diff --git a/src/HeartTrackAPI/AppBootstrap.cs b/src/HeartTrackAPI/AppBootstrap.cs
index ab8952e..2f75fb0 100644
--- a/src/HeartTrackAPI/AppBootstrap.cs
+++ b/src/HeartTrackAPI/AppBootstrap.cs
@@ -58,8 +58,9 @@ public class AppBootstrap(IConfiguration configuration)
                 Console.WriteLine("======================");
                 Console.WriteLine($"server={HOST};port={PORT};database={DATABASE};user={USERNAME};password={PASSWORD}");
                 Console.WriteLine(connectionString);
-
-                services.AddSingleton<IDataManager>( new DbDataManager(connectionString));
+                services.AddDbContext<HeartTrackContext>(options =>
+                    options.UseSqlite(connectionString), ServiceLifetime.Singleton);
+                services.AddSingleton<IDataManager>(provider => new DbDataManager(provider.GetRequiredService<HeartTrackContext>()));
 
                 break;
             default:
diff --git a/src/Model2Entities/DbDataManager.cs b/src/Model2Entities/DbDataManager.cs
index fd7661e..6384b43 100644
--- a/src/Model2Entities/DbDataManager.cs
+++ b/src/Model2Entities/DbDataManager.cs
@@ -18,11 +18,8 @@ public partial class DbDataManager: IDataManager
         DbContext = dbContext;
         Console.WriteLine("Contexttttttttt");
         Console.WriteLine($"Database created Context: {DbContext.Database.EnsureCreated()}"); 
-        DbContext.Database.EnsureCreated();
-        Console.WriteLine($"Database created Context: {DbContext.Database.EnsureCreated()}"); 
         ActivityRepo = new ActivityRepository(this);
         UserRepo = new UserRepository(this);
-        DbContext.Database.EnsureCreated();
         ActivityMapper.Reset();
         // Faire pour les autres reset() des autres mappers
     }
@@ -30,14 +27,12 @@ public partial class DbDataManager: IDataManager
     public DbDataManager(string dbPlatformPath)
         : this(new HeartTrackContext(dbPlatformPath))
     {
-        DbContext.Database.EnsureCreated();
         Console.WriteLine($"Database created String: {DbContext.Database.EnsureCreated()}");    }
 
 
     public DbDataManager()
     {
         DbContext = new HeartTrackContext();
-        DbContext.Database.EnsureCreated();
         Console.WriteLine($"Database created None: {DbContext.Database.EnsureCreated()}"); 
         ActivityRepo = new ActivityRepository(this);
         UserRepo= new UserRepository(this);