Angular Lazy Loading and Resolve (Route Resolver)
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Lazy loading allows modules to be loaded on demand instead of all at once on initial load to improve performance. It is implemented using loadChildren and routing modules. PreloadingStrategy can be used to preload routes. Resolve allows fetching data before navigating to a route by implementing the Resolve interface and adding it to routes. This improves the user experience by having data ready when the component loads.
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![const oneRoutes: Routes = [
{
path: '',
component: OneComponent,
}
];
@NgModule({
imports: [
RouterModule.forChild(oneRoutes),
],
exports: [
RouterModule,
],
providers: [],
})
export class OneRoutingModule { }
Create Routing
Module](https://image.slidesharecdn.com/angularlazyloadingandresolve-190522044804/85/Angular-Lazy-Loading-and-Resolve-Route-Resolver-3-320.jpg)
![Use loadChildren
const appRoutes: Routes = [
{
path: 'one',
loadChildren: './one/one.module#OneModule'
}
];
@NgModule({
imports: [
RouterModule.forRoot(appRoutes),
],
exports: [
RouterModule,
],
providers: [],
})
export class AppRoutingModule { }](https://image.slidesharecdn.com/angularlazyloadingandresolve-190522044804/85/Angular-Lazy-Loading-and-Resolve-Route-Resolver-4-320.jpg)
![import { RouterModule, Routes,
PreloadAllModules } from '@angular/router';
@NgModule({
imports: [
RouterModule.forRoot(appRoutes, {
preloadingStrategy: PreloadAllModules,
}),
],
exports: [
RouterModule,
],
providers: [],
})
export class AppRoutingModule { }
PreloadAllModules](https://image.slidesharecdn.com/angularlazyloadingandresolve-190522044804/85/Angular-Lazy-Loading-and-Resolve-Route-Resolver-5-320.jpg)
![Add Resolve
Guard to Route
import { Resolver } from
'../resolver/resolver.service';
const appRoutes: Routes = [
{
path: '',
resolve: { resover1: Resolver },
component: OneComponent,
}
];
@NgModule({
providers: [
Resolver
],
})
export class AppRoutingModule { }](https://image.slidesharecdn.com/angularlazyloadingandresolve-190522044804/85/Angular-Lazy-Loading-and-Resolve-Route-Resolver-8-320.jpg)
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- 1. ANGULAR LAZY LOADING AND RESOLVE Akhil K • 15.03.2019
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- 3. const oneRoutes: Routes = [ { path: '', component: OneComponent, } ]; @NgModule({ imports: [ RouterModule.forChild(oneRoutes), ], exports: [ RouterModule, ], providers: [], }) export class OneRoutingModule { } Create Routing Module
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- 9. Queries ?
- 10. Thanks