Sending events from embedded webchat
I am trying to send and receive events from the embedded webchat, which follows the code for the website from this example https://github.com/ryanvolum/backChannelBot and the bot implements the code from the Bot framework that got the ServiceUrl of the embedded chat control page , ezequiel replied
This is how it all looks in my index.html setup
<!DOCTYPE html>
<!--
NOTE: This sample requires a bot which can send and receive specific event messages. Follow the instructions on
https://github.com/ryanvolum/backChannelBot to deploy such a bot.
This is a sample HTML file which shows how to embed an instance of WebChat which listens for event activities. For the sake
of demonstration it specifically listens for events of name "changeBackground". Using the backChannelBot sample
our page can listen for events of name "changeBackground" and send events of name "buttonClicked". This
highlights the ability for a bot to communicate with a page that embeds the bot through WebChat.
1. Build the project: "npm run build"
2. Start a web server: "npm run start"
3. Aim your browser at "http://localhost:8000/samples/backchannel?[parameters as listed below]"
For ease of testing, several parameters can be set in the query string:
* s = Direct Line secret, or
* t = Direct Line token (obtained by calling Direct Line Generate Token)
* domain = optionally, the URL of an alternate Direct Line endpoint
* webSocket = set to 'true' to use WebSocket to receive messages (currently defaults to false)
* userid, username = id (and optionally name) of bot user
* botid, botname = id (and optionally name) of bot
-->
<html>
<head>
<meta charset="UTF-8" />
<title>Bot Chat</title>
<link href="../../botchat.css" rel="stylesheet" />
<meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no" />
<style>
.wc-chatview-panel {
width: 320px;
height: 500px;
position: relative;
}
.h2{
font-family: Segoe UI;
}
</style>
</head>
<body>
<h2 style="font-family:Segoe UI;">Type a color into the WebChat!</h2>
<div id="BotChatGoesHere" class="wc-narrow"></div>
<button onclick="postButtonMessage()" style="width:120px;height:60px;padding:20px;margin-left:80px;margin-top:20px;">Click Me!</button>
<script src="../../botchat.js"></script>
<script>
var params = BotChat.queryParams(location.search);
var user = {
id: params['me'] || 'userid',
name: params["tester"] || 'username'
};
var bot = {
id: params['somebot'] || 'botid',
name: params["somebot"] || 'botname'
};
window['botchatDebug'] = params['debug'] && params['debug'] === "true";
var botConnection = new BotChat.DirectLine({
secret: params['mysecret'],
token: params['t'],
domain: params['ngroktunneledurl.com/api/messages'],
webSocket: params['webSocket'] && params['webSocket'] === "true" // defaults to true
});
BotChat.App({
botConnection: botConnection,
user: user,
bot: bot
}, document.getElementById("BotChatGoesHere"));
botConnection.activity$
.filter(activity => activity.type === "event" && activity.name === "changeBackground")
.subscribe(activity => changeBackgroundColor(activity.value))
const changeBackgroundColor = (newColor) => {
document.body.style.backgroundColor = newColor;
}
const postButtonMessage = () => {
botConnection
.postActivity({type: "event", value: "", from: {id: "me" }, name: "buttonClicked"})
.subscribe(id => console.log("success"));
}
</script>
</body>
</html>
And the bot file MessagesController.cs
using System;
using System.Linq;
using System.Net;
using System.Net.Http;
using System.Threading.Tasks;
using System.Web.Http;
using Microsoft.Bot.Builder.Dialogs;
using Microsoft.Bot.Connector;
using Kaseya_AI_Kbot.LuisDialog;
[BotAuthentication]
public class MessagesController : ApiController
{
public async Task<HttpResponseMessage> Post([FromBody]Activity activity)
{
if (activity.Type == ActivityTypes.Event &&
string.Equals(activity.Name, "buttonClicked", StringComparison.InvariantCultureIgnoreCase))
{
ConnectorClient connector = new ConnectorClient(new Uri(activity.ServiceUrl));
// return our reply to the user
Activity reply = activity.CreateReply("I see that you just pushed that button");
await connector.Conversations.ReplyToActivityAsync(reply);
}
if (activity.Type == ActivityTypes.Message)
{
ConnectorClient connector = new ConnectorClient(new Uri(activity.ServiceUrl));
// return our reply to the user
var reply = activity.CreateReply();
reply.Type = ActivityTypes.Event;
reply.Name = "changeBackground";
reply.Value = activity.Text;
await connector.Conversations.ReplyToActivityAsync(reply);
}
else
{
HandleSystemMessage(activity);
}
var response = Request.CreateResponse(HttpStatusCode.OK);
return response;
}
private async Task HandleSystemMessage(Activity message)
{
if (message.Type == ActivityTypes.DeleteUserData)
{
// Implement user deletion here
// If we handle user deletion, return a real message
}
else if (message.Type == ActivityTypes.ConversationUpdate)
{
if (message.MembersAdded.Any(o => o.Id == message.Recipient.Id))
{
ConnectorClient client = new ConnectorClient(new Uri(message.ServiceUrl));
var reply = message.CreateReply();
reply.Text = "Welcome to the bot!";
await client.Conversations.ReplyToActivityAsync(reply);
}
}
else if (message.Type == ActivityTypes.ContactRelationUpdate)
{
// Handle add/remove from contact lists
// Activity.From + Activity.Action represent what happened
}
else if (message.Type == ActivityTypes.Typing)
{
// Handle knowing tha the user is typing
}
else if (message.Type == ActivityTypes.Ping)
{
}
}
public async Task<HttpResponseMessage> Post([FromBody]Activity activity)
{
if (activity.Type == ActivityTypes.Event &&
string.Equals(activity.Name, "buttonClicked", StringComparison.InvariantCultureIgnoreCase))
{
ConnectorClient connector = new ConnectorClient(new Uri(activity.ServiceUrl));
// return our reply to the user
Activity reply = activity.CreateReply("I see that you just pushed that button");
await connector.Conversations.ReplyToActivityAsync(reply);
}
if (activity.Type == ActivityTypes.Message)
{
ConnectorClient connector = new ConnectorClient(new Uri(activity.ServiceUrl));
// return our reply to the user
var reply = activity.CreateReply();
reply.Type = ActivityTypes.Event;
reply.Name = "changeBackground";
reply.Value = activity.Text;
await connector.Conversations.ReplyToActivityAsync(reply);
}
else
{
HandleSystemMessage(activity);
}
var response = Request.CreateResponse(HttpStatusCode.OK);
return response;
}
}
}
I have tested sending messages that work fine, however when trying to send an event from a bot to a webpage or from a webpage to a bot, after receiving the message, it does nothing.
The webpage says BotChat is not defined for both, but I'm not sure why
var params = BotChat.queryParams(location.search);
and
var botConnection = new BotChat.DirectLine({
in index.html
Added all my app secrets / id and direct line secret. I feel like the problem might be how I add my secret and url to index.html, but I'm not sure how I set it all up.
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1 answer
I recreated your project and published it to Azure: http://QuickBackChannelEventTest.AzureWebsites.net/index.html
I posted the code on GitHub . You will need to change MicrosoftAppId and MicrosoftAppPassword in your web.config file and add your bot secret to your Direct Line
index.html page. Creation of BotChat.DirectLine:
var botConnection = new BotChat.DirectLine({
secret: '**DIRECT_LINE_SECRET**',//params['mysecret'],
//token: params['t'],
//domain: params['ngroktunneledurl.com/api/messages'],
webSocket: params['webSocket'] && params['webSocket'] === "true" // defaults to true
});
I also added a TestStandAlone folder that only contains Index.html, botchat.css, and botchat.js: https://github.com/EricDahlvang/BackChannelEventTest/tree/master/TestStandalone This works as expected when the bot is direct line secret set.
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