How to Send and Verify OTP using TWILIO in Unity?

Update: I found a solution. I am using Textlocal my OTP services. Here's the tutorial I followed: https://www.youtube.com/watch?v=d8OrtnpFC3M&feature=player_embedded So the code is in C# but not meant for UNity I have edited the code to fit Unity.

Here is my code:

using System; using System.Collections.Generic; using System.Net; using System.Collections.Specialized; using System.IO; using System.Text; using UnityEngine; using System.Collections.Generic; using System.Net; using System.Collections.Specialized; using System.Threading.Tasks; using System.Linq; using Random = System.Random; using UnityEngine.UI;

public class OTPSMS : MonoBehaviour { // public string txtPhone; // public string txtName; string randomNumber; public GameObject MessageBox; public GameObject MessageBox2; public GameObject MessageBox3; public GameObject MessageBox4; public InputField txtPhone; public InputField txtName; public InputField txtVerOTP;

 // Start is called before the first frame update
 void Start()
 {
     MessageBox.SetActive(false);
     MessageBox2.SetActive(false);
     MessageBox3.SetActive(false);
     MessageBox4.SetActive(false);
 }

 // Update is called once per frame
 void Update()
 {

 }

 public void login()
 {

     String result;
     string apiKey = "YOUR API key"; //the one which you will register on textlocal
     string numbers = txtPhone.text; // in a comma seperated list
    
     string sender = "TXTLCL";
     string name = txtName.text;
     var rnd = new Random();
     randomNumber = (rnd.Next(100000, 999999)).ToString();
     string message = "Hey " +name+ " Your OTP is " +randomNumber ;

     String url = "https://api.textlocal.in/send/?apikey=" + apiKey + "&numbers=" + numbers + "&message=" + message + "&sender=" + sender;
     //refer to parameters to complete correct url string

     StreamWriter myWriter = null;
     HttpWebRequest objRequest = (HttpWebRequest)WebRequest.Create(url);

     objRequest.Method = "POST";
     objRequest.ContentLength = Encoding.UTF8.GetByteCount(url);
     objRequest.ContentType = "application/x-www-form-urlencoded";
     try
     {
         myWriter = new StreamWriter(objRequest.GetRequestStream());
         myWriter.Write(url);
     }
     catch (Exception e)
     {
         MessageBox.SetActive(true);
     }
     finally
     {
         myWriter.Close();
     }

     HttpWebResponse objResponse = (HttpWebResponse)objRequest.GetResponse();
     using (StreamReader sr = new StreamReader(objResponse.GetResponseStream()))
     {
         result = sr.ReadToEnd();
         // Close and clean up the StreamReader
         sr.Close();
     }
     MessageBox2.SetActive(true);

 }

 public void Verify()
 {
     if(txtVerOTP.text ==randomNumber)
     {
         MessageBox3.SetActive(true);
     }
     else
     {
         MessageBox4.SetActive(true);
     }
 }

}

And this is what the project lloks like: