Adds messages api

src/Web/Messages/Handlers/PostReplyMessage.cs

@@ -0,0 +1,37 @@
+using FastEndpoints;
+using Hutopy.Web.Messages.Data;
+
+namespace Hutopy.Web.Messages.Handlers;
+
+public record PostReplyMessageRequest(
+    Guid ContentId,
+    Guid ParentId,
+    string Message);
+
+public sealed class PostReplyMessage(
+    MessagingDbContext context)
+    : Endpoint<PostReplyMessageRequest>
+{
+    public override void Configure()
+    {
+        Tags("Messages");
+        Post("/api/messages/reply");
+    }
+
+    public override async Task HandleAsync(
+        PostReplyMessageRequest req,
+        CancellationToken ct)
+    {
+        await context.Messages.AddAsync(
+            new Message
+            {
+                ContentId = req.ContentId,
+                ParentId = req.ParentId,
+                CreatedBy = User.GetUserId(),
+                Value = req.Message
+            },
+            ct);
+
+        await context.SaveChangesAsync(ct);
+    }
+}