SQLite extension method for DI configuration

src/Databases/Sqlite/src/LangChain.Databases.Sqlite.csproj

@@ -12,6 +12,7 @@
 
     <ItemGroup>
         <PackageReference Include="Microsoft.Data.Sqlite.Core" />
+        <PackageReference Include="Microsoft.Extensions.DependencyInjection.Abstractions" />
         <PackageReference Include="Microsoft.SemanticKernel.Connectors.Memory.Sqlite" />
     </ItemGroup>
 

src/Databases/Sqlite/src/ServeExtensions.cs

@@ -0,0 +1,17 @@
+using System;
+using System.Collections.Generic;
+using System.Text;
+using LangChain.Serve.Abstractions;
+using Microsoft.Extensions.DependencyInjection;
+
+namespace LangChain.Databases.Sqlite
+{
+    public static class ServeExtensions
+    {
+        public static IServiceCollection AddSQLiteConversationRepository(this IServiceCollection services, string connectionString)
+        {
+            services.AddSingleton<IConversationRepository>(new SQLiteConversationRepository(connectionString));
+            return services;
+        }
+    }
+}