Azure Logic App (1) 使用Logic App通过Azure Graph API发送邮件

　　《Windows Azure Platform 系列文章目录》

　　本文介绍如何使用Azure Logic App，通过Azure Graph发送邮件。

　　首先我们需要准备：

　　1.一个有效的Microsoft 365订阅

　　2.一个有效的Azure订阅

　　1.首先我们需要准备应用注册，具体创建过程可以参考：Azure AD (7) 应用程序和服务主体 (App and Service Principal)

　　记录好应用ID， 应用秘钥和目录ID

　　2.然后针对上面创建成功的应用注册，需要设置Microsoft Graph里的Mail Send权限，设置类型为Application Permission。如下图：

　　

　　3.创建1个新的Azure Logic App，我们这里设置为Consumption Plan (按消耗量计费)，步骤略

　　4.我们创建Logic App的设计思路如下所示：

　　(1)用户在调用Logic App的时候，需要传入三个参数：邮件标题，邮件正文、邮件收件人

　　(2)需要在Log App里保存三个值：应用ID， 应用秘钥和目录ID

　　(3)首先通过应用ID， 应用秘钥和目录ID，访问Azure AD获得Access Token

　　(4)通过Azure AD Access Token，调用Azure Graph API，推送邮件

　　4.设置Log App Designer，如下图：

　　

　　

　　5.When a HTTP request is received配置入下:

　　主要传入三个参数：

　　mailbody是邮件正文。

　　mailreceiver是收件人

　　mailsubject是邮件标题

　　

　　6.HTTP Get Bearer Token配置入下：

　　

　　7.Parse JSON的配置如下：

　　

　　8.发送邮件的逻辑如下：

　　请注意修改下面的URI地址，在users后面的参数修改为具有发送邮件权限的Microsoft 365邮箱地址

　　

　　9.Azure Logic App的Code文件如下：

{
    "definition": {
        "$schema": "https://schema.management.azure.com/providers/Microsoft.Logic/schemas/2016-06-01/workflowdefinition.json#",
        "actions": {
            "HTTP": {
                "inputs": {
                    "body": {
                        "message": {
                            "body": {
                                "content": "@variables('mailBody')",
                                "contentType": "Text"
                            },
                            "subject": "@variables('mailSubject')",
                            "toRecipients": [
                                {
                                    "emailAddress": {
                                        "address": "@variables('mailReceiver')"
                                    }
                                }
                            ]
                        },
                        "saveToSendItems": "false"
                    },
                    "headers": {
                        "Authorization": "@{concat('Bearer ', body('Parse_JSON')?['access_token'])}",
                        "Content-Type": "application/json"
                    },
                    "method": "POST",
                    "uri": "https://microsoftgraph.chinacloudapi.cn/v1.0/users/admin@leizha01.partner.onmschina.cn/sendMail"
                },
                "runAfter": {
                    "Parse_JSON": [
                        "Succeeded"
                    ]
                },
                "type": "Http"
            },
            "HTTP_Get_Bearer_Token": {
                "inputs": {
                    "body": "client_id=@{variables('clientId')}&scope=https://microsoftgraph.chinacloudapi.cn/.default&client_secret=@{variables('clientSecret')}&grant_type=client_credentials",
                    "headers": {
                        "Content-Type": "application/x-www-form-urlencoded"
                    },
                    "method": "POST",
                    "uri": "https://login.chinacloudapi.cn/@{variables('tenantId')}/oauth2/v2.0/token"
                },
                "runAfter": {
                    "Initialize_mail_Receiver": [
                        "Succeeded"
                    ]
                },
                "type": "Http"
            },
            "Initialize_clientId": {
                "inputs": {
                    "variables": [
                        {
                            "name": "clientId",
                            "type": "string",
                            "value": "这里是Client ID"
                        }
                    ]
                },
                "runAfter": {},
                "type": "InitializeVariable"
            },
            "Initialize_clientSecret": {
                "inputs": {
                    "variables": [
                        {
                            "name": "clientSecret",
                            "type": "string",
                            "value": "这里是Client秘钥"
                        }
                    ]
                },
                "runAfter": {
                    "Initialize_clientId": [
                        "Succeeded"
                    ]
                },
                "type": "InitializeVariable"
            },
            "Initialize_mail_Body": {
                "inputs": {
                    "variables": [
                        {
                            "name": "mailBody",
                            "type": "string",
                            "value": "@triggerBody()?['mailbody']"
                        }
                    ]
                },
                "runAfter": {
                    "Initialize_mail_Subject": [
                        "Succeeded"
                    ]
                },
                "type": "InitializeVariable"
            },
            "Initialize_mail_Receiver": {
                "inputs": {
                    "variables": [
                        {
                            "name": "mailReceiver",
                            "type": "string",
                            "value": "@triggerBody()?['mailreceiver']"
                        }
                    ]
                },
                "runAfter": {
                    "Initialize_mail_Body": [
                        "Succeeded"
                    ]
                },
                "type": "InitializeVariable"
            },
            "Initialize_mail_Subject": {
                "inputs": {
                    "variables": [
                        {
                            "name": "mailsubject",
                            "type": "string",
                            "value": "@{triggerBody()?['mailsubject']}"
                        }
                    ]
                },
                "runAfter": {
                    "Initialize_tentantId": [
                        "Succeeded"
                    ]
                },
                "type": "InitializeVariable"
            },
            "Initialize_tentantId": {
                "inputs": {
                    "variables": [
                        {
                            "name": "tenantId",
                            "type": "string",
                            "value": "这里是tenandId"
                        }
                    ]
                },
                "runAfter": {
                    "Initialize_clientSecret": [
                        "Succeeded"
                    ]
                },
                "type": "InitializeVariable"
            },
            "Parse_JSON": {
                "inputs": {
                    "content": "@body('HTTP_Get_Bearer_Token')",
                    "schema": {
                        "properties": {
                            "access_token": {
                                "type": "string"
                            },
                            "expires_in": {
                                "type": "integer"
                            },
                            "ext_expires_in": {
                                "type": "integer"
                            },
                            "token_type": {
                                "type": "string"
                            }
                        },
                        "type": "object"
                    }
                },
                "runAfter": {
                    "HTTP_Get_Bearer_Token": [
                        "Succeeded"
                    ]
                },
                "type": "ParseJson"
            }
        },
        "contentVersion": "1.0.0.0",
        "outputs": {},
        "parameters": {},
        "triggers": {
            "manual": {
                "inputs": {
                    "schema": {
                        "mailbody": {
                            "type": "string"
                        },
                        "mailreceiver": {
                            "type": "string"
                        },
                        "mailsubject": {
                            "type": "string"
                        }
                    }
                },
                "kind": "Http",
                "type": "Request"
            }
        }
    },
    "parameters": {}
}

　　10.配置成功后，我们通过POSTMAN进行调用：

　　

　　

　　11.调用成功后，我们就可以收到Logic App发送的邮件

　　

　　12.如果我们需要通过Azure Automation调用Logic App发送邮件，可以使用下面的PowerShell脚本：

$Url = "这里输入Logic App的URL地址"


$body = @{
    mailbody='This is Mail Body 2022-09-26'
    mailsubject='This is Mail Subject 2022-09-26'
    mailreceiver='leizha@microsoft.com'
    }
    
Invoke-WebRequest -Method POST -Uri $url -Body ($body|ConvertTo-Json) -UseBasicParsing -ContentType 'application/json'