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本文介绍如何通过工作流 ASW 编排云函数，快速完成订单数据的处理。

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工作原理

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  1. 工作流调用函数获取一定时间段内的订单数据，对数据进行预处理。
    2. \n
  2. 将预处理的数据交给 Map 迭代任务处理：每个订单进行数据处理后，分别写到不同的数据库表中，或者绘制成图表展示。
    3. \n
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操作步骤

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创建工作流程需要首先创建一个状态机，通过编排状态机的不同元件，改变状态机结构，从而实现用户自定义的功能集合。

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简单三步即可完成：创建云函数 → 创建工作流 → 运行状态机

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Step 1：创建云函数

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创建 GetOrder 函数

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  1. 登录 云函数控制台，单击左侧导航栏的【函数服务】。
    2. \n
  2. 在主界面上方函数服务区域选择广州，并单击【新建】，进入函数创建流程。
    3. \n
  3. \n

    在新建函数页面，基本信息中填写以下信息：

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    4. \n
  4. 在函数配置页面中的 Cloud Studio 窗格中，删除原有代码，复制如下所示的代码：
    5. \n
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   'use strict';\n   exports.main_handler = async (event, context) => {\n       console.log("this is get order function");\n       # 您可以通过api请求获取真实的订单数据，样例中数据方便模拟工作流执行\n          var orderlist = [\n           {\n               "orderId":"202012200001",\n               "goodsId":"1004",\n               "goodsName":"橘子#1004",\n               "unit":"件",\n               "specific":"5斤一箱",\n               "linePrice":100,\n               "salePrice":90,\n               "costPrice":80,\n               "number":30,\n   \t\t\t"isVoucher":1,\n   \t\t\t"voucherPrice":2,\n   \t\t\t"voucherId":"3dr55678hj",\n   \t\t\t"isDiscount":1,\n   \t\t\t"discountPrice":3,\n   \t\t\t"carriage": 8,\n   \t\t\t"receiver":"susu",\n   \t\t\t"phone":"18633567898",\n   \t\t\t"address":"深圳市南山区腾讯大厦20楼",\n   \t\t\t"createTime":"2020-12-20 10:00:00",\n   \t\t\t"payTime":"2020-12-20 11:00:00",\n   \t\t\t"payMethod":1, \n   \t\t\t"payOrder":"202012201100003940",\n   \t\t\t"orderStatus":3,\n   \t\t\t"deliveryTime":"2020-12-21 11:00:00",\n   \t\t\t"finishTime":"2020-12-25 11:00:00",\n   \t\t\t"deliveryOrder":"ZT12345789d786",\n   \t\t\t"isReturn":1,\n   \t\t\t"returnId":"2020122600012",\n               "returnNumber":2,\t\n           },\n   \t\t {\n               "orderId":"202012200001",\n               "goodsId":"2001",\n               "goodsName":"梨子#2001",\n               "unit":"件",\n               "specific":"6斤一箱",\n               "linePrice":150,\n               "salePrice":120,\n               "costPrice":90,\n               "number":20,\n   \t\t\t"isVoucher":1,\n   \t\t\t"voucherPrice":3,\n   \t\t\t"voucherId":"3dr55678hj",\n   \t\t\t"isDiscount":1,\n   \t\t\t"discountPrice":5,\n   \t\t\t"carriage": 0,\n   \t\t\t"receiver":"susu",\n   \t\t\t"phone":"18633567898",\n   \t\t\t"address":"深圳市南山区腾讯大厦20楼",\n   \t\t\t"createTime":"2020-12-20 10:00:00",\n   \t\t\t"payTime":"2020-12-20 11:00:00",\n   \t\t\t"payMethod":1, \n   \t\t\t"payOrder":"202012201100003940",\n   \t\t\t"orderStatus":3,\n   \t\t\t"deliveryTime":"2020-12-21 11:00:00",\n   \t\t\t"finishTime":"2020-12-25 11:00:00",\n   \t\t\t"deliveryOrder":"ZT12345789d786",\n   \t\t\t"isReturn":0,\n   \t\t\t"returnId":"",\n               "returnNumber":0,\t\t\n           },\n   \t\t{\n               "orderId":"202012200001",\n               "goodsId":"3005",\n               "goodsName":"香蕉#3005",\n               "unit":"件",\n               "specific":"10斤一箱",\n               "linePrice":180,\n               "salePrice":150,\n               "costPrice":98,\n               "number":6,\n   \t\t\t"isVoucher":1,\n   \t\t\t"voucherPrice":8,\n   \t\t\t"voucherId":"3dr55678hj",\n   \t\t\t"isDiscount":1,\n   \t\t\t"discountPrice":20,\n   \t\t\t"carriage": 0,\n   \t\t\t"receiver":"susu",\n   \t\t\t"phone":"18633567898",\n   \t\t\t"address":"深圳市南山区腾讯大厦20楼",\n   \t\t\t"createTime":"2020-12-20 10:00:00",\n   \t\t\t"payTime":"2020-12-20 11:00:00",\n   \t\t\t"payMethod":1, \n   \t\t\t"payOrder":"202012201100003940",\n   \t\t\t"orderStatus":3,\n   \t\t\t"deliveryTime":"2020-12-21 11:00:00",\n   \t\t\t"finishTime":"2020-12-25 11:00:00",\n   \t\t\t"deliveryOrder":"ZT12345789d786",\n   \t\t\t"isReturn":1,\n   \t\t\t"returnId":"2020122600013",\n               "returnNumber":3,\t\t\n           }\n       ];\n       \n       return {"orderList":orderlist};\n   };
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  1. 单击【保存】，则成功创建了云函数
    2. \n
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创建 ProcessOrder 函数

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参考【创建 GetOrder 函数】的方式，创建 ProcessOrder 函数，代码如下：

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'use strict';\nexports.main_handler = async (event, context) => {\n    console.log("this is processOrder function");\n    var order = event;\n    #数据处理\n    var income = order["salePrice"]-order["costPrice"];\n    var goodsInfo = {"goodsId":order["goodId"],"goodsName":order["goodsName"],"number":order["number"]};\n    var incomeInfo = {"goodsId":order["goodId"],"goodsName":order["goodsName"],"number":order["number"],"income":income};\n   return {\n        "goodsInfo":goodsInfo,\n        "incomeInfo":incomeInfo,\n        "salesInfo":salesInfo\n    };\n}
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创建 GoodsSold 函数

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参考【创建 GetOrder 函数】的方式，创建 GoodsSold 函数，代码如下：

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'use strict';\nexports.main_handler = async (event, context) => {\n    console.log("this is goodsSold function");\n    //一些写入数据库或者图表展示操作\n    console.log(event);\n    return "GoodsSold success";\n};
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创建 Income 函数

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参考【创建 GetOrder 函数】的方式，创建 Income 函数，代码如下：

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'use strict';\nexports.main_handler = async (event, context) => {\n    console.log("this is income function");\n    //一些写入数据库或者图表展示操作\n    console.log(event);\n    return "Income success";\n};
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创建 SalesReturn 函数

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参考【创建 GetOrder 函数】的方式，创建 SalesReturn 函数，代码如下：

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'use strict';\nexports.main_handler = async (event, context) => {\n    console.log("this is salesReturn function");\n    //一些写入数据库或者图表展示操作\n    console.log(event);\n    return "SalesReturn success";\n};
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Step 2：创建工作流

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  1. 登录 应用与编排服务流控制台。
    2. \n
  2. 在状态机页面，单击【新建】，进入创建工作流页面中，选择使用【代码创建】：
    3. \n
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  1. 直接在代码编辑框中粘贴以下 TCSL 代码：
    2. \n
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   {\n     "Comment": "订单处理",\n     "StartAt": "GetOrder",\n     "States": {\n       "GetOrder": {\n         "Type": "Task",\n         "Comment": "拉取数据",\n         "Resource": "qrn:qcs:asw:ap-guangzhou:12345678:sdk:json:qcloud:scf:Invoke/GetOrder",\n         "Next": "MapProcess"\n       },\n       "MapProcess": {\n         "Type": "Map",\n         "ItemsPath": "$.orderList",\n         "MaxConcurrency": 6,\n         "Iterator": {\n           "StartAt": "ProcessOrder",\n           "States": {\n             "ProcessOrder": {\n               "Type": "Task",\n               "Resource": "qrn:qcs:asw:ap-guangzhou:12345678:sdk:json:qcloud:scf:Invoke/ProcessOrder",\n               "Next": "ParallelDataProcess"\n             },\n             "ParallelDataProcess": {\n               "Type": "Parallel",\n               "End": true,\n               "Branches": [\n                 {\n                   "StartAt": "GoodsSold",\n                   "States": {\n                     "GoodsSold": {\n                       "InputPath": "$.goodsInfo",\n                       "Type": "Task",\n                       "Resource": "qrn:qcs:asw:ap-guangzhou:12345678:sdk:json:qcloud:scf:Invoke/GoodsSold",\n                       "End": true\n                     }\n                   }\n                 },\n                 {\n                   "StartAt": "Income",\n                   "States": {\n                     "Income": {\n                       "InputPath": "$.incomeInfo",\n                       "Type": "Task",\n                       "Resource": "qrn:qcs:asw:ap-guangzhou:12345678:sdk:json:qcloud:scf:Invoke/Income",\n                       "End": true\n                     }\n                   }\n                 },\n                 {\n                   "StartAt": "SalesReturn",\n                   "States": {\n                     "SalesReturn": {\n                       "InputPath": "$.salesInfo",\n                       "Type": "Task",\n                       "Resource": "qrn:qcs:asw:ap-guangzhou:12345678:sdk:json:qcloud:scf:Invoke/SalesReturn",\n                       "End": true\n                     }\n                   }\n                 }\n               ]\n             }\n           }\n         },\n         "End": true\n       }\n     }\n   }
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    \n
  1. 单击右上角【下一步】，进入保存界面，输入状态机名称，运行角色选择【新建角色】，类型选择【标准状态机】，单击右上角【完成】，在状态机列表页可以看到创建好的状态机。
    2. \n
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使用已有角色需要先创建角色，并给角色授权相关策略，操作详情参考 运行角色。

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Step 3：运行状态机

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状态机创建完成后，您可以在登录后的主页面查看创建好的状态机。

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  1. 单击需要运行的状态机的【名称】，进入状态机。
    2. \n
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  1. 您可以在界面中看到状态机的基本信息。单击【工作流执行】下的【开始执行】 。
    2. \n
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  1. 在弹出的“输入”窗口中，以 JSON 格式输入状态机需要的输入内容。例如：
    2. \n
\n\n \n 复制代码\n \n \n
{\"comment\": \"invoke workflow\"}
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  1. 单击【确定】，完成状态执行后，可以在详情页查看执行结果：
    2. \n
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  1. 滑动至页面最下方，在【执行历史记录】条目下，您可以查看子节点的运行情况。
    2. \n
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上述步骤介绍了一个订单数据处理场景的基本工作流流程。

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真实的业务场景中每个 Task 节点会涉及配置一些相关参数信息，例如做参数传递、异常重试和错误捕获处理等，更多详情参考 状态机语言。

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申请试用 ASW

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ASW 目前处于公测阶段，公测阶段免费提供服务。欢迎提出产品改进建议，反馈采纳后即可获得腾讯萌新短鹅公仔！

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