图像出现在dialogflow chatbot中，但在whatsapp chatbot中没有显示，并使twilio出错

Question

    agent.add(new Card({
         title: `Title: this is a card title`,
         imageUrl: 'http://examplesitelink.com/image_name.png',
       })

MESSAGE
The URI scheme, of the URI null, must be equal (ignoring case) to 'http', 'https', 'ws', or 'wss'
......
HTTP retrieval failure
......
Possible Causes
Web server returned a 4xx or 5xx HTTP response to Twilio
Misconfigured Web Server
Network disruptions between Twilio and your web server
No Content-Type header attached to response
Content-Type doesn't match actual content, e.g. an MP3 file that is being served with Content-Type: audio/x-wav, instead of Content-Type: audio/mpeg

部分解

在局部解下

我可以通过dialogflow实现将图像发送到whats应用程序

首先，在'package.json'中，我在dependencies中添加了twilio，“twilio”：“3.37.1”（查看npm twilio上的最新版本）

const client = require('twilio')('YOUR_ACCOUNT_SID', 'YOUR_AUTH_TOKEN'); /* change YOUR_ACCOUNT_SID and YOUR_AUTH_TOKEN to your own twilio account data */

    client.messages
        .create({
            to: 'whatsapp:[phone]', /* change it to your the number which you want to send the image to*/ 
            from: 'whatsapp:[phone]', /* change it to your the number which twilio sandbox provide, you can find it here: https://www.twilio.com/console/sms/whatsapp/sandbox */
            body: "Hi Joe! Please find your boarding pass attached. Flight OA2345 departs at 11 pm PST.",
            mediaUrl: 'https://emerald-coral-3661.twil.io/assets/2-OwlAir-Upcoming-Trip.PNG',
        })
        .then((message) => console.log(message.sid));

Answer 1

const data = request.body.originalDetectIntentRequest.payload;
const To = data.From;
const From = data.To;

app.post("/", express.json(), (req, res) => {
    -------------------
    -------------------
    function handler() {
         ----------
    }
    intentMap.set("intent", handler);

}