Part 51 - Send OTP ( One Time Password ) to any mobile number in Asp.net MVC

In this video you will be able to know how to send OTP ( One time password) to any mobile number.  You need to follow below steps

1. Visit  TextLocal  official website and Register yourself
2. Generate API Key as show in video

3. Use your API key in C# MVC to send OTP via textlocal API 

Please copy below codes after generating API key.

# View Page (Index.cshtml)

Right click on your controller' s Index method and add a view. After adding view, replace content with below code. 

@model MVCTutorial.Models.EmployeeViewModel
@{
    ViewBag.Title = "Index";
    // Layout = null;
}

        <div class="well">
           
            <a href="#" class="btn btn-success" onclick="SendOTP()">Send OTP</a>

        </div>

<script>


    var SendOTP = function () {
        
        $.ajax({
            url: "/Test/SendOTP",
            type: "post",
            success: function (data) {
                if (data == "success") {
                    
                    alert("OTP sent successfully");
                    window.location = "/Test/EnterOTP";
                }
                else {
                    alert("failed");
                }
            }


        })

    }

</script>

# Controller Code (TestController.cs)

Create a Test controller and copy below code into this. 

using ASPSnippets.SmsAPI;
using MVCTutorial.Models;
using Newtonsoft.Json.Linq;
using System;
using System.Collections.Generic;
using System.Collections.Specialized;
using System.Configuration;
using System.IO;
using System.Linq;
using System.Net;
using System.Web;
using System.Web.Mvc;

namespace MVCTutorial.Controllers
{
    public class TestController : Controller
    {
        public ActionResult Index()
        {         

            return View();
        }

      
        public JsonResult SendOTP()
        {
            int otpValue = new Random().Next(100000, 999999);
            var status = "";
            try
            {
                string recipient =  ConfigurationManager.AppSettings["RecipientNumber"].ToString();
                string APIKey = ConfigurationManager.AppSettings["APIKey"].ToString();

                string message = "Your OTP Number is " + otpValue + " ( Sent By : Technotips-Ashish )";
                String encodedMessage = HttpUtility.UrlEncode(message);

                using (var webClient = new WebClient())
                {
                    byte[] response = webClient.UploadValues("https://api.textlocal.in/send/", new NameValueCollection(){
                                        
                                         {"apikey" , APIKey},
                                         {"numbers" , recipient},
                                         {"message" , encodedMessage},
                                         {"sender" , "TXTLCL"}});

                    string result = System.Text.Encoding.UTF8.GetString(response);

                    var jsonObject = JObject.Parse(result);

                    status = jsonObject["status"].ToString();

                    Session["CurrentOTP"] = otpValue;
                }


                return Json(status, JsonRequestBehavior.AllowGet);


            }
            catch (Exception e)
            {

                throw (e);

            }

        }

        public ActionResult EnterOTP()
        {
            return View();
        }
        
        [HttpPost]
        public JsonResult VerifyOTP(string otp)
        {
            bool result = false;

            string sessionOTP = Session["CurrentOTP"].ToString();

            if (otp == sessionOTP)
            {
                result = true;

            }

            return Json(result, JsonRequestBehavior.AllowGet);
        }

    }
}

#Web.Config file

Add two keys into your web.config file . In first key, Enter Your API key generated by textlocal.com website . In second key, Enter your mobile number as recipient  with country code. example: 919234567895 . You can get mobile number either from database or from the textbox in which user enter his mobile number.

  <add key="APIKey" value="Enter your API key here" />
  <add key="RecipientNumber" value="91XXXXXXXXXX" />
  

All Code Factory

• Part 11- Insert data into database
• Part 12- Server side and clientside validation
• Part 13- Insert data into multiple tables
• Part 14- Insert data into database using JQuery
• Part 15- How to create Bootstrap Popup
• Part 16- Delete operation in Asp.net MVC
• Part 17- What is Partial View in Asp.net MVC
• Part 18- How to call Partial View using JQuery
• Part 19- Difference between Html.Partial() and Html.RenderPartial()
• Part 20- AddEdit Record using Partial View
• Part 21- Layout View in Asp.net MVC
• Part 22- Style.Render and Script.Render
• Part 23 - RenderBody, RenderSection and RenderPage.
• Part 24- Divide Page into several component using Bootstrap
• Part 25- Refresh Entity framework after any modification in database table
• Part 26- Set foreign key relationnship in database tables
• Part 27- Create Rgistration Page
• Part 28- Create Login Page
• Part 29- Client Side Validation using JQuery
• Part 30- How to return multiple Model to a View (Interview)
• Part 31- How to create Dynamic Menu using Partial View
• Part 32- Preview Image Before Uploading
• Part 33- Upload and Display Image using JQuery
• Part 34-Upload Image to SQL Server and Display
• Part 35- Download Image from URL and Upload to SQL Server
• Part 36- Cascading DropdownList
• Part 37- Implement Search Functionality
• Part 38- Attribute Routing in MVC
• Part 39- How to display multiple checkbox checked data
• Part 40- How to send multiple checkbox checked value to Server
• Part 41- How to create responsive sortable Image Gallery
• Part 42 - How to implement JQuery Autocomplete Textbox
• Part 43 - How to send Emails in Asp.net MVC
• Part 44 - Integrate JQuery DataTables plugin
• Part 45 - Display record from database using JQuery Datatable
• Part 46- Add Edit Record using JQuery DataTable
• Part 47 - JQuery DataTables Server -side Processing
• Part 48 - JQuery server side processing -Search functionality
• Part 49 - Pagination using Skip and Take method
• Part 50 - Refresh DataTable After Performing Any Action
• Part 51 - Send OTP ( One Time Password ) to any mobile device
• Part 52 - How to use AutoMapper in Asp.net MVC
• Part 53 - How to use AutoMapper ForMember Method
• Part 54 - Repository Pattern - 1 - Adding Business Layer
• Part 55 - Repository Pattern - 2 - Adding Domain Layer
• Part 56 - Repository Pattern - 3 - Dependency Injection
• Part 57- Repository Pattern- 4 - Adding Data Access Layer
• Part 58 - Repository Pattern - 5 - Setting Up Generic Repository
• Part 59 - Display Record using repository pattern
• Part 60 - Add Edit Record using Repository Pattern