Структура

backend/src/Contracts/Messaging/Domain/Reaction.cs

@@ -0,0 +1,23 @@
+using System;
+using Knot.Shared.Kernel;
+
+namespace Knot.Contracts.Messaging.Domain;
+
+public sealed class Reaction : Entity<Guid>
+{
+    public Guid MessageId { get; private set; }
+    public Guid UserId { get; private set; }
+    public string Emoji { get; private set; }
+
+    internal Reaction(Guid messageId, Guid userId, string emoji) : base(Guid.NewGuid())
+    {
+        MessageId = messageId;
+        UserId = userId;
+        Emoji = emoji;
+    }
+
+    private Reaction() : base(Guid.Empty)
+    {
+        Emoji = string.Empty;
+    }
+}