و همچنین افزونهی سرویس زبان Angular، این خطاها را در همان لحظه نمایش میدهد:
و همچنین افزونهی سرویس زبان Angular، این خطاها را در همان لحظه نمایش میدهد:
- Creating an IdentityServer 5 Project
- Adding JWT Bearer Authentication to an ASP.NET Core 5 API
- Adding Policy-Based Authorisation to an ASP.NET Core 5 API
- Authenticating a .NET 5 Console Application using IdentityServer 5
- Adding API Resources to IdentityServer 5
- Containerising a PostgreSQL 13 Database
- Adding Entity Framework Core 5 to IdentityServer 5
- Adding an OAuth 2.0 Security Scheme to an ASP.NET Core 5 API
- Adding ASP.NET Core 5 Identity to IdentityServer 5
- Seeding an ASP.NET Core 5 Identity Database with Users
- Authenticating an ASP.NET Core 5 Web Application using IdentityServer 5
- Authenticating an Angular 11 Single-Page Application using IdentityServer 5
- Authenticating a Flutter Android Application using IdentityServer 5
- Containerising an IdentityServer 5 Project
- Containerising an IdentityServer 5 Project with API Resources and Clients
npm install -g @angular/cli
ng new HowToKeepAngularSizeSmall
ng serve --open --prod
"@agm/core": "^1.0.0-beta.5", "@angular/flex-layout": "^7.0.0-beta.23", "@angular/material": "^7.3.3", "@angular/platform-browser": "~7.2.0", "@asymmetrik/ngx-leaflet": "^5.0.1", "@ngx-loading-bar/router": "1.3.1", "@ngx-translate/core": "^11.0.1", "@ngx-translate/http-loader": "^4.0.0", "@progress/kendo-angular-buttons": "^4.3.3", "@progress/kendo-angular-dateinputs": "^3.6.0", "@progress/kendo-angular-dialog": "^3.10.1", "@progress/kendo-angular-dropdowns": "^3.5.1", "@progress/kendo-angular-excel-export": "^2.3.0", "@progress/kendo-angular-grid": "^3.13.0", "@progress/kendo-angular-inputs": "^4.2.0", "@progress/kendo-angular-intl": "^1.7.0", "@progress/kendo-angular-l10n": "^1.3.0", "@progress/kendo-angular-layout": "^3.2.0", "@progress/kendo-data-query": "^1.5.0", "@progress/kendo-drawing": "^1.5.8", "@progress/kendo-theme-default": "^3.3.1", "@swimlane/ngx-datatable": "^14.0.0", "angular-calendar": "0.23.7", "angular-tree-component": "7.0.1", "bootstrap": "^3.4.0", "chart.js": "2.7.2", "d3": "4.13.0", "dragula": "3.7.2", "hammerjs": "2.0.8", "intl": "1.2.5", "leaflet": "1.3.1", "moment": "2.21.0", "ng2-charts": "1.6.0", "ng2-dragula": "1.5.0", "ng2-file-upload": "1.3.0", "ng2-validation": "4.2.0", "ngx-perfect-scrollbar": "5.3.5", "ngx-quill": "2.2.0", "screenfull": "3.3.2", "font-awesome": "^4.7.0", "jalali-moment": "^3.3.1", "jquery": "^3.3.1", "ng-snotify": "^4.3.1", "normalize.css": "^8.0.1",
@import "~bootstrap/dist/css/bootstrap.css"; @import "~@progress/kendo-theme-default/scss/all"; @import '@angular/material/prebuilt-themes/pink-bluegrey.css'; @import '~perfect-scrollbar/css/perfect-scrollbar.css'; @import "~ng-snotify/styles/material";
"scripts": [ "node_modules/jquery/dist/jquery.js", "node_modules/bootstrap/dist/js/bootstrap.min.js", "node_modules/hammerjs/hammer.min.js" ],
import { BrowserModule } from '@angular/platform-browser'; import { NgModule } from '@angular/core'; // Import Material import { MatFormFieldModule, MatInputModule, MatButtonModule, MatButtonToggleModule, MatDialogModule, MatIconModule, MatSelectModule, MatToolbarModule, MatDatepickerModule, DateAdapter, MAT_DATE_FORMATS, MAT_DATE_LOCALE, MatTableModule, MatCheckboxModule, MatRadioModule, MatCardModule, fadeInContent, MatListModule, MatProgressBarModule, MatTabsModule, MatSidenavModule, MatSlideToggleModule, MatMenuModule } from '@angular/material'; // Import kendo angular ui import { ButtonsModule } from '@progress/kendo-angular-buttons'; import { GridModule, ExcelModule } from '@progress/kendo-angular-grid'; import { DropDownsModule } from '@progress/kendo-angular-dropdowns'; import { InputsModule } from '@progress/kendo-angular-inputs'; import { DateInputsModule } from '@progress/kendo-angular-dateinputs'; import { DialogsModule } from '@progress/kendo-angular-dialog'; import { RTL } from '@progress/kendo-angular-l10n'; import { LayoutModule } from '@progress/kendo-angular-layout'; import { WindowService, WindowRef, WindowCloseResult, DialogService, DialogRef, DialogCloseResult } from '@progress/kendo-angular-dialog'; import { SnotifyModule, SnotifyService, SnotifyPosition, SnotifyToastConfig, ToastDefaults } from 'ng-snotify'; import { AppRoutingModule } from './app-routing.module'; import { AppComponent } from './app.component'; @NgModule({ declarations: [ AppComponent ], imports: [ BrowserModule, AppRoutingModule, // material MatSidenavModule, MatSlideToggleModule, MatInputModule, MatFormFieldModule, MatButtonModule, MatButtonToggleModule, MatDialogModule, MatIconModule, MatSelectModule, MatToolbarModule, MatDatepickerModule, MatCheckboxModule, MatRadioModule, MatCardModule, MatMenuModule, MatListModule, MatProgressBarModule, MatTabsModule, // kendo-angular ButtonsModule, GridModule, ExcelModule, DropDownsModule, InputsModule, DateInputsModule, DialogsModule, LayoutModule, SnotifyModule, ], providers: [], bootstrap: [AppComponent] }) export class AppModule { }
همانطور که میبینید بدون افزودن کامپوننت جدیدی، حجم خروجی از 222KB به 582KB رسیدهاست. معمولا در هر پروژه نیاز به تعدادی دایرکتیو و سرویس پایه نیز میباشد که کم کم به حجم خروجی صفحات میافزاید. در نظر بگیرید که هنوز هیچ قالب خاصی برای صفحه مورد نظرمان استفاده نشده و به حجم 582KB رسیدهایم. برای نمونه میتوانیم سری به سایت madewithangular.com بزنیم و حجم خروجی تعدادی از سایتهای نوشته شدهی با انگیولار را بررسی کنیم. سایتهای زیر خروجی بالای 1.5MB دارند. همچنین سایتی را که خودم تقریبا یک سال پیش شروع کرده بودم، حجم خروجی آن 2.7MB است:
دلیل بالا رفتن حجم خروجی، اضافه شدن فایلهای JavaScript و style-sheet به bundle اصلی پروژه است. برای مثال حجم فایل main.js را در نمونههای ذکر شده بررسی کنید.
در قسمتهای بعدی، به نحوهی کار صحیح با انگیولار میپردازیم و حجم صفحات را بررسی میکنیم.
>ng g c product/ProductDetail >ng g c product/ProductEdit
import { ProductEditComponent } from './product-edit/product-edit.component'; import { ProductDetailComponent } from './product-detail/product-detail.component'; import { ProductListComponent } from './product-list/product-list.component'; const routes: Routes = [ { path: 'products', component: ProductListComponent }, { path: 'products/:id', component: ProductDetailComponent }, { path: 'products/:id/edit', component: ProductEditComponent } ];
> ng g i product/IProduct
export interface IProduct { id: number; productName: string; productCode: string; }
>npm install angular-in-memory-web-api --save
"dependencies": { "angular-in-memory-web-api": "^0.3.1" },
> ng g cl product/ProductData
import { IProduct } from './iproduct'; import { InMemoryDbService, InMemoryBackendConfig } from 'angular-in-memory-web-api'; export class ProductData implements InMemoryDbService, InMemoryBackendConfig { createDb() { let products: IProduct[] = [ { 'id': 1, 'productName': 'Product 1', 'productCode': '0011' }, { 'id': 2, 'productName': 'Product 2', 'productCode': '0023' }, { 'id': 5, 'productName': 'Product 5', 'productCode': '0048' }, { 'id': 8, 'productName': 'Product 8', 'productCode': '0022' }, { 'id': 10, 'productName': 'Product 10', 'productCode': '0042' } ]; return { products }; } }
import { ProductData } from './product/product-data'; import { InMemoryWebApiModule } from 'angular-in-memory-web-api'; @NgModule({ declarations: [ ], imports: [ BrowserModule, FormsModule, HttpModule, InMemoryWebApiModule.forRoot(ProductData, { delay: 1000 }), ProductModule, UserModule, AppRoutingModule ],
>ng g s product/product -m product/product.module
installing service create src\app\product\product.service.spec.ts create src\app\product\product.service.ts update src\app\product\product.module.ts
import { Injectable } from '@angular/core'; import { Http, Response, Headers, RequestOptions } from '@angular/http'; import { Observable } from 'rxjs/Observable'; import 'rxjs/add/operator/do'; import 'rxjs/add/operator/catch'; import 'rxjs/add/observable/throw'; import 'rxjs/add/operator/map'; import 'rxjs/add/observable/of'; import { IProduct } from './iproduct'; @Injectable() export class ProductService { private baseUrl = 'api/products'; constructor(private http: Http) { } getProducts(): Observable<IProduct[]> { return this.http.get(this.baseUrl) .map(this.extractData) .do(data => console.log('getProducts: ' + JSON.stringify(data))) .catch(this.handleError); } getProduct(id: number): Observable<IProduct> { if (id === 0) { return Observable.of(this.initializeProduct()); }; const url = `${this.baseUrl}/${id}`; return this.http.get(url) .map(this.extractData) .do(data => console.log('getProduct: ' + JSON.stringify(data))) .catch(this.handleError); } deleteProduct(id: number): Observable<Response> { let headers = new Headers({ 'Content-Type': 'application/json' }); let options = new RequestOptions({ headers: headers }); const url = `${this.baseUrl}/${id}`; return this.http.delete(url, options) .do(data => console.log('deleteProduct: ' + JSON.stringify(data))) .catch(this.handleError); } saveProduct(product: IProduct): Observable<IProduct> { let headers = new Headers({ 'Content-Type': 'application/json' }); let options = new RequestOptions({ headers: headers }); if (product.id === 0) { return this.createProduct(product, options); } return this.updateProduct(product, options); } private createProduct(product: IProduct, options: RequestOptions): Observable<IProduct> { product.id = undefined; return this.http.post(this.baseUrl, product, options) .map(this.extractData) .do(data => console.log('createProduct: ' + JSON.stringify(data))) .catch(this.handleError); } private updateProduct(product: IProduct, options: RequestOptions): Observable<IProduct> { const url = `${this.baseUrl}/${product.id}`; return this.http.put(url, product, options) .map(() => product) .do(data => console.log('updateProduct: ' + JSON.stringify(data))) .catch(this.handleError); } private extractData(response: Response) { let body = response.json(); return body.data || {}; } private handleError(error: Response): Observable<any> { console.error(error); return Observable.throw(error.json().error || 'Server error'); } initializeProduct(): IProduct { // Return an initialized object return { id: 0, productName: null, productCode: null }; } }
private baseUrl = 'api/products';
import { ActivatedRoute } from '@angular/router'; import { Component, OnInit } from '@angular/core'; import { ProductService } from './../product.service'; import { IProduct } from './../iproduct'; @Component({ selector: 'app-product-list', templateUrl: './product-list.component.html', styleUrls: ['./product-list.component.css'] }) export class ProductListComponent implements OnInit { pageTitle = 'Product List'; errorMessage: string; products: IProduct[]; constructor(private productService: ProductService, private route: ActivatedRoute) { } ngOnInit(): void { this.productService.getProducts() .subscribe(products => this.products = products, error => this.errorMessage = <any>error); } }
<div class="panel panel-default"> <div class="panel-heading"> {{pageTitle}} </div> <div class="panel-body"> <div class="has-error" *ngIf="errorMessage">{{errorMessage}}</div> <div class="table-responsive"> <table class="table" *ngIf="products && products.length"> <thead> <tr> <th>Product</th> <th>Code</th> </tr> </thead> <tbody> <tr *ngFor="let product of products"> <td><a [routerLink]="['/products', product.id]"> {{product.productName}} </a> </td> <td>{{ product.productCode}}</td> <td> <a class="btn btn-primary" [routerLink]="['/products', product.id, 'edit']"> Edit </a> </td> </tr> </tbody> </table> </div> </div> </div>
<a [routerLink]="['/products', product.id]"> {{product.productName}} </a>
<a class="btn btn-primary" [routerLink]="['/products', product.id, 'edit']"> Edit </a>
<li> <a [routerLink]="['/products', 0, 'edit']">Add Product</a> </li>
saveProduct(product: IProduct): Observable<IProduct> { let headers = new Headers({ 'Content-Type': 'application/json' }); let options = new RequestOptions({ headers: headers }); if (product.id === 0) { return this.createProduct(product, options); } return this.updateProduct(product, options); }
this.router.navigate(['products', this.product.id]);
let id = +this.route.snapshot.params['id'];
{ path: 'products/:id', component: ProductDetailComponent }
<a [routerLink]="['/products', product.id]">{{product.productName}}</a>
this.route.params.subscribe( params => { let id = +params['id']; this.getProduct(id); } );
import { Component, OnInit } from '@angular/core'; import { ActivatedRoute } from '@angular/router'; import { ProductService } from './../product.service'; import { IProduct } from './../iproduct'; @Component({ selector: 'app-product-detail', templateUrl: './product-detail.component.html', styleUrls: ['./product-detail.component.css'] }) export class ProductDetailComponent implements OnInit { pageTitle = 'Product Detail'; product: IProduct; errorMessage: string; constructor(private productService: ProductService, private route: ActivatedRoute) { } ngOnInit(): void { let id = +this.route.snapshot.params['id']; this.getProduct(id); } getProduct(id: number) { this.productService.getProduct(id).subscribe( product => this.product = product, error => this.errorMessage = <any>error); } }
<div class="panel panel-primary" *ngIf="product"> <div class="panel-heading" style="font-size:large"> {{pageTitle + ": " + product.productName}} </div> <div class="panel-body"> <div> Name: {{product.productName}} </div> <div> Code: {{product.productCode}} </div> <div class="has-error" *ngIf="errorMessage">{{errorMessage}}</div> </div> <div class="panel-footer"> <a class="btn btn-default" [routerLink]="['/products']"> <i class="glyphicon glyphicon-chevron-left"></i> Back </a> <a class="btn btn-primary" style="width:80px;margin-left:10px" [routerLink]="['/products', product.id, 'edit']"> Edit </a> </div> </div>
import { FormsModule } from '@angular/forms'; @NgModule({ imports: [ CommonModule, FormsModule, ProductRoutingModule ]
import { Component, OnInit } from '@angular/core'; import { ActivatedRoute, Router } from '@angular/router'; import { ProductService } from './../product.service'; import { IProduct } from './../iproduct'; @Component({ selector: 'app-product-edit', templateUrl: './product-edit.component.html', styleUrls: ['./product-edit.component.css'] }) export class ProductEditComponent implements OnInit { pageTitle = 'Product Edit'; product: IProduct; errorMessage: string; constructor(private productService: ProductService, private route: ActivatedRoute, private router: Router) { } ngOnInit(): void { let id = +this.route.snapshot.params['id']; this.getProduct(id); } getProduct(id: number): void { this.productService.getProduct(id) .subscribe( (product: IProduct) => this.onProductRetrieved(product), (error: any) => this.errorMessage = <any>error ); } onProductRetrieved(product: IProduct): void { this.product = product; if (this.product.id === 0) { this.pageTitle = 'Add Product'; } else { this.pageTitle = `Edit Product: ${this.product.productName}`; } } deleteProduct(): void { if (this.product.id === 0) { // Don't delete, it was never saved. this.onSaveComplete(); } else { if (confirm(`Really delete the product: ${this.product.productName}?`)) { this.productService.deleteProduct(this.product.id) .subscribe( () => this.onSaveComplete(`${this.product.productName} was deleted`), (error: any) => this.errorMessage = <any>error ); } } } saveProduct(): void { if (true === true) { this.productService.saveProduct(this.product) .subscribe( () => this.onSaveComplete(`${this.product.productName} was saved`), (error: any) => this.errorMessage = <any>error ); } else { this.errorMessage = 'Please correct the validation errors.'; } } onSaveComplete(message?: string): void { if (message) { // TODO: show msg } // Navigate back to the product list this.router.navigate(['/products']); } }
<div class="panel panel-primary"> <div class="panel-heading"> {{pageTitle}} </div> <div class="panel-body" *ngIf="product"> <form class="form-horizontal" novalidate (ngSubmit)="saveProduct()" #productForm="ngForm"> <fieldset> <div class="form-group" [ngClass]="{'has-error': (productNameVar.touched || productNameVar.dirty) && !productNameVar.valid }"> <label class="col-md-2 control-label" for="productNameId">Product Name</label> <div class="col-md-8"> <input class="form-control" id="productNameId" type="text" placeholder="Name (required)" required minlength="3" [(ngModel)]=product.productName name="productName" #productNameVar="ngModel" /> <span class="help-block" *ngIf="(productNameVar.touched || productNameVar.dirty) && productNameVar.errors"> <span *ngIf="productNameVar.errors.required"> Product name is required. </span> <span *ngIf="productNameVar.errors.minlength"> Product name must be at least three characters. </span> </span> </div> </div> <div class="form-group" [ngClass]="{'has-error': (productCodeVar.touched || productCodeVar.dirty) && !productCodeVar.valid }"> <label class="col-md-2 control-label" for="productCodeId">Product Code</label> <div class="col-md-8"> <input class="form-control" id="productCodeId" type="text" placeholder="Code (required)" required [(ngModel)]=product.productCode name="productCode" #productCodeVar="ngModel" /> <span class="help-block" *ngIf="(productCodeVar.touched || productCodeVar.dirty) && productCodeVar.errors"> <span *ngIf="productCodeVar.errors.required"> Product code is required. </span> </span> </div> </div> <div class="form-group"> <div class="col-md-4 col-md-offset-2"> <span> <button class="btn btn-primary" type="submit" style="width:80px;margin-right:10px" [disabled]="!productForm.valid" (click)="saveProduct()"> Save </button> </span> <span> <a class="btn btn-default" [routerLink]="['/products']"> Cancel </a> </span> <span> <a class="btn btn-default" (click)="deleteProduct()"> Delete </a> </span> </div> </div> </fieldset> </form> <div class="has-error" *ngIf="errorMessage">{{errorMessage}}</div> </div> </div>
ngOnInit(): void { let id = +this.route.snapshot.params['id']; this.getProduct(id); }
ngOnInit(): void { this.route.params.subscribe( params => { let id = +params['id']; this.getProduct(id); } ); }
// For Angular 4+ let id = +this.route.snapshot.paramMap.get('id'); this.getProduct(id); // OR this.route.paramMap.subscribe(params => { let id = +params['id']; this.getProduct(id); });
{ path: 'products/:name/:code', component: ProductListComponent }
[routerLink]="['/products', productName, productCode]"
{ path: 'products', component: ProductListComponent },
[routerLink]="['/products', {name: productName, code: productCode}]"
http://localhost:4200/products;name=Controller;code=gmg
let name = this.route.snapshot.params['name']; let code = this.route.snapshot.params['code'];
http://localhost:42000/products/5?filterBy=product1
{ path: 'products', component: ProductListComponent}
<a [routerLink] = "['/products', product.id]" [queryParams] = "{ filterBy: 'er', showImage: true }"> {{product.productName}} </a>
this.router.navigate(['/products'], { queryParams: { filterBy: 'er', showImage: true} } );
[preserveQueryParams] = "true"
<a class="btn btn-default" [routerLink]="['/products']" [preserveQueryParams]="true"> <i class="glyphicon glyphicon-chevron-left"></i> Back </a>
this.router.navigate(['/products'], { queryParamsHandling: 'preserve'} );
var filter = this.route.snapshot.queryParams['filterBy'] || ''; var showImage = this.route.snapshot.queryParams['showImage'] === 'true';
>ng g p product/ProductFilter
import { PipeTransform, Pipe } from '@angular/core'; import { IProduct } from './iproduct'; @Pipe({ name: 'productFilter' }) export class ProductFilterPipe implements PipeTransform { transform(value: IProduct[], filterBy: string): IProduct[] { filterBy = filterBy ? filterBy.toLocaleLowerCase() : null; return filterBy ? value.filter((product: IProduct) => product.productName.toLocaleLowerCase().indexOf(filterBy) !== -1) : value; } }
<div class="panel-body"> <div class="row"> <div class="col-md-2">Filter by:</div> <div class="col-md-4"> <input type="text" [(ngModel)]="listFilter" /> </div> </div> <div class="row" *ngIf="listFilter"> <div class="col-md-6"> <h3>Filtered by: {{listFilter}} </h3> </div> </div>
<tr *ngFor="let product of products | productFilter:listFilter"> <td><a [routerLink]="['/products', product.id]" [queryParams]="{filterBy: listFilter}"> {{product.productName}} </a> </td>
@Component({ selector: 'app-product-list', templateUrl: './product-list.component.html', styleUrls: ['./product-list.component.css'] }) export class ProductListComponent implements OnInit { listFilter: string; ngOnInit(): void { this.listFilter = this.route.snapshot.queryParams['filterBy'] || '';