Updated on 2024-11-06 GMT+08:00

Querying Sessions

Function

This API is used to query sessions.

Calling Method

For details, see Calling APIs.

URI

POST /v2/{project_id}/instances/{instance_id}/clients

Table 1 Path Parameters

Parameter

Mandatory

Type

Description

project_id

Yes

String

Project ID. For details, see Obtaining a Project ID.

instance_id

Yes

String

Instance ID.

Request Parameters

Table 2 Request body parameters

Parameter

Mandatory

Type

Description

node_id

Yes

String

Node ID.

clean_cache

No

Boolean

Indicates whether to re-query and save the session list.

Response Parameters

Status code: 400

Table 3 Response body parameters

Parameter

Type

Description

error_msg

String

Error message.

error_code

String

Error code.

error_ext_msg

String

Error message details.

Status code: 401

Table 4 Response body parameters

Parameter

Type

Description

error_msg

String

Error message.

error_code

String

Error code.

error_ext_msg

String

Error message details.

Status code: 403

Table 5 Response body parameters

Parameter

Type

Description

error_msg

String

Error message.

error_code

String

Error code.

error_ext_msg

String

Error message details.

Status code: 404

Table 6 Response body parameters

Parameter

Type

Description

error_msg

String

Error message.

error_code

String

Error code.

error_ext_msg

String

Error message details.

Status code: 500

Table 7 Response body parameters

Parameter

Type

Description

error_msg

String

Error message.

error_code

String

Error code.

error_ext_msg

String

Error message details.

Example Requests

POST https://{dcs_endpoint}/v2/{project_id}/instances/{instance_id}/clients

{
  "node_id" : "8f7ee181-88e2-49b7-a4bf-81f18f93a135",
  "clean_cache" : true
}

Example Responses

Status code: 200

Successful

{
  "job_id" : "8abf6e1e824e204401824e3e621b0042"
}

Status code: 400

Invalid request.

{
  "error_code" : "DCS.4957",
  "error_msg" : "This operation is not allowed when the task is in the current state."
}

SDK Sample Code

The SDK sample code is as follows.

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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.dcs.v2.region.DcsRegion;
import com.huaweicloud.sdk.dcs.v2.*;
import com.huaweicloud.sdk.dcs.v2.model.*;


public class ScanClientsSolution {

    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);

        DcsClient client = DcsClient.newBuilder()
                .withCredential(auth)
                .withRegion(DcsRegion.valueOf("<YOUR REGION>"))
                .build();
        ScanClientsRequest request = new ScanClientsRequest();
        request.withInstanceId("{instance_id}");
        ScanClientsRequestBody body = new ScanClientsRequestBody();
        body.withCleanCache(true);
        body.withNodeId("8f7ee181-88e2-49b7-a4bf-81f18f93a135");
        request.withBody(body);
        try {
            ScanClientsResponse response = client.scanClients(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());
        }
    }
}
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# coding: utf-8

import os
from huaweicloudsdkcore.auth.credentials import BasicCredentials
from huaweicloudsdkdcs.v2.region.dcs_region import DcsRegion
from huaweicloudsdkcore.exceptions import exceptions
from huaweicloudsdkdcs.v2 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 = DcsClient.new_builder() \
        .with_credentials(credentials) \
        .with_region(DcsRegion.value_of("<YOUR REGION>")) \
        .build()

    try:
        request = ScanClientsRequest()
        request.instance_id = "{instance_id}"
        request.body = ScanClientsRequestBody(
            clean_cache=True,
            node_id="8f7ee181-88e2-49b7-a4bf-81f18f93a135"
        )
        response = client.scan_clients(request)
        print(response)
    except exceptions.ClientRequestException as e:
        print(e.status_code)
        print(e.request_id)
        print(e.error_code)
        print(e.error_msg)
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package main

import (
	"fmt"
	"github.com/huaweicloud/huaweicloud-sdk-go-v3/core/auth/basic"
    dcs "github.com/huaweicloud/huaweicloud-sdk-go-v3/services/dcs/v2"
	"github.com/huaweicloud/huaweicloud-sdk-go-v3/services/dcs/v2/model"
    region "github.com/huaweicloud/huaweicloud-sdk-go-v3/services/dcs/v2/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 := dcs.NewDcsClient(
        dcs.DcsClientBuilder().
            WithRegion(region.ValueOf("<YOUR REGION>")).
            WithCredential(auth).
            Build())

    request := &model.ScanClientsRequest{}
	request.InstanceId = "{instance_id}"
	cleanCacheScanClientsRequestBody:= true
	request.Body = &model.ScanClientsRequestBody{
		CleanCache: &cleanCacheScanClientsRequestBody,
		NodeId: "8f7ee181-88e2-49b7-a4bf-81f18f93a135",
	}
	response, err := client.ScanClients(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

200

Successful

400

Invalid request.

401

Invalid authentication information.

403

Access denied.

404

The requested resource could not be found.

500

Internal service error.

Error Codes

See Error Codes.