Updated on 2024-11-27 GMT+08:00

Executing a Workflow

Function

This API is used to execute a specified task.

Calling Method

For details, see Calling APIs.

URI

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

Table 1 Path Parameters

Parameter

Mandatory

Type

Description

project_id

Yes

String

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

workflow_id

Yes

String

Task ID, which is the workflow ID obtained from the workflow command list.

Request Parameters

Table 2 Request header parameters

Parameter

Mandatory

Type

Description

X-Auth-Token

Yes

String

User token obtained from IAM.

Content-Type

Yes

String

Content type, which is application/json.

Response Parameters

Status code: 200

Table 3 Response body parameters

Parameter

Type

Description

execution_id

String

Execution ID.

Status code: 401

Table 4 Response body parameters

Parameter

Type

Description

error_code

String

Response code.

error_msg

String

Error message.

http_code

Integer

HTTP response code.

Status code: 404

Table 5 Response body parameters

Parameter

Type

Description

error_code

String

Response code.

error_msg

String

Error message.

http_code

Integer

HTTP response code.

Status code: 500

Table 6 Response body parameters

Parameter

Type

Description

error_code

String

Response code.

error_msg

String

Error message.

http_code

Integer

HTTP response code.

Example Requests

Execute a task based on a specified workflow ID

https://{Endpoint}/v1/{project_id}/cms/workflow/{workflow_id}/executions

Example Responses

Status code: 200

OK: The task is successfully delivered.

{
  "execution_id" : "xxxxxxxx"
}

Status code: 401

Unauthorized: The authentication information is incorrect or invalid.

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

Status code: 404

Bad Request: Invalid request. The client should not repeat the request without modifications.

{
  "error_code" : "AOM.31001306",
  "error_msg" : "workflow not exist.",
  "http_code" : 404
}

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" : "execution 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 ExecuteWorkflowSolution {

    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);

        AomClient client = AomClient.newBuilder()
                .withCredential(auth)
                .withRegion(AomRegion.valueOf("<YOUR REGION>"))
                .build();
        ExecuteWorkflowRequest request = new ExecuteWorkflowRequest();
        request.withWorkflowId("{workflow_id}");
        try {
            ExecuteWorkflowResponse response = client.executeWorkflow(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"]
    projectId = "{project_id}"

    credentials = BasicCredentials(ak, sk, projectId)

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

    try:
        request = ExecuteWorkflowRequest()
        request.workflow_id = "{workflow_id}"
        response = client.execute_workflow(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")
    projectId := "{project_id}"

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

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

    request := &model.ExecuteWorkflowRequest{}
	request.WorkflowId = "{workflow_id}"
	response, err := client.ExecuteWorkflow(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 is successfully delivered.

401

Unauthorized: The authentication information is incorrect or invalid.

404

Bad Request: Invalid request. The client should not repeat the request without modifications.

500

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

Error Codes

See Error Codes.