api v2.0

backend/Infrastructure/Services/PostgreSQL/BasePostgreSQLRepository.cs

@@ -12,7 +12,7 @@ public class BasePostgreSQLRepository<T> where T : class
         _context = context;
     }
 
-    public async Task<T> GetByIdAsync(Guid id)
+    public async Task<T?> GetByIdAsync(Guid id)
     {
         return await _context.Set<T>().FindAsync(id);
     }
@@ -40,4 +40,4 @@ public class BasePostgreSQLRepository<T> where T : class
         _context.Set<T>().Remove(entity);
         await _context.SaveChangesAsync();
     }
-}
+}