async Task<string> GenerateJwtTokenAsync(User user)

Govor.Contracts/Requests/MediaUploadRequest.cs

@@ -0,0 +1,13 @@
+using System.ComponentModel.DataAnnotations;
+using Govor.Core.Models;
+
+namespace Govor.Contracts.Requests;
+
+public class MediaUploadRequest
+{
+    public byte[] Data { get; set; }
+    public string FileName { get; set; }
+    public string EncryptedKey { get; set; } = string.Empty;
+    public MediaType Type { get; set; }
+    public string MimeType { get; set; } = string.Empty;
+}

Govor.Contracts/Requests/SignalR/MediaReference.cs

@@ -0,0 +1,11 @@
+using Govor.Core.Models;
+
+namespace Govor.Contracts.Requests.SignalR;
+
+public record MediaReference
+{
+    public Guid MediaId { get; init; }
+    public string EncryptedKey { get; init; } = string.Empty;
+    public MediaType Type { get; init; }
+    public string MimeType { get; init; } = string.Empty;
+}

Govor.Contracts/Requests/SignalR/MessageRequest.cs

@@ -0,0 +1,9 @@
+namespace Govor.Contracts.Requests.SignalR;
+
+public record MessageRequest
+{
+    public Guid RecipientId { get; init; }
+    public string EncryptedContent { get; init; } = string.Empty;
+    public Guid? ReplyToMessageId { get; set; }
+    public List<MediaReference> MediaAttachments { get; set; } = new();
+}