Introduce EF

Program.cs

@@ -1,4 +1,5 @@
 using GerbilManager.Repositories;
+using Microsoft.EntityFrameworkCore;
 
 var builder = WebApplication.CreateBuilder(args);
 
@@ -11,8 +12,11 @@ builder.Services.AddSwaggerGen();
 
 builder.Services.AddSingleton<IGerbilRepository, InMemGerbilRepository>();
 
+builder.Services.AddDbContext<ApplicationContext>(opts => opts.UseSqlServer(Configuration.GetConnectionString("sqlConnection")));
+
 var app = builder.Build();
 
+
 // Configure the HTTP request pipeline.
 if (app.Environment.IsDevelopment())
 {