解析Azure Logic Apps中的文本

Question

我想创建Azure Logic App,它将不断请求Internet上的特定网站并解析收到的HTML.

我已经创建了Logic App并设置了间隔和HTTP请求操作.

我应该选择哪种操作作为HTML代码上简单正则表达式操作的下一步？

我想到的是创建Azure功能,它将完成这项工作,但我想知道是否有任何其他解决方案,更适合此类任务.

我希望它尽可能简单.

---

编辑:

刚发现一些很酷的功能.Logic Apps包含一些基本类型的基本表达式.

不幸的是它没有任何regex或string.contains.

现在,我将尝试使用Azure Functions.

Answer 1

我成功地使用工作流定义语言和 Azure 提供的构建块解决了我的问题。

Azure Function 的想法并没有那么糟糕，并且非常适合任何更复杂的情况，但正如我提到的，我希望它尽可能简单，所以就是这样。

这就是我的流程现在的样子。

为了完整起见，这里是 JSON 格式的流程

{
    "$connections": {
        "value": {
            "wunderlist": {
                "connectionId": "/subscriptions/.../providers/Microsoft.Web/connections/wunderlist",
                "connectionName": "wunderlist",
                "id": "/subscriptions/.../providers/Microsoft.Web/locations/northeurope/managedApis/wunderlist"
            }
        }
    },
    "definition": {
        "$schema": "https://schema.management.azure.com/providers/Microsoft.Logic/schemas/2016-06-01/workflowdefinition.json#",
        "actions": {
            "Condition": {
                "actions": {
                    "Create_a_task": {
                        "inputs": {
                            "body": {
                                "completed": false,
                                "list_id": 000000000,
                                "starred": true,
                                "title": "@{variables('today date')}"
                            },
                            "host": {
                                "connection": {
                                    "name": "@parameters('$connections')['wunderlist']['connectionId']"
                                }
                            },
                            "method": "post",
                            "path": "/tasks",
                            "retryPolicy": {
                                "type": "none"
                            }
                        },
                        "limit": {
                            "timeout": "PT20S"
                        },
                        "runAfter": {},
                        "type": "ApiConnection"
                    },
                    "Set_a_reminder": {
                        "inputs": {
                            "body": {
                                "date": "@{addHours(utcNow(), 3)}",
                                "list_id": 000000,
                                "task_id": "@body('Create_a_task')?.id"
                            },
                            "host": {
                                "connection": {
                                    "name": "@parameters('$connections')['wunderlist']['connectionId']"
                                }
                            },
                            "method": "post",
                            "path": "/reminders",
                            "retryPolicy": {
                                "type": "none"
                            }
                        },
                        "limit": {
                            "timeout": "PT20S"
                        },
                        "runAfter": {
                            "Create_a_task": [
                                "Succeeded"
                            ]
                        },
                        "type": "ApiConnection"
                    }
                },
                "expression": "@contains(body('HTTP'), variables('today date'))",
                "runAfter": {
                    "Initialize_variable": [
                        "Succeeded"
                    ]
                },
                "type": "If"
            },
            "HTTP": {
                "inputs": {
                    "method": "GET",
                    "uri": "..."
                },
                "runAfter": {},
                "type": "Http"
            },
            "Initialize_variable": {
                "inputs": {
                    "variables": [
                        {
                            "name": "today date",
                            "type": "String",
                            "value": "@{utcNow('yyyy/MM/dd')}"
                        }
                    ]
                },
                "runAfter": {
                    "HTTP": [
                        "Succeeded"
                    ]
                },
                "type": "InitializeVariable"
            }
        },
        "contentVersion": "1.0.0.0",
        "outputs": {},
        "parameters": {
            "$connections": {
                "defaultValue": {},
                "type": "Object"
            }
        },
        "triggers": {
            "Recurrence": {
                "recurrence": {
                    "frequency": "Day",
                    "interval": 1,
                    "startTime": "2017-08-01T23:55:00Z",
                    "timeZone": "UTC"
                },
                "type": "Recurrence"
            }
        }
    }
}