From d68f060e669df49c25d1bfd55a2e6969e943508a Mon Sep 17 00:00:00 2001
From: Loretta <jozsef.b@aycode.com>
Date: Sat, 4 Apr 2026 23:22:53 +0200
Subject: [PATCH] Add AcBinaryHubProtocol to SignalR for binary transport

Registered custom AcBinaryHubProtocol as a singleton IHubProtocol
in PluginNopStartup.cs to enable efficient binary messaging
(via AcBinarySerializer) and eliminate JSON/Base64 overhead.
Updated SIGNALR_ENDPOINTS.md to document the new protocol,
noting WebSocket (TransferFormat.Binary) requirement and
affected hubs (DevAdminSignalRHub, LoggerSignalRHub).
Explicitly set StatefulReconnectBufferSize to 30 MB in both
code and documentation.
---
 Nop.Plugin.Misc.AIPlugin/Infrastructure/PluginNopStartup.cs | 4 ++++
 Nop.Plugin.Misc.AIPlugin/docs/SIGNALR_ENDPOINTS.md          | 4 ++++
 2 files changed, 8 insertions(+)

diff --git a/Nop.Plugin.Misc.AIPlugin/Infrastructure/PluginNopStartup.cs b/Nop.Plugin.Misc.AIPlugin/Infrastructure/PluginNopStartup.cs
index 3a93a69..214a87c 100644
--- a/Nop.Plugin.Misc.AIPlugin/Infrastructure/PluginNopStartup.cs
+++ b/Nop.Plugin.Misc.AIPlugin/Infrastructure/PluginNopStartup.cs
@@ -1,6 +1,7 @@
 //using AyCode.Core.Loggers;
 
 using AyCode.Core.Loggers;
+using AyCode.Services.SignalRs;
 using DevExpress.AspNetCore;
 using FruitBank.Common;
 using FruitBank.Common.Interfaces;
@@ -13,6 +14,7 @@ using Microsoft.AspNetCore.Builder;
 using Microsoft.AspNetCore.Http.Connections;
 using Microsoft.AspNetCore.Mvc.Razor;
 using Microsoft.AspNetCore.SignalR;
+using Microsoft.AspNetCore.SignalR.Protocol;
 using Microsoft.Extensions.Configuration;
 using Microsoft.Extensions.DependencyInjection;
 using Nop.Core.Domain.Orders;
@@ -149,6 +151,8 @@ public class PluginNopStartup : INopStartup
             hubOptions.StatefulReconnectBufferSize = 30_000_000; //30MB; //default: 100,000 bytes;
             //hubOptions.HandshakeTimeout = TimeSpan.FromSeconds(15); //default timeout is 15 seconds
         });
+
+        services.AddSingleton<IHubProtocol>(new AcBinaryHubProtocol());
     }
 
     /// <summary>
diff --git a/Nop.Plugin.Misc.AIPlugin/docs/SIGNALR_ENDPOINTS.md b/Nop.Plugin.Misc.AIPlugin/docs/SIGNALR_ENDPOINTS.md
index 6217ca0..2cb5dde 100644
--- a/Nop.Plugin.Misc.AIPlugin/docs/SIGNALR_ENDPOINTS.md
+++ b/Nop.Plugin.Misc.AIPlugin/docs/SIGNALR_ENDPOINTS.md
@@ -16,6 +16,10 @@ Configured in `PluginNopStartup`:
 | ClientTimeoutInterval | 30 seconds |
 | MaximumReceiveMessageSize | 30 MB |
 | EnableDetailedErrors | true |
+| StatefulReconnectBufferSize | 30 MB |
+| **HubProtocol** | **`AcBinaryHubProtocol`** (singleton `IHubProtocol`) |
+
+**Wire protocol:** `AcBinaryHubProtocol` (`AyCode.Services.SignalRs`, from `AyCode.Services.dll`) — custom binary `IHubProtocol` using `AcBinarySerializer`. Eliminates JSON+Base64 overhead. Requires `TransferFormat.Binary` → WebSocket transport only. Protocol name: `"acbinary"`. Registered as `services.AddSingleton<IHubProtocol>(new AcBinaryHubProtocol())` after `AddSignalR()`.
 
 Hubs registered: `DevAdminSignalRHub`, `LoggerSignalRHub` (from AyCode.Core.Server).