Added support for LTO Template message

Samples/WhatsAppBusinessCloudAPI.Web/Controllers/HomeController.cs

@@ -1062,6 +1062,100 @@ public async Task<IActionResult> SendWhatsAppCouponCodeTemplateMessage(SendTempl
 			}
 		}
 
+        [HttpPost]
+        [ValidateAntiForgeryToken]
+        public async Task<IActionResult> SendWhatsAppLimitedTimeOfferTemplateMessage(SendTemplateMessageViewModel sendTemplateMessageViewModel)
+        {
+            try
+            {
+                LimitedTimeOfferTemplateMessageRequest limitedTimeOfferTemplateMessageRequest = new LimitedTimeOfferTemplateMessageRequest();
+				limitedTimeOfferTemplateMessageRequest.To = sendTemplateMessageViewModel.RecipientPhoneNumber;
+				limitedTimeOfferTemplateMessageRequest.Template = new();
+				limitedTimeOfferTemplateMessageRequest.Template.Name = sendTemplateMessageViewModel.TemplateName;
+				limitedTimeOfferTemplateMessageRequest.Template.Language = new();
+				limitedTimeOfferTemplateMessageRequest.Template.Language.Code = LanguageCode.English_US;
+                limitedTimeOfferTemplateMessageRequest.Template.Components = new List<LimitedTimeOfferMessageComponent>()
+                {
+                    new LimitedTimeOfferMessageComponent()
+                    {
+                        Type = "body",
+                        Parameters = new List<LimitedTimeOfferMessageParameter>()
+                        {
+                            new LimitedTimeOfferMessageParameter()
+                            {
+                                Type = "text",
+                                Text = "Pablo"
+                            },
+                            new LimitedTimeOfferMessageParameter()
+                            {
+                                Type = "text",
+                                Text = "CARIBE25"
+							}
+                        }
+                    },
+                    new LimitedTimeOfferMessageComponent()
+                    {
+                        Type = "limited_time_offer",
+                        Parameters = new List<LimitedTimeOfferMessageParameter>()
+                        {
+                            new LimitedTimeOfferMessageParameter()
+                            {
+                                Type = "limited_time_offer",
+                                LimitedTimeOffer = new LimitedTimeOffer()
+                                {
+                                    ExpirationTimeMs = new DateTimeOffset(DateTime.UtcNow.AddHours(2)).ToUnixTimeMilliseconds()
+                                }
+							}
+                        }
+					},
+                    new LimitedTimeOfferMessageComponent()
+                    {
+                        Type = "button",
+                        SubType = "copy_code",
+                        Index = 0,
+                        Parameters = new List<LimitedTimeOfferMessageParameter>()
+                        {
+                            new LimitedTimeOfferMessageParameter()
+                            {
+                                Type = "coupon_code",
+                                CouponCode = "CARIBE25"
+							}
+                        }
+                    },
+                    new LimitedTimeOfferMessageComponent()
+                    {
+                        Type = "button",
+                        SubType = "url",
+                        Index = 1,
+                        Parameters = new List<LimitedTimeOfferMessageParameter>()
+                        {
+                            new LimitedTimeOfferMessageParameter()
+                            {
+                                Type = "text",
+                                Text = "https://www.google.com/maps"
+							}
+                        }
+                    }
+                };
+
+				var results = await _whatsAppBusinessClient.SendLimitedTimeOfferMessageTemplateAsync(limitedTimeOfferTemplateMessageRequest);
+
+				if (results != null)
+				{
+					return RedirectToAction(nameof(Index)).WithSuccess("Success", "Successfully sent limited time offer template message");
+				}
+				else
+				{
+					return RedirectToAction(nameof(SendWhatsAppTemplateMessage));
+				}
+			}
+			catch (WhatsappBusinessCloudAPIException ex)
+			{
+				_logger.LogError(ex, ex.Message);
+				return RedirectToAction(nameof(SendWhatsAppTemplateMessage)).WithDanger("Error", ex.Message);
+			}
+		}
+
 		public IActionResult SendWhatsAppContactMessage()
         {
             return View();

Samples/WhatsAppBusinessCloudAPI.Web/Views/Home/SendWhatsAppTemplateMessage.cshtml

@@ -51,6 +51,7 @@
 							<button asp-action="SendWhatsAppCatalogueTemplateMessage" asp-controller="Home" class="btn btn-primary">Send Catalogue Template Message</button>
 							<button asp-action="SendWhatsAppCarouselTemplateMessage" asp-controller="Home" class="btn btn-primary">Send Carousel Template Message</button>
 							<button asp-action="SendWhatsAppCouponCodeTemplateMessage" asp-controller="Home" class="btn btn-primary">Send Coupon Code Template Message</button>
+							<button asp_action="SendWhatsAppLimitedTimeOfferTemplateMessage" asp-controller="Home" class="btn btn-primary">Send Limited Time Offer Message</button>
 						</div>
 					</div>
 				</form>

WhatsappBusiness.CloudApi/Interfaces/IWhatsAppBusinessClient.cs

@@ -853,6 +853,24 @@ public interface IWhatsAppBusinessClient
 		/// <param name="cancellationToken">Cancellation token</param>
 		/// <returns>WhatsAppResponse</returns>
 		WhatsAppResponse SendCouponCodeMessageTemplate(CouponCodeTemplateMessageRequest couponCodeTemplateMessageRequest, WhatsAppBusinessCloudApiConfig? cloudApiConfig = null, CancellationToken cancellationToken = default);
+
+		/// <summary>
+		/// Send Limited Time Offer Template Message
+		/// </summary>
+		/// <param name="limitedTimeOfferTemplateMessageRequest">LimitedTimeOfferTemplateMessageRequest object</param>
+		/// <param name="cloudApiConfig">Custom WhatsAppBusinessCloudApiConfig</param>
+		/// <param name="cancellationToken">Cancellation token</param>
+		/// <returns>WhatsAppResponse</returns>
+		Task<WhatsAppResponse> SendLimitedTimeOfferMessageTemplateAsync(LimitedTimeOfferTemplateMessageRequest limitedTimeOfferTemplateMessageRequest, WhatsAppBusinessCloudApiConfig? cloudApiConfig = null, CancellationToken cancellationToken = default);
+
+		/// <summary>
+		/// Send Limited Time Offer Template Message
+		/// </summary>
+		/// <param name="limitedTimeOfferTemplateMessageRequest">LimitedTimeOfferTemplateMessageRequest object</param>
+		/// <param name="cloudApiConfig">Custom WhatsAppBusinessCloudApiConfig</param>
+		/// <param name="cancellationToken">Cancellation token</param>
+		/// <returns>WhatsAppResponse</returns>
+		WhatsAppResponse SendLimitedTimeOfferMessageTemplate(LimitedTimeOfferTemplateMessageRequest limitedTimeOfferTemplateMessageRequest, WhatsAppBusinessCloudApiConfig? cloudApiConfig = null, CancellationToken cancellationToken = default);
         #endregion
 
 		#region Two step verification code function

WhatsappBusiness.CloudApi/Messages/Requests/LimitedTimeOfferTemplateMessageRequest.cs

@@ -0,0 +1,86 @@
+using Newtonsoft.Json;
+using System.Collections.Generic;
+
+namespace WhatsappBusiness.CloudApi.Messages.Requests
+{
+	public class LimitedTimeOfferTemplateMessageRequest
+	{
+		[JsonProperty("messaging_product")]
+		public string MessagingProduct { get; private set; } = "whatsapp";
+
+		[JsonProperty("recipient_type")]
+		public string RecipientType { get; private set; } = "individual";
+
+		[JsonProperty("to")]
+		public string To { get; set; }
+
+		[JsonProperty("type")]
+		public string Type { get; private set; } = "template";
+
+		[JsonProperty("template")]
+		public LimitedTimeOfferMessageTemplate Template { get; set; }
+	}
+
+	public class LimitedTimeOfferMessageTemplate
+	{
+		[JsonProperty("name")]
+		public string Name { get; set; }
+
+		[JsonProperty("language")]
+		public LimitedTimeOfferMessageLanguage Language { get; set; }
+
+		[JsonProperty("components")]
+		public List<LimitedTimeOfferMessageComponent> Components { get; set; }
+	}
+
+	public class LimitedTimeOfferMessageComponent
+	{
+		[JsonProperty("type")]
+		public string Type { get; set; }
+
+		[JsonProperty("parameters")]
+		public List<LimitedTimeOfferMessageParameter> Parameters { get; set; }
+
+		[JsonProperty("sub_type", NullValueHandling = NullValueHandling.Ignore)]
+		public string SubType { get; set; }
+
+		[JsonProperty("index", NullValueHandling = NullValueHandling.Ignore)]
+		public long? Index { get; set; }
+	}
+
+	public class LimitedTimeOfferMessageParameter
+	{
+		[JsonProperty("type")]
+		public string Type { get; set; }
+
+		[JsonProperty("image", NullValueHandling = NullValueHandling.Ignore)]
+		public LimitedTimeOfferMessageImage Image { get; set; }
+
+		[JsonProperty("text", NullValueHandling = NullValueHandling.Ignore)]
+		public string Text { get; set; }
+
+		[JsonProperty("limited_time_offer", NullValueHandling = NullValueHandling.Ignore)]
+		public LimitedTimeOffer LimitedTimeOffer { get; set; }
+
+		[JsonProperty("coupon_code", NullValueHandling = NullValueHandling.Ignore)]
+		public string CouponCode { get; set; }
+	}
+
+	public class LimitedTimeOfferMessageImage
+	{
+		[JsonProperty("id")]
+		public string Id { get; set; }
+	}
+
+	public class LimitedTimeOffer
+	{
+		[JsonProperty("expiration_time_ms")]
+		public long ExpirationTimeMs { get; set; }
+	}
+
+	public class LimitedTimeOfferMessageLanguage
+	{
+		[JsonProperty("code")]
+		public string Code { get; set; }
+	}
+}

WhatsappBusiness.CloudApi/WhatsAppBusinessClient.cs

@@ -2002,6 +2002,29 @@ public WhatsAppResponse SendCouponCodeMessageTemplate(CouponCodeTemplateMessageR
 			return WhatsAppBusinessPostAsync<WhatsAppResponse>(couponCodeTemplateMessageRequest, formattedWhatsAppEndpoint, cancellationToken).GetAwaiter().GetResult();
 		}
 
+		public async Task<WhatsAppResponse> SendLimitedTimeOfferMessageTemplateAsync(LimitedTimeOfferTemplateMessageRequest limitedTimeOfferTemplateMessageRequest, WhatsAppBusinessCloudApiConfig? cloudApiConfig = null, CancellationToken cancellationToken = default)
+        {
+			if (cloudApiConfig is not null)
+			{
+				_whatsAppConfig = cloudApiConfig;
+			}
+
+			var formattedWhatsAppEndpoint = WhatsAppBusinessRequestEndpoint.SendMessage.Replace("{{Phone-Number-ID}}", _whatsAppConfig.WhatsAppBusinessPhoneNumberId);
+			return await WhatsAppBusinessPostAsync<WhatsAppResponse>(limitedTimeOfferTemplateMessageRequest, formattedWhatsAppEndpoint, cancellationToken);
+		}
+
+
+		public WhatsAppResponse SendLimitedTimeOfferMessageTemplate(LimitedTimeOfferTemplateMessageRequest limitedTimeOfferTemplateMessageRequest, WhatsAppBusinessCloudApiConfig? cloudApiConfig = null, CancellationToken cancellationToken = default)
+        {
+            if (cloudApiConfig is not null)
+            {
+                _whatsAppConfig = cloudApiConfig;
+            }
+
+			var formattedWhatsAppEndpoint = WhatsAppBusinessRequestEndpoint.SendMessage.Replace("{{Phone-Number-ID}}", _whatsAppConfig.WhatsAppBusinessPhoneNumberId);
+			return WhatsAppBusinessPostAsync<WhatsAppResponse>(limitedTimeOfferTemplateMessageRequest, formattedWhatsAppEndpoint, cancellationToken).GetAwaiter().GetResult();
+		}
+
 		/// <summary>
 		/// You can use this endpoint to change two-step verification code associated with your account. After you change the verification code, future requests like changing the name, must use the new code.
 		/// You set up two-factor verification and register a phone number in the same API call.