更新时间:2024-03-21 GMT+08:00
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异步执行工作流

功能介绍

以异步执行方式启动工作流,暂不支持国际站局点调用

调用方法

请参见如何调用API

URI

POST /v2/{project_id}/fgs/workflows/{workflow_id}/executions

表1 路径参数

参数

是否必选

参数类型

描述

project_id

String

项目ID,获取方式请参见获取项目ID

最小长度:1

最大长度:64

workflow_id

String

工作流定义ID

最小长度:1

最大长度:512

请求参数

表2 请求Header参数

参数

是否必选

参数类型

描述

X-Create-Time

String

workflowRun task create time

X-WorkflowRun-ID

String

workflowRun id

X-WorkflowRun-MergeFnParameters

String

Combines the output of the previous node with the input of the next node into an input.

表3 请求Body参数

参数

是否必选

参数类型

描述

headers

Object

执行时需要的Header

input

Object

定义执行时的入参,支持使用JSONPATH进行映射,以及指定默认值

响应参数

状态码: 200

表4 响应Body参数

参数

参数类型

描述

execution_id

String

错误码

最小长度:1

最大长度:64

状态码: 400

表5 响应Body参数

参数

参数类型

描述

error_code

String

错误码

最小长度:1

最大长度:36

error_msg

String

错误描述

最小长度:2

最大长度:512

状态码: 404

表6 响应Body参数

参数

参数类型

描述

error_code

String

错误码

最小长度:1

最大长度:36

error_msg

String

错误描述

最小长度:2

最大长度:512

状态码: 500

表7 响应Body参数

参数

参数类型

描述

error_code

String

错误码

最小长度:1

最大长度:36

error_msg

String

错误描述

最小长度:2

最大长度:512

请求示例

开始执行工作流。

POST /v2/{project_id}/fgs/workflows/{workflow_id}/executions

{
  "headers" : {
    "tenantId" : "user1"
  },
  "input" : {
    "arg1" : "argument_1",
    "arg2" : "argument_2"
  }
}

响应示例

状态码: 200

Success

{
  "execution_id" : "48aff955-ea10-4ffd-b426-190bc192dc14"
}

SDK代码示例

SDK代码示例如下。

开始执行工作流。

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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.functiongraph.v2.region.FunctionGraphRegion;
import com.huaweicloud.sdk.functiongraph.v2.*;
import com.huaweicloud.sdk.functiongraph.v2.model.*;


public class StartWorkflowExecutionSolution {

    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);

        FunctionGraphClient client = FunctionGraphClient.newBuilder()
                .withCredential(auth)
                .withRegion(FunctionGraphRegion.valueOf("<YOUR REGION>"))
                .build();
        StartWorkflowExecutionRequest request = new StartWorkflowExecutionRequest();
        FlowExecuteBody body = new FlowExecuteBody();
        body.withInput("{\"arg2\":\"argument_2\",\"arg1\":\"argument_1\"}");
        body.withHeaders("{\"tenantId\":\"user1\"}");
        request.withBody(body);
        try {
            StartWorkflowExecutionResponse response = client.startWorkflowExecution(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());
        }
    }
}

开始执行工作流。

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# coding: utf-8

from huaweicloudsdkcore.auth.credentials import BasicCredentials
from huaweicloudsdkfunctiongraph.v2.region.functiongraph_region import FunctionGraphRegion
from huaweicloudsdkcore.exceptions import exceptions
from huaweicloudsdkfunctiongraph.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 = __import__('os').getenv("CLOUD_SDK_AK")
    sk = __import__('os').getenv("CLOUD_SDK_SK")

    credentials = BasicCredentials(ak, sk) \

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

    try:
        request = StartWorkflowExecutionRequest()
        request.body = FlowExecuteBody(
            input="{\"arg2\":\"argument_2\",\"arg1\":\"argument_1\"}",
            headers="{\"tenantId\":\"user1\"}"
        )
        response = client.start_workflow_execution(request)
        print(response)
    except exceptions.ClientRequestException as e:
        print(e.status_code)
        print(e.request_id)
        print(e.error_code)
        print(e.error_msg)

开始执行工作流。

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package main

import (
	"fmt"
	"github.com/huaweicloud/huaweicloud-sdk-go-v3/core/auth/basic"
    functiongraph "github.com/huaweicloud/huaweicloud-sdk-go-v3/services/functiongraph/v2"
	"github.com/huaweicloud/huaweicloud-sdk-go-v3/services/functiongraph/v2/model"
    region "github.com/huaweicloud/huaweicloud-sdk-go-v3/services/functiongraph/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")

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

    client := functiongraph.NewFunctionGraphClient(
        functiongraph.FunctionGraphClientBuilder().
            WithRegion(region.ValueOf("<YOUR REGION>")).
            WithCredential(auth).
            Build())

    request := &model.StartWorkflowExecutionRequest{}
	var inputFlowExecuteBody interface{} = "{\"arg2\":\"argument_2\",\"arg1\":\"argument_1\"}"
	var headersFlowExecuteBody interface{} = "{\"tenantId\":\"user1\"}"
	request.Body = &model.FlowExecuteBody{
		Input: &inputFlowExecuteBody,
		Headers: &headersFlowExecuteBody,
	}
	response, err := client.StartWorkflowExecution(request)
	if err == nil {
        fmt.Printf("%+v\n", response)
    } else {
        fmt.Println(err)
    }
}

更多编程语言的SDK代码示例,请参见API Explorer的代码示例页签,可生成自动对应的SDK代码示例。

状态码

状态码

描述

200

Success

400

Bad Request

404

Bad Request

500

Internal Server Error

错误码

请参见错误码

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