Transfering Pay Button from App directly to Store

BTCPayServer/Models/StoreViewModels/PayButtonViewModel.cs

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+using System;
+using System.Collections.Generic;
+using System.ComponentModel.DataAnnotations;
+using System.Linq;
+using System.Threading.Tasks;
+
+namespace BTCPayServer.Models.StoreViewModels
+{
+    public class PayButtonViewModel
+    {
+        public decimal Price { get; set; }
+        [Required]
+        public string Currency { get; set; }
+        public string CheckoutDesc { get; set; }
+        public string OrderId { get; set; }
+        public int ButtonSize { get; set; }
+        [Url]
+        public string ServerIpn { get; set; }
+        [Url]
+        public string BrowserRedirect { get; set; }
+        [EmailAddress]
+        public string NotifyEmail { get; set; }
+
+        public string StoreId { get; set; }
+
+        // Data that influences Pay Button UI, but not invoice creation
+        public string UrlRoot { get; set; }
+        public List<string> CurrencyDropdown { get; set; }
+        public string PayButtonImageUrl { get; set; }
+    }
+}