Updated on 2024-06-28 GMT+08:00

Operating a Paused Task

Function

This API is used to restart, skip, and resume a task upon failure. The corresponding result will be returned.

Calling Method

For details, see Calling APIs.

URI

POST /v1/{project_id}/cms/workflow/{workflow_id}/executions/{execution_id}/operation

Table 1 Path Parameters

Parameter

Mandatory

Type

Description

project_id

Yes

String

Project ID obtained from IAM. Generally, a project ID contains 32 characters.

Minimum: 32

Maximum: 32

workflow_id

Yes

String

Workflow ID, which is unique and generated based on project_id and workflow_name.

Minimum: 1

Maximum: 64

execution_id

Yes

String

Workflow execution ID.

Minimum: 1

Maximum: 64

Table 2 Query Parameters

Parameter

Mandatory

Type

Description

action

Yes

String

Operation to be performed on the current node. restart: Restart the failed node. skip: Skip the failed node and go to the next node. continue: Go to the next node through the pause node.

Minimum: 1

Maximum: 10

Enumeration values:

  • restart

  • skip

  • continue

node_id

Yes

String

ID of the current node.

Minimum: 1

Maximum: 64

Request Parameters

Table 3 Request header parameters

Parameter

Mandatory

Type

Description

X-Auth-Token

Yes

String

User token obtained from IAM.

Minimum: 1

Maximum: 40960

Content-Type

Yes

String

Content type, which is application/json.

Minimum: 1

Maximum: 32

Response Parameters

Status code: 200

Table 4 Response body parameters

Parameter

Type

Description

result

Object

Response body

Status code: 401

Table 5 Response body parameters

Parameter

Type

Description

error_code

String

Response code.

Minimum: 1

Maximum: 64

error_msg

String

Error message.

Minimum: 1

Maximum: 1024

http_code

Integer

HTTP response code.

Minimum: 0

Maximum: 999

Status code: 500

Table 6 Response body parameters

Parameter

Type

Description

error_code

String

Response code.

Minimum: 1

Maximum: 64

error_msg

String

Error message.

Minimum: 1

Maximum: 1024

http_code

Integer

HTTP response code.

Minimum: 0

Maximum: 999

Example Requests

Specify the skip action for the task. skip: Skip the task. restart: Execute the task again. continue: Continue to execute the task.

https://{Endpoint}/v1/{project_id}/cms/workflow/{workflow_id}/executions/{execution_id}/operation?action=skip&node_id=xxxxxxx

Example Responses

Status code: 200

OK: The task status has changed.

{
  "result" : "success"
}

Status code: 401

Unauthorized: The authentication information is incorrect or invalid.

{
  "error_code" : "AOM.31009004",
  "error_msg" : "auth failed.",
  "http_code" : "401"
}

Status code: 500

Internal Server Error: The server is able to receive the request but unable to understand the request.

{
  "error_code" : "AOM.31001405",
  "error_msg" : "internal server error.",
  "http_code" : "500"
}

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.aom.v1.region.AomRegion;
import com.huaweicloud.sdk.aom.v1.*;
import com.huaweicloud.sdk.aom.v1.model.*;


public class StartPausingWorkflowExecutionsSolution {

    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");

        ICredential auth = new BasicCredentials()
                .withAk(ak)
                .withSk(sk);

        AomClient client = AomClient.newBuilder()
                .withCredential(auth)
                .withRegion(AomRegion.valueOf("<YOUR REGION>"))
                .build();
        StartPausingWorkflowExecutionsRequest request = new StartPausingWorkflowExecutionsRequest();
        request.withAction(StartPausingWorkflowExecutionsRequest.ActionEnum.fromValue("<action>"));
        request.withNodeId("<node_id>");
        try {
            StartPausingWorkflowExecutionsResponse response = client.startPausingWorkflowExecutions(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 huaweicloudsdkaom.v1.region.aom_region import AomRegion
from huaweicloudsdkcore.exceptions import exceptions
from huaweicloudsdkaom.v1 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"]

    credentials = BasicCredentials(ak, sk)

    client = AomClient.new_builder() \
        .with_credentials(credentials) \
        .with_region(AomRegion.value_of("<YOUR REGION>")) \
        .build()

    try:
        request = StartPausingWorkflowExecutionsRequest()
        request.action = "<action>"
        request.node_id = "<node_id>"
        response = client.start_pausing_workflow_executions(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"
    aom "github.com/huaweicloud/huaweicloud-sdk-go-v3/services/aom/v1"
	"github.com/huaweicloud/huaweicloud-sdk-go-v3/services/aom/v1/model"
    region "github.com/huaweicloud/huaweicloud-sdk-go-v3/services/aom/v1/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")

    auth := basic.NewCredentialsBuilder().
        WithAk(ak).
        WithSk(sk).
        Build()

    client := aom.NewAomClient(
        aom.AomClientBuilder().
            WithRegion(region.ValueOf("<YOUR REGION>")).
            WithCredential(auth).
            Build())

    request := &model.StartPausingWorkflowExecutionsRequest{}
	request.Action = model.GetStartPausingWorkflowExecutionsRequestActionEnum().<ACTION>
	request.NodeId = "<node_id>"
	response, err := client.StartPausingWorkflowExecutions(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

OK: The task status has changed.

401

Unauthorized: The authentication information is incorrect or invalid.

500

Internal Server Error: The server is able to receive the request but unable to understand the request.

Error Codes

See Error Codes.