Receive WhatsApp Media Messages Using .NET

Overview

This guide shows how to receive WhatsApp text messages on a phone number registered against your WhatsApp Business Account. Typical use cases for receiving messages include customer support, opt-in and opt-out messages, and other customer interactions.

You can start receiving WhatsApp text messages using our APIs. Follow these instructions.

Prerequisites

To get started, you need a Plivo account — sign up with your work email address if you don’t have one already. If this is your first time using Plivo APIs, follow our instructions to set up a .NET development environment.

To receive incoming messages, you must have an onboarded WhatsApp account with inbound-capable numbers registered against it. If a number is in connected state, it can receive incoming messages.

Create an Server to receive messages

Create a file called WhatsappMessagereceive.NET and paste into it this code.

"using System;
using Microsoft.AspNetCore.Mvc;

namespace ReceiceWhatsapp.Controllers
{
    public class ReceiveWhatsappController : Controller
    {
        // GET: /<controller>/
        public String Index()
        {
            String from_number = Request.Form["From"];
            String to_number = Request.Form["To"];
            String text = Request.Form["Body"];
            String media = Request.Form["Media0"];
            Console.WriteLine("Message received - From: {0}, To: {1}, Media Attachment: {2}", from_number, to_number, media);

            if (text != null)
            {
                Console.WriteLine("Text: {0}", text);
            }

            return "Message received";
        }
    }
}"

Configure a webhook URL in your WhatsApp Business Account

Add or update a webhook URL against a WhatsApp Business Account. Once you’ve done this, you should be able to receive incoming messages.

Test

Send a text message to the Plivo number you specified using any phone.