ABP.IO WEB應用程式框架 SendGrid

2022-11-04

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ABP
2022-11-07

筆記下使用 abp 內建 mail sender 發送到 sendgrid smtp 的方式

結論

IEmailSender.SendAsync

using System.Threading.Tasks;
using Volo.Abp.DependencyInjection;
using Volo.Abp.Emailing;

namespace MyProject
{
    public class MyService : ITransientDependency
    {
        private readonly IEmailSender _emailSender;

        public MyService(IEmailSender emailSender)
        {
            _emailSender = emailSender;
        }

        public async Task DoItAsync()
        {
            await _emailSender.SendAsync(
                "target@domain.com",     // target email address
                "Email subject",         // subject
                "This is email body..."  // email body
            );
        }
    }
}

P.S. IEmailSender 也有提供 QueueAsync 功能

appsetings.json

"Settings": {
  "Abp.Mailing.DefaultFromAddress": "noreply@mydomain.com",
  "Abp.Mailing.DefaultFromDisplayName": "測試信件服務",
  "Abp.Mailing.Smtp.Host": "smtp.sendgrid.net",
  "Abp.Mailing.Smtp.Port": "587",
  "Abp.Mailing.Smtp.UserName": "apikey",
  "Abp.Mailing.Smtp.Password": "StringEncryption/DefaultPassPhrase/ApikKey=",
  "Abp.Mailing.Smtp.EnableSsl": "true",
  "Abp.Mailing.Smtp.UseDefaultCredentials": "false"
}

使用 ISettingEncryptionService 加密

public class EmailSettingProvider : SettingDefinitionProvider
{
    private readonly ISettingEncryptionService encryptionService;

    public EmailSettingProvider(ISettingEncryptionService encryptionService)
    {
        this.encryptionService = encryptionService;
    }

    public override void Define(ISettingDefinitionContext context)
    {
        var passSetting = context.GetOrNull("Abp.Mailing.Smtp.Password");
        if(passSetting!=null)
        {
            string debug = encryptionService.Encrypt(passSetting,"1q2w3e$R");
        }
    }
}

將 SendGrid API KEY 取代 "1q2w3e$R"
中斷點下在 debug 取得加密後的 string
回填 "Abp.Mailing.Smtp.Password"
刪除此類別 (只是為了取得加密後的 api key)

使用 SettingManager 加密



public class TemplateReplaceDomainModule : AbpModule
{
    public override void OnApplicationInitialization(
        ApplicationInitializationContext context)
    {
        var settingManager = 
            context.ServiceProvider.GetService<SettingManager>();
        //encrypts the password on set and decrypts on get
        settingManager.SetGlobalAsync(
            EmailSettingNames.Smtp.Password, "your_password");
    }
}

輸入密碼到 your_password
到 DB 就可以到 AbpSetting 看到加密後的密碼
刪除上面代碼 (只是為了取得加密後的 api key)

重點

"Abp.Mailing.Smtp.UserName"
- 保持 apikey 這六個英文字即可
"Abp.Mailing.Smtp.Password"
- 從 SendGrid 生成 API KEY
- 使用 ABP 的 ISettingEncryptionService 加密
- 將加密後的字串填入此設定值
- appsettings.json:StringEncryption:DefaultPassPhrase 需一致
"Abp.Mailing.Smtp.EnableSsl": "true"
"Abp.Mailing.Smtp.UseDefaultCredentials": "false"
"Abp.Mailing.Smtp.Port": "587"
- Azure App Service 中只開放 587 port