angular2 学习笔记 ( app initialize 初始化 )

@NgModule({
    imports: [
        StoogesModule,
        IdentityRoutingModule
    ],
    exports: [],
    declarations: [LoginComponent],
    providers: [
        IdentityService,        
        {
            provide: APP_INITIALIZER,
            useFactory: IdentityInitializeFactory,　//这里不要用匿名函数, webpack 会报错
            deps: [IdentityService],
            multi: true
        },
        AdminAuthorizeGuard,
        ShopAuthorizeGuard
    ],
})
export class IdentityModule { }

export function IdentityInitializeFactory (identityService: IdentityService)
{
    return async () => { 
        await identityService.getUserByCookies(); 
    }
}