### Install Jusoft.DingtalkStream via NuGet

Source: https://github.com/yancy1028/jusoft.dingtalkstream/blob/master/Readme.md

Commands to install the necessary packages via the Package Manager Console in Visual Studio.

```bash
// 直接安装 Jusoft.DingtalkStream 包，会自动安装 Jusoft.DingtalkStream.Core 和 Jusoft.DingtalkStream.Robot
Install-Package Jusoft.DingtalkStream // 集合了所有的回调处理能力


Install-Package Jusoft.DingtalkStream.Core // DingStream 的核心处理能力，可以独立使用
Install-Package Jusoft.DingtalkStream.Robot // 实现了针对机器人回调的处理能力以及辅助方法
```

--------------------------------

### Configure DingtalkStream in Program.cs

Source: https://github.com/yancy1028/jusoft.dingtalkstream/blob/master/Readme.md

Initializes the DingtalkStream client within a .NET host builder. Requires the Jusoft.DingtalkStream package and optional robot message callback extensions.

```csharp
// =================  Program.cs  ====================
IHost host = Host.CreateDefaultBuilder(args)
    .ConfigureServices(services =>
    {
        services.AddDingtalkStream(options =>
        {
            options.ClientId = "dingXXXXXXXXXXXX";
            options.ClientSecret = "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx";

            // options.UA = "dingtalk-stream-demo/1.0.0"; // 扩展的自定义的UA
            // options.Subscriptions.Add //  订阅，也可以在这里配置

            options.AutoReplySystemMessage = true; // 自动回复 SYSTEM 的消息（ping,disconnect）

        }).RegisterEventSubscription()  // 注册事件订阅 （可选）
          .RegisterCardInstanceCallback()// 注册卡片回调 （可选）
          .RegisterIMRobotMessageCallback()// 注册机器人消息回调 （可选）需要安装：Jusoft.DingtalkStream.Robot
           //.RegisterSubscription("{type}","{topic}")// 注册订阅基础方法
          .AddMessageHandler<DefaultMessageHandler>() //添加消息处理服务
          .AddHostServices();// 添加主机服务，用于启动 DingtalkStreamClient

    })
    .Build();

await host.RunAsync();
```

--------------------------------

### Handle Callback and Reply Messages

Source: https://github.com/yancy1028/jusoft.dingtalkstream/blob/master/Readme.md

Create a callback message data object and reply to the incoming event using the DingtalkStreamUtilities.

```csharp
replyMessageData = DingtalkStreamUtilities.CreateReply_Callback_MessageData("自定义回调结果");

    break;
break;
}

// 创建回复的消息
var replyMessage = await DingtalkStreamUtilities.CreateReplyMessage(e.Headers.MessageId, replyMessageData);
// 回复消息方法
await e.Reply(replyMessage);
```

--------------------------------

### Send Robot Messages via Webhook

Source: https://github.com/yancy1028/jusoft.dingtalkstream/blob/master/Readme.md

Use these methods to send different message formats to a DingTalk session webhook. Ensure the robotMessage.SessionWebhook is correctly initialized before calling these methods.

```csharp
// 使用机器人发送 文本 消息
await DingtalkRobotWebhookUtilites.SendTextMessage(robotMessage.SessionWebhook, "@43475226895352吃饭了吗？", atUserIds: new string[] { "43475226895352" });
// 使用机器人发送 Link 消息
await DingtalkRobotWebhookUtilites.SendLinkMessage(robotMessage.SessionWebhook, "这是Link消息", "这是一个Link消息", "https://img.alicdn.com/tfs/TB1NwmBEL9TBuNjy1zbXXXpepXa-2400-1218.png", "https://open.dingtalk.com/document/");
// 使用机器人发送 Markdown 消息
await DingtalkRobotWebhookUtilites.SendMarkdownMessage(robotMessage.SessionWebhook, "杭州天气", "#### 杭州天气 @43475226895352 \n> 9度，西北风1级，空气良89，相对温度73%\n> ![screenshot](https://img.alicdn.com/tfs/TB1NwmBEL9TBuNjy1zbXXXpepXa-2400-1218.png)\n> ###### 10点20分发布 [天气](https://www.dingalk.com) \n", atUserIds: new string[] { "43475226895352" });
// 使用机器人发送 ActionCard 消息
await DingtalkRobotWebhookUtilites.SendActionCardMessage(robotMessage.SessionWebhook, "乔布斯 20 年前想打造一间苹果咖啡厅，而它正是 Apple Store 的前身",
                                                                           "![screenshot](https://img.alicdn.com/tfs/TB1NwmBEL9TBuNjy1zbXXXpepXa-2400-1218.png) \n\n #### 乔布斯 20 年前想打造的苹果咖啡厅 \n\n Apple Store 的设计正从原来满满的科技感走向生活化，而其生活化的走向其实可以追溯到 20 年前苹果一个建立咖啡馆的计划",
                                                                           BtnOrientation.Vertical,
                                                                           ("内容不错", "https://www.dingtalk.com/"),
                                                                           ("不感兴趣", "https://www.dingtalk.com/"),
                                                                           ("🥩", "https://www.dingtalk.com/"),
                                                                           ("ヽ(●-`Д´-)ノ", "https://www.dingtalk.com/"),
                                                                           ("ヾﾉ≧∀≦)o死开!", "https://www.dingtalk.com/"),
                                                                           ("ヾ(≧O≦)〃嗷~", "https://www.dingtalk.com/"),
                                                                           ("ლ(╹◡╹ლ)", "https://www.dingtalk.com/"),
                                                                           ("┣▇▇▇═─ ", "https://www.dingtalk.com/"),
                                                                           ("୧(๑•̀⌄•́๑)૭碉堡了", "https://www.dingtalk.com/"),
                                                                           ("(@﹏@)~", "https://www.dingtalk.com/")
                                                                       );

// 使用机器人发送 FeedCard 消息
await DingtalkRobotWebhookUtilites.SendFeedCardMessage(robotMessage.SessionWebhook,
                        ("时代的火车向前开1", "https://www.dingtalk.com/", "https://img.alicdn.com/tfs/TB1NwmBEL9TBuNjy1zbXXXpepXa-2400-1218.png"),
                        ("时代的火车向前开2", "https://www.dingtalk.com/", "https://img.alicdn.com/tfs/TB1NwmBEL9TBuNjy1zbXXXpepXa-2400-1218.png")
                                                );
```

--------------------------------

### Implement DefaultMessageHandler for Dingtalk Stream

Source: https://github.com/yancy1028/jusoft.dingtalkstream/blob/master/Readme.md

Implementation of the message handler by inheriting IDingtalkStreamMessageHandler and overriding HandleMessage to process incoming events and callbacks.

```csharp
// =================  DefaultMessageHandler.cs  ====================
// 实现消息处理类
//
// 继承 IDingtalkStreamMessageHandler
// 重写 HandleMessage 方法，可处理所有能收到的消息
public class DefaultMessageHandler : IDingtalkStreamMessageHandler
{
    public async Task HandleMessage(MessageEventHanderArgs e)
    {
        // 此处进行订阅的 Topic 的处理,处理消息的代码

        var replyMessageData = string.Empty;// 记录最终回复消息的Data 的内容
        switch (e.Type)
        {
            case SubscriptionType.EVENT:
                // 事件推送的处理
                replyMessageData = await DingtalkStreamUtilities.CreateReplyEventSuccessMessageData("自定义成功消息");
                // replyMessageData = await DingtalkStreamUtilities.CreateReplyEventFaildMessageData("自定义失败消息");
                break;
            case SubscriptionType.CALLBACK:
                // 回调推送的处理
                 
                    // 判断是否机器人回调的消息
                    //! 需要添加 Jusoft.DingtalkStream.Robot 包
                    if (e.Headers.IsRobotTopic())
                    {
                        var robotMessage = e.GetRobotMessageData();

                        // 通过消息类型 robotMessage.MsgType 来识别具体的消息内容

                        // 获取语音消息内容
                        //var content=robotMessage.GetAudioContent();
                        // 获取富文件消息内容
                        //var content=robotMessage.GetFileContent();
                        // 获取富图片消息内容
                        //var content=robotMessage.GetPictureContent();
                        // 获取富文本消息内容
                        //var content =robotMessage.GetRichTextContent();
                        // 获取文本消息内容
                        //var content = robotMessage.GetTextContent();
                        // 获取视频消息内容
                        //var content=robotMessage.GetVideoContent();
```

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