Help Center/ Cloud Trace Service/ API Reference/ V3 APIs (Recommended)/ Other APIs/ Querying All Operations Performed on a Cloud Service
Updated on 2025-12-31 GMT+08:00

Querying All Operations Performed on a Cloud Service

Function

This API is used to query all operations performed on a specified cloud service.

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

    cts:notification:listOperation

    List

    -

    -

    -

    -

URI

GET /v3/{project_id}/operations

Table 1 Path Parameters

Parameter

Mandatory

Type

Description

project_id

Yes

String

Project ID. For details, see Obtaining an Account ID and Project ID.

Table 2 Query Parameters

Parameter

Mandatory

Type

Description

service_type

No

String

Type of the cloud service on which operations are performed.

resource_type

No

String

Type of the resource on which operations are performed. If this parameter is used, service_type is mandatory.

Request Parameters

None

Response Parameters

Status code: 200

Table 3 Response body parameters

Parameter

Type

Description

operations

Array of ListOperation objects

All operation traces of the cloud service.

Table 4 ListOperation

Parameter

Type

Description

service_type

String

Type of the cloud service on which operations are performed.

resource_type

String

Type of the resource on which operations are performed.

operation_list

Array of strings

Array of operation names.

Status code: 400

Table 5 Response body parameters

Parameter

Type

Description

error_code

String

Error code. Format: CTS.XXX.

error_msg

String

Error message.

Status code: 401

Table 6 Response body parameters

Parameter

Type

Description

error_code

String

Error code. Format: CTS.XXX.

error_msg

String

Error message.

Status code: 403

Table 7 Response body parameters

Parameter

Type

Description

error_code

String

Error code. Format: CTS.XXX.

error_msg

String

Error message.

Status code: 404

Table 8 Response body parameters

Parameter

Type

Description

error_code

String

Error code. Format: CTS.XXX.

error_msg

String

Error message.

Status code: 500

Table 9 Response body parameters

Parameter

Type

Description

error_code

String

Error code. Format: CTS.XXX.

error_msg

String

Error message.

Status code: 503

Table 10 Response body parameters

Parameter

Type

Description

error_code

String

Error code. Format: CTS.XXX.

error_msg

String

Error message.

Example Requests

GET https://{endpoint}/v3/{project_id}/operations

Example Responses

Status code: 200

Request succeeded.

{
  "operations" : [ {
    "service_type" : "cts",
    "resource_type" : "tracker",
    "operation_list" : [ "updateTracker", "createTracker", "deleteTracker" ]
  }, {
    "service_type" : "cts",
    "resource_type" : "notification",
    "operation_list" : [ "updateNotification", "createNotification", "deleteNotification" ]
  } ]
}

SDK Sample Code

The SDK sample code is as follows.

Java

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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.cts.v3.region.CtsRegion;
import com.huaweicloud.sdk.cts.v3.*;
import com.huaweicloud.sdk.cts.v3.model.*;


public class ListOperationsSolution {

    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);

        CtsClient client = CtsClient.newBuilder()
                .withCredential(auth)
                .withRegion(CtsRegion.valueOf("<YOUR REGION>"))
                .build();
        ListOperationsRequest request = new ListOperationsRequest();
        try {
            ListOperationsResponse response = client.listOperations(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());
        }
    }
}

Python

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# coding: utf-8

import os
from huaweicloudsdkcore.auth.credentials import BasicCredentials
from huaweicloudsdkcts.v3.region.cts_region import CtsRegion
from huaweicloudsdkcore.exceptions import exceptions
from huaweicloudsdkcts.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 = CtsClient.new_builder() \
        .with_credentials(credentials) \
        .with_region(CtsRegion.value_of("<YOUR REGION>")) \
        .build()

    try:
        request = ListOperationsRequest()
        response = client.list_operations(request)
        print(response)
    except exceptions.ClientRequestException as e:
        print(e.status_code)
        print(e.request_id)
        print(e.error_code)
        print(e.error_msg)

Go

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package main

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

    request := &model.ListOperationsRequest{}
	response, err := client.ListOperations(request)
	if err == nil {
        fmt.Printf("%+v\n", response)
    } else {
        fmt.Println(err)
    }
}

More

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

Request succeeded.

400

The server failed to process the request.

401

The request is rejected due to authentication failure.

403

The server understood the request but refused to authorize it.

404

The requested resource does not exist.

500

Failed to complete the request because of an internal service error.

503

The requested service is invalid. The client should not repeat the request without modifications.

Error Codes

See Error Codes.