MongoDB + PostgreSQL Injection

backend/API/Controllers/ChatController.cs

@@ -1,9 +1,16 @@
-using Microsoft.AspNetCore.Mvc;
+using Infrastructure.Services.MongoDB;
+using Microsoft.AspNetCore.Mvc;
 
 namespace HealthcareManager.API.Controllers
 {
     public class ChatController : BaseApiController
     {
+        private readonly MongoDbService _mongoDbService;
+
+        public ChatController(MongoDbService mongoDbService)
+        {
+            _mongoDbService = mongoDbService;
+        }
 
     }
 }