private async static Task InitContext(IHost host) { using var scope = host.Services.CreateScope(); var services = scope.ServiceProvider; try { var dbContext = services.GetRequiredService <AppDBContext>(); var roleManager = services.GetRequiredService <RoleManager <IdentityRole <int> > >(); var userManager = services.GetRequiredService <UserManager <User> >(); var configuration = services.GetRequiredService <IConfiguration>(); await AppDBContextInit.InitDbContext(dbContext); await AppDBContextInit.InitRoles(roleManager); await AppDBContextInit.InitUsers(userManager, configuration); } catch (Exception ex) { var logger = services.GetRequiredService <ILogger <Program> >(); logger.LogError(ex, "An error occured during migration"); } }