WeiXinSDKforBotFrameworkDirectline

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WeiXinSDKforBotFrameworkDirectline

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此demo 基于 WeixinSDK.net 源码基础上增加了 微软 botframework，以及cognitive services（认知服务）的调用。

希望大家可以在此基础上结合MS的 bot framework 和 cognitive services 丰富自己的Bot或微信公共号

This is a reference project base on WeixinSDK.net used to introduce how to use C# or ASP.NET communication with Microsoft bot framework Direct Line, Hope everyone can have yourselves' intelligent chat robot on WeChat also working with LUIS https://www.luis.ai/
 
For more technical details please refer to： http://www.cnblogs.com/sonic1abc/p/5941442.html

Demo for using bot direct line V1.1 rest APIs to connect bot with WeChat offical account
====

In bot frameowrk there is channel - direcline that can help to connect the bot to any canvas like native app, Wechat offical account, Wechat enterprise account,IoT device etc. This sample is based on WeiXinSDK.net C# open source code for Wechat offical account, we used bot DL to connect a WeChat offical account backend to a bot. The message received from WeChat can be transfer to bot.

Bot DL provids restful APIs, so it can be implemented by any language. The demo was implemeted by C#, if you were other dev langauge like Java, PHP, JS, etc, you could refer to the flow, and build with restful APIs by different languages.

For WeChat offical account, the projet with C# can be used as WeChat offical account backend directly. Hopefully, everyone could build your own bot in WeChat. :-)

How doest it work ?
====

In Wechat offical account backend, it will get a message from WeChat service WeixinMessageType.Text will handle text message from the user, where we can use PostMessage function in MSBot to forward this message to bot, and get reply from bot, finally reply to the user in WeChat. Please kindly find code snapshot

switch (message.Type)
    {
        case WeixinMessageType.Text://文字消息
        {
            var msgId = message.Body.MsgId.Value.ToString();
            string userMessage = message.Body.Content.Value;
            string BotMessage = await MSBot.PostMessage(userMessage);
            result = ReplayPassiveMessageAPI.RepayText(openId, myUserName, BotMessage);
        }
        break;
Now, in MSBot Class we need to implment PostMessage

public async static Task<string> PostMessage(string message)
    {
        HttpClient client;
        HttpResponseMessage response;

bool IsReplyReceived = false;

string ReceivedString = null;

client = new HttpClient();
        client.BaseAddress = new Uri("https://directline.botframework.com/api/conversations/");
        client.DefaultRequestHeaders.Accept.Clear();
        client.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("application/json"));
        client.DefaultRequestHeaders.Authorization = new AuthenticationHeaderValue("BotConnector", "aDyJxnUSx30.cwA.WOg.4DzXtwItzBC6jyUCxHXG8fLKcgdx2zZYf2BkkfW5Lpc");
        response = await client.GetAsync("/api/tokens/");
        if (response.IsSuccessStatusCode)
        {
            var conversation = new Conversation();
            response = await client.PostAsJsonAsync("/api/conversations/", conversation);
            //response = await client.PostAsync("/api/conversations/", null);
            if (response.IsSuccessStatusCode)
            {
                Conversation ConversationInfo = response.Content.ReadAsAsync(typeof(Conversation)).Result as Conversation;
                string conversationUrl = ConversationInfo.conversationId + "/messages/";
                Message msg = new Message() { text = message };
                response = await client.PostAsJsonAsync(conversationUrl, msg);
                if (response.IsSuccessStatusCode)
                {
                    response = await client.GetAsync(conversationUrl);
                    if (response.IsSuccessStatusCode)
                    {
                        MessageSet BotMessage = response.Content.ReadAsAsync(typeof(MessageSet)).Result as MessageSet;
                        ReceivedString = BotMessage.messages[1].text;
                        IsReplyReceived = true;
                    }
                }
            }

}
        return ReceivedString;
    }

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