idk something about efcore

SurveyBackend/SurveyBackend.Infrastructure/Data/DataContext.cs

@@ -0,0 +1,15 @@
+using Microsoft.EntityFrameworkCore;
+using SurveyBackend.Core.Models;
+
+namespace SurveyBackend.Infrastructure.Data;
+
+public class DataContext : DbContext
+{
+    public DbSet<User> Users { get; set; }
+    public DbSet<Group> Groups { get; set; }
+
+    public DataContext(DbContextOptions<DataContext> options) : base(options)
+    {
+        Database.EnsureCreated();
+    }
+}