Real Time Bot Project Using Microsoft Bot Framework

Sourabh Somani

31 Comments

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Chirag Madhani8y ago
I cann't find namespace "using Microsoft.Bot.Connector.Utilities;" and also, when i am trying to call webservice it is giving error of "webexception 403 forbidden" .
Vipin Maurya9y ago
I am new to bots. This application is not working for me. Can you help me
Prudhveer Kankar9y ago
I tried to connect the same bot to the emulator,but it was not connecting, [14:15:34] -> POST getaddrinfo ENOTFOUND http http:443 It was showing this error in Log,what do i do now
vishal verma9y ago
Nice one.It si really nice article.keep it up
Youssra Benchekroun9y ago
Thank you for your article. On my messageController , i have a problem with Message (it's not known )
- Paddy Bagels9y ago
  I am also stuck with this. Any ideas?
Rijo PR10y ago
Is it possible to get the reply from this bot as voice commands rather than text reply?
Rijo PR10y ago
Nice one.
- Sourabh Somani10y ago
  Thanks :)
Radhakrishnan Iyer10y ago
Great Article. Can you give a few pointers on how the summarize bot under the bot directory works?
- Sourabh Somani10y ago
  Thanks :)
Prasanna Murali10y ago
Nice one...
- Sourabh Somani10y ago
  Thanks
Bhuvanesh Mohankumar10y ago
Good one..
- Sourabh Somani10y ago
  Thanks
Debasis Saha10y ago
Nice article..
- Sourabh Somani10y ago
  Thanks
Bhavik Patel10y ago
good article.
- Sourabh Somani10y ago
  thanks :)
Gowtham Rajamanickam10y ago
nice sharing..
Kuppurasu Nagaraj10y ago
Nice Sharing..
- Sourabh Somani10y ago
  Thank you :)
Vignesh Mani10y ago
Nice
Rahul Kumar Saxena10y ago
Good Show
- Sourabh Somani10y ago
  Rahul Saxena Thanks :)
Gowtham Rajamanickam10y ago
nice article..
- Sourabh Somani10y ago
  Thanks :)
Nitesh Kejriwal10y ago
Its outstanding Sourabh!
- Sourabh Somani10y ago
  Nitesh Luharuka Thank you sir. :)
Shakti Singh Dulawat10y ago
Read first time about it and impress with the work and explain
- Sourabh Somani10y ago
  Thank you sir :)

Introduction

In my previous article "Creating a Simple Bot Application using Microsoft Bot Framework", I explained how can we create a very simple Bot application using Microsoft Bot Framework.

In this article I will create a very simple real time Bot Application using Microsoft Bot Framework, that is Stock Bot. In this application I will use Yahoo's Finance API. I will pass a stock symbol as a message and I will get the current stock value of that particular company symbol.

Let's start step by step:

Step 1: Firstly, create a Bot Application,

Step 2: Create a class in your project with any name. I am giving Name as Yahoo Bot Application and writing the following code inside it.

using System;
using System.Collections.Generic;
using System.Linq;
using System.Net;
using System.Threading.Tasks;
using System.Web;
namespace StockBot2
{
public class YahooBot
{
public static async Task<double?> GetStockRateAsync(string StockSymbol)
{
try
{
string ServiceURL = $"http://finance.yahoo.com/d/quotes.csv?s={StockSymbol}&f=sl1d1nd";
string ResultInCSV;
using (WebClient client = new WebClient())
{
ResultInCSV = await client.DownloadStringTaskAsync(ServiceURL).ConfigureAwait(false);
}
var FirstLine = ResultInCSV.Split('\n')[0];
var Price = FirstLine.Split(',')[1];
if (Price != null && Price.Length >= 0)
{
double result;
if (double.TryParse(Price, out result))
{
return result;
}
}
return null;
}
catch (WebException ex)
{
//handle your exception here
throw ex;
}
}
}
}

In the above code you can see a function that is GetStockRateAsync, which takes a StockSymbol as a parameter. I am calling Yahoo Finance API, where I will pass that symbol and that will return a CSV file of stock market rate, and I am splitting CSV File by comma because CSV File means Comma Separated Value. So, I am splitting by comma(,) and getting current price of that stock. Then I am converting it into double because of course our stock rate will be in double and returning current price.

Step 3: Now in MessagesController create a class that will call this above function., so I am creating a GetStock function in My MessageController class.

GetStock function's Code

private async Task<string> GetStock(string StockSymbol)
{
double? dblStockValue = await YahooBot.GetStockRateAsync(StockSymbol);
if(dblStockValue==null)
{
return string.Format("This \"{0}\" is not an valid stock symbol",StockSymbol);
}
else
{
return string.Format("Stock : {0}\n Price : {1}",StockSymbol,dblStockValue);
}
}

In above code you can see I am calling my GetStockRateAsync function that will return a nullable double. I am checking whether that stock value is null or not.

According to stock value I am returning appropriate string.

Step 4: Calling GetStock function from Post action of MessagesController.

Post Action's Code in MessagesController

public async Task<Message> Post([FromBody]Message message)
{
if (message.Type == "Message")
{
string StockRateString = await GetStock(message.Text);
// return our reply to the user
return message.CreateReplyMessage(StockRateString);
}
else
{
return HandleSystemMessage(message);
}
}

In above code you can see when a user will send a message that will be nothing but a symbol, GetStock function will be called and will return an appropriate message as a reply message.

Step 5: Run the project and simulate in Bot Framework Simulator.

Output:

Initial Simulator Window

If I send invalid input stock symbol

For Microsoft stock:

For Google stock:

For Apple Stock:

Conclusion: In this article we have created a very simple bot application that will take stock symbol as an Input and send an auto reply message of that particular stock rate.

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