calling Method

For details, see Calling APIs.

URI

POST /v3/{project_id}/elb/logtanks

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

Yes

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

logtank

Yes

CreateLogtankOption object

Definition: Specifies the request parameters for creating a log.

Constraints: N/A

Table 4 CreateLogtankOption

Parameter

Mandatory

Type

Description

loadbalancer_id

Yes

String

Definition: Specifies the load balancer ID.

Constraints: N/A

Range: N/A

Default value: N/A

log_group_id

Yes

String

Definition: Specifies the log group ID. This parameter is available for all services other than ELB.

Constraints: N/A

Range: N/A

Default value: N/A

log_topic_id

Yes

String

Definition: Specifies the ID of the log subscription topic. This parameter is available for all services other than ELB.

Constraints: N/A

Range: N/A

Default value: N/A

Response Parameters

Status code: 201

Table 5 Response body parameters

Parameter

Type

Description

logtank

Logtank object

Definition: Provides supplementary information.

request_id

String

Definition: Specifies the request ID.

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

Table 6 Logtank

Parameter

Type

Description

id

String

Definition: Specifies the log ID.

Range: N/A

project_id

String

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

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

loadbalancer_id

String

Definition: Specifies the load balancer ID.

Range: N/A

log_group_id

String

Definition: Specifies the log group ID.

Range: N/A

log_topic_id

String

Definition: Specifies the log topic ID.

Range: N/A

Example Requests

Creating a log for a load balancer

POST https://{ELB_Endpoint}/v3/060576798a80d5762fafc01a9b5eedc7/elb/logtanks

{
  "logtank" : {
    "log_topic_id" : "5b9b8370-a1fc-4c59-a509-483a673c8a94",
    "log_group_id" : "7733882e-f7fa-4fb0-a460-0605c48a2280",
    "loadbalancer_id" : "47ecc304-3f1a-4cc6-9c1c-72add483b9ce"
  }
}

Example Responses

Status code: 201

Created

{
  "request_id" : "c5aea69b657295bef71cd05da2959206",
  "logtank" : {
    "project_id" : "060576798a80d5762fafc01a9b5eedc7",
    "log_topic_id" : "5b9b8370-a1fc-4c59-a509-483a673c8a94",
    "id" : "603e507f-3e18-498b-9460-01a3b6c28fc5",
    "log_group_id" : "7733882e-f7fa-4fb0-a460-0605c48a2280",
    "loadbalancer_id" : "47ecc304-3f1a-4cc6-9c1c-72add483b9ce"
  }
}

SDK Sample Code

The SDK sample code is as follows.

Creating a log for a load balancer

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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.*;


public class CreateLogtankSolution {

    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();
        CreateLogtankRequest request = new CreateLogtankRequest();
        CreateLogtankRequestBody body = new CreateLogtankRequestBody();
        CreateLogtankOption logtankbody = new CreateLogtankOption();
        logtankbody.withLoadbalancerId("47ecc304-3f1a-4cc6-9c1c-72add483b9ce")
            .withLogGroupId("7733882e-f7fa-4fb0-a460-0605c48a2280")
            .withLogTopicId("5b9b8370-a1fc-4c59-a509-483a673c8a94");
        body.withLogtank(logtankbody);
        request.withBody(body);
        try {
            CreateLogtankResponse response = client.createLogtank(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());
        }
    }
}

Creating a log for a load balancer

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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 = CreateLogtankRequest()
        logtankbody = CreateLogtankOption(
            loadbalancer_id="47ecc304-3f1a-4cc6-9c1c-72add483b9ce",
            log_group_id="7733882e-f7fa-4fb0-a460-0605c48a2280",
            log_topic_id="5b9b8370-a1fc-4c59-a509-483a673c8a94"
        )
        request.body = CreateLogtankRequestBody(
            logtank=logtankbody
        )
        response = client.create_logtank(request)
        print(response)
    except exceptions.ClientRequestException as e:
        print(e.status_code)
        print(e.request_id)
        print(e.error_code)
        print(e.error_msg)

Creating a log for a load balancer

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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.CreateLogtankRequest{}
	logtankbody := &model.CreateLogtankOption{
		LoadbalancerId: "47ecc304-3f1a-4cc6-9c1c-72add483b9ce",
		LogGroupId: "7733882e-f7fa-4fb0-a460-0605c48a2280",
		LogTopicId: "5b9b8370-a1fc-4c59-a509-483a673c8a94",
	}
	request.Body = &model.CreateLogtankRequestBody{
		Logtank: logtankbody,
	}
	response, err := client.CreateLogtank(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

201

Created

Error Codes

See Error Codes.