Introduction to ASP.NET Core part 15: starting with tag helpers
Introduction to ASP.NET Core part 14: the view start and the layout files
Introduction to ASP.NET Core part 13: the view imports file
Introduction to ASP.NET Core part 12: data annotation of view models
Introduction to ASP.NET Core part 11: inserting a new Book in a form
Introduction to ASP.NET Core part 10: the details page and more on view models
Introduction to ASP.NET Core part 9: MVC continued with routing
Introduction to ASP.NET Core part 8: MVC continued with controller actions and our first view
Introduction to ASP.NET Core part 7: starting with MVC
Introduction to ASP.NET Core part 6: environments and settings
Introduction to ASP.NET Core part 5: static files
Introduction to ASP.NET Core part 4: middleware and the component pipeline
Introduction to ASP.NET Core part 3: the configuration file
Introduction to ASP.NET Core part 2: dependencies and dependency injection
Introduction to ASP.NET Core part 1: anatomy of an empty web project

اهداف:

موارد زیر اهداف و مزایای استفاده از Routing Service است:

»Service versioning

»Content-based routing scenario 

»Service partitioning 

»Protocol bridging 

هر کدام از موارد بالا در طی پست‌های جداگانه شرح داده خواهند شد.

بررسی یک مثال:

دو Contract به صورت زیر تعریف می‌کنیم:

 [ServiceContract]
    public interface ICalculatorV1
    {
        [OperationContract]
        int Add(int a, int b);
    }

[ServiceContract]
    public interface ICalculatorV2
    {
        [OperationContract]
        int Sub(int a, int b);
    }

public class CalculatorV1 : ICalculatorV1
    {
        public int Add(int a, int b)
        {
            return a + b;
        }
    }

public class CalculatorV2 : ICalculatorV2
    {
        public int Sub(int a, int b)
        {
            return a - b;
        }
    }

system.serviceModel>
    <services>
      <service name="WCFRoutingSample.CalculatorV1">
        <host>
          <baseAddresses>
            <add baseAddress = "http://localhost:8732/CalculatorServiceV1/" />
          </baseAddresses>
        </host>

        <endpoint address ="" binding="basicHttpBinding" contract="WCFRoutingSample.ICalculatorV1">

          <identity>
            <dns value="localhost"/>
          </identity>
        </endpoint>

        <endpoint address="mex" binding="mexHttpBinding" contract="IMetadataExchange"/>
      </service>
      <service name="WCFRoutingSample.CalculatorV2">
        <host>
          <baseAddresses>
            <add baseAddress = "http://localhost:8733/CalculatorServiceV2/" />
          </baseAddresses>
        </host>
 
        <endpoint address ="" binding="basicHttpBinding" contract="WCFRoutingSample.ICalculatorV2">
 
          <identity>
            <dns value="localhost"/>
          </identity>
        </endpoint>
 
        <endpoint address="mex" binding="mexHttpBinding" contract="IMetadataExchange"/>
      </service>
    </services>
    <behaviors>
      <serviceBehaviors>
        <behavior>
          <serviceMetadata httpGetEnabled="True"/>
          <serviceDebug includeExceptionDetailInFaults="False" />
        </behavior>
      </serviceBehaviors>
    </behaviors>
  </system.serviceModel>

class Program
    {
        static void Main(string[] args)
        {
            var host = new ServiceHost(typeof(RoutingService));
            host.Open();
            Console.WriteLine("Server is running.");
            Console.ReadLine();
            host.Close();
        }
    }

<system.serviceModel>
    <behaviors>
      <serviceBehaviors>
        <behavior name="routingBehv">
          <routing routeOnHeadersOnly="false" filterTableName="filters"/>
          <serviceDebug includeExceptionDetailInFaults="true"/>
          <serviceMetadata httpGetEnabled="true"/>
        </behavior>
      </serviceBehaviors>
    </behaviors>
    <routing>
      <filters>
        <filter name="CalV1ServiceFilter" filterType="EndpointName" filterData="Calv1Service"/>
        <filter name="CalV2ServiceFilter" filterType="EndpointName" filterData="Calv2Service"/>
      </filters>
      <filterTables>
        <filterTable name="filters">
          <add filterName="CalV1ServiceFilter" endpointName="Calv1Service" />
          <add filterName="CalV2ServiceFilter" endpointName="Calv2Service"/>
        </filterTable>
      </filterTables>
    </routing>
    <services>
      <!-- Routing service with endpoint definition -->
      <service name="System.ServiceModel.Routing.RoutingService"
               behaviorConfiguration="routingBehv">
        <endpoint
          address="/Calv1"
          binding="basicHttpBinding"
          contract="System.ServiceModel.Routing.IRequestReplyRouter"
          name="Calv1Service"/>
        <endpoint
         address="/Calv2"
         binding="basicHttpBinding"
         contract="System.ServiceModel.Routing.IRequestReplyRouter"
         name="Calv2Service"/>

        <host>
          <baseAddresses>
            <add baseAddress="http://localhost:9000/CalculatorService"/>
          </baseAddresses>
        </host>
      </service>
    </services>
    <client>
      <endpoint address="http://localhost:8732/CalculatorServiceV1"
                binding="basicHttpBinding"
                contract="*"
                name="Calv1Service"/>
      <endpoint address="http://localhost:8733/CalculatorServiceV2"
                binding="basicHttpBinding"
                contract="*"
                name="Calv2Service"/>
    </client>

  </system.serviceModel>

using System.Collections;
using System.Web;
using System.Web.UI;
using StructureMap;

namespace DI05.Core
{
    /// <summary>
    /// تسهیل در کار تزریق خودکار وابستگی‌ها در سطح فرم‌ها و یوزرکنترل‌ها
    /// </summary>
    public class StructureMapModule : IHttpModule
    {
        public void Dispose()
        { }

        public void Init(HttpApplication app)
        {
            app.PreRequestHandlerExecute += (sender, e) =>
            {
                var page = HttpContext.Current.Handler as Page; // The Page handler
                if (page == null)
                    return;

                WireUpThePage(page);
                WireUpAllUserControls(page);
            };
        }

        private static void WireUpAllUserControls(Page page)
        {
            // در اینجا هم کار سیم کشی یوزر کنترل‌ها انجام می‌شود
            page.InitComplete += (initSender, evt) =>
            {
                var thisPage = (Page)initSender;
                foreach (Control ctrl in getControlTree(thisPage))
                {
                    // فقط یوزر کنترل‌ها بررسی شدند
                    // اگر نیاز است سایر کنترل‌های قرار گرفته روی فرم هم بررسی شوند شرط را حذف کنید
                    if (ctrl is UserControl)
                    {
                        ObjectFactory.BuildUp(ctrl);
                    }
                }
            };
        }

        private static void WireUpThePage(Page page)
        {
            ObjectFactory.BuildUp(page); // برقراری خودکار سیم کشی‌ها در سطح صفحات
        }

        private static IEnumerable getControlTree(Control root)
        {
            foreach (Control child in root.Controls)
            {
                yield return child;
                foreach (Control ctrl in getControlTree(child))
                {
                    yield return ctrl;
                }
            }
        }
    }
}

<?xml version="1.0"?>
<configuration>
  <system.web>
    <compilation debug="true" targetFramework="4.0" />

    <httpModules>
      <add name="StructureMapModule" type="DI05.Core.StructureMapModule"/>
    </httpModules>
  </system.web>

  <system.webServer>    
    <modules runAllManagedModulesForAllRequests="true">
      <add name="StructureMapModule" type="DI05.Core.StructureMapModule"/>
    </modules>
    <validation validateIntegratedModeConfiguration="false" />
  </system.webServer>
</configuration>

namespace DI05.Services
{
    public interface IUsersService
    {
        string GetUserEmail(int id);
    }
}


namespace DI05.Services
{
    public class UsersService: IUsersService
    {
        public string GetUserEmail(int id)
        {
            //فقط جهت بررسی تزریق وابستگی‌ها
            return "test@test.com";
        }
    }
}

using System;
using StructureMap;
using DI05.Services;

namespace DI05
{
    public class Global : System.Web.HttpApplication
    {
        private static void initStructureMap()
        {
            ObjectFactory.Initialize(x =>
            {
                x.For<IUsersService>().Use<UsersService>();

                x.SetAllProperties(y =>
                {
                    y.OfType<IUsersService>();
                });
            });
        }

        protected void Application_Start(object sender, EventArgs e)
        {
            initStructureMap();
        }

        void Application_EndRequest(object sender, EventArgs e)
        {
            ObjectFactory.ReleaseAndDisposeAllHttpScopedObjects();
        }
    }
}

using System;
using DI05.Services;

namespace DI05
{
    public partial class Default : System.Web.UI.Page
    {
        public IUsersService UsersService { set; get; }

        protected void Page_Load(object sender, EventArgs e)
        {
            lblEmail1.Text = string.Format("From Default Page: {0}", UsersService.GetUserEmail(1));
        }
    }
}

PM> Install-Package structuremap.web

 >ng g c Dashboard/CallProtectedApi

import { CallProtectedApiComponent } from "./call-protected-api/call-protected-api.component";

const routes: Routes = [
  {
    path: "callProtectedApi",
    component: CallProtectedApiComponent,
    data: {
      permission: {
        permittedRoles: ["Admin", "User"],
        deniedRoles: null
      } as AuthGuardPermission
    },
    canActivate: [AuthGuard]
  }
];

<li *ngIf="isLoggedIn" routerLinkActive="active">
        <a [routerLink]="['/callProtectedApi']">‍‍Call Protected Api</a>
</li>

import { Component, OnInit } from "@angular/core";
import { AuthService } from "../../core/services/auth.service";

@Component({
  selector: "app-call-protected-api",
  templateUrl: "./call-protected-api.component.html",
  styleUrls: ["./call-protected-api.component.css"]
})
export class CallProtectedApiComponent implements OnInit {

  isAdmin = false;
  isUser = false;
  result: any;

  constructor(private authService: AuthService) { }

  ngOnInit() {
    this.isAdmin = this.authService.isAuthUserInRole("Admin");
    this.isUser = this.authService.isAuthUserInRole("User");
  }

  callMyProtectedAdminApiController() {
  }

  callMyProtectedApiController() {
  }
}

<button *ngIf="isAdmin" (click)="callMyProtectedAdminApiController()">
  Call Protected Admin API [Authorize(Roles = "Admin")]
</button>

<button *ngIf="isAdmin || isUser" (click)="callMyProtectedApiController()">
  Call Protected API ([Authorize])
</button>

<div *ngIf="result">
  <pre>{{result | json}}</pre>
</div>

  getBearerAuthHeader(): HttpHeaders {
    return new HttpHeaders({
      "Content-Type": "application/json",
      "Authorization": `Bearer ${this.getRawAuthToken(AuthTokenType.AccessToken)}`
    });
  }

import { Injectable } from "@angular/core";
import { HttpEvent, HttpInterceptor, HttpHandler, HttpRequest } from "@angular/common/http";
import { Observable } from "rxjs/Observable";

import { AuthService, AuthTokenType } from "./auth.service";

@Injectable()
export class AuthInterceptor implements HttpInterceptor {

  constructor(private authService: AuthService) { }

  intercept(request: HttpRequest<any>, next: HttpHandler): Observable<HttpEvent<any>> {

    const accessToken = this.authService.getRawAuthToken(AuthTokenType.AccessToken);
    if (accessToken) {
      request = request.clone({
        headers: request.headers.set("Authorization", `Bearer ${accessToken}`)
      });
    }

    return next.handle(request);
  }
}

import { HTTP_INTERCEPTORS } from "@angular/common/http";

import { AuthInterceptor } from "./services/auth.interceptor";

@NgModule({
  providers: [
    {
      provide: HTTP_INTERCEPTORS,
      useClass: AuthInterceptor,
      multi: true
    }
  ]
})
export class CoreModule {}

compiler.js:19514 Uncaught Error: Provider parse errors:
Cannot instantiate cyclic dependency! InjectionToken_HTTP_INTERCEPTORS ("[ERROR ->]"): in NgModule AppModule in ./AppModule@-1:-1

import { Injector } from "@angular/core";

  constructor(private injector: Injector) { }

  intercept(request: HttpRequest<any>, next: HttpHandler): Observable<HttpEvent<any>> {
    const authService = this.injector.get(AuthService);

@Injectable()
export class AuthInterceptor implements HttpInterceptor {

  constructor(private injector: Injector) { }

  intercept(request: HttpRequest<any>, next: HttpHandler): Observable<HttpEvent<any>> {
    const authService = this.injector.get(AuthService);
    const accessToken = authService.getRawAuthToken(AuthTokenType.AccessToken);
    if (accessToken) {
      request = request.clone({
        headers: request.headers.set("Authorization", `Bearer ${accessToken}`)
      });
    }

    return next.handle(request);
  }
}

  constructor(
    private authService: AuthService,
    private httpClient: HttpClient,
    @Inject(APP_CONFIG) private appConfig: IAppConfig,
  ) { }

  callMyProtectedAdminApiController() {
    this.httpClient
      .get(`${this.appConfig.apiEndpoint}/MyProtectedAdminApi`)
      .map(response => response || {})
      .catch((error: HttpErrorResponse) => Observable.throw(error))
      .subscribe(result => {
        this.result = result;
      });
  }

  callMyProtectedApiController() {
    this.httpClient
      .get(`${this.appConfig.apiEndpoint}/MyProtectedApi`)
      .map(response => response || {})
      .catch((error: HttpErrorResponse) => Observable.throw(error))
      .subscribe(result => {
        this.result = result;
      });
  }

    return next.handle(request)
      .catch((error: any, caught: Observable<HttpEvent<any>>) => {
        if (error.status === 401 || error.status === 403) {
          this.router.navigate(["/accessDenied"]);
        }
        return Observable.throw(error);
      });

@Injectable()
export class AuthInterceptor implements HttpInterceptor {

  constructor(
    private injector: Injector,
    private router: Router) { }

  intercept(request: HttpRequest<any>, next: HttpHandler): Observable<HttpEvent<any>> {
    const authService = this.injector.get(AuthService);
    const accessToken = authService.getRawAuthToken(AuthTokenType.AccessToken);
    if (accessToken) {
      request = request.clone({
        headers: request.headers.set("Authorization", `Bearer ${accessToken}`)
      });
      return next.handle(request)
        .catch((error: any, caught: Observable<HttpEvent<any>>) => {
          if (error.status === 401 || error.status === 403) {
            this.router.navigate(["/accessDenied"]);
          }
          return Observable.throw(error);
        });
    } else {
      // login page
      return next.handle(request);
    }
  }
}

using ASPNETCore2JwtAuthentication.Services;
using Microsoft.AspNetCore.Authorization;
using Microsoft.AspNetCore.Cors;
using Microsoft.AspNetCore.Mvc;

namespace ASPNETCore2JwtAuthentication.WebApp.Controllers
{
    [Route("api/[controller]")]
    [EnableCors("CorsPolicy")]
    [Authorize(Policy = CustomRoles.Editor)]
    public class MyProtectedEditorsApiController : Controller
    {
        public IActionResult Get()
        {
            return Ok(new
            {
                Id = 1,
                Title = "Hello from My Protected Editors Controller! [Authorize(Policy = CustomRoles.Editor)]",
                Username = this.User.Identity.Name
            });
        }
    }
}

  callMyProtectedEditorsApiController() {
    this.httpClient
      .get(`${this.appConfig.apiEndpoint}/MyProtectedEditorsApi`)
      .map(response => response || {})
      .catch((error: HttpErrorResponse) => Observable.throw(error))
      .subscribe(result => {
        this.result = result;
      });
  }

 App = Ember.Application.create();

App.Router.map(function() {
    this.resource('accounts'); // takes us to /accounts
    this.resource('gallery'); // takes us to /gallery
});

App.Router.map(function() {
    this.resource('news', function() {
        this.resource('images', function () { // takes us to /news/images
            this.route('add');// takes us to /news/images/add
        });
    });
});

App.SiteLink = Ember.Object.extend({});
App.SiteLink.reopenClass({
    findAll: function() {
        var links = [];
        //… $.getJSON …

        return links;
    }
});

App.GalleryRoute = Ember.Route.extend({
    model: function() {
        return App.SiteLink.findAll();
    }
});

App.GalleryRoute = Ember.Route.extend({
    setupController: function(controller) {
        controller.set('content', ['red', 'yellow', 'blue']);
    }
});

App.GalleryController = Ember.Controller.extend({
    search: '',
    content: ['red', 'yellow', 'blue'],
    query: function() {
        var data = this.get('search');
        this.transitionToRoute('search', { query: data });
    }
});

<script type="text/x-handlebars" data-template-name="sayhello">
    Hello,
    <strong>{{firstName}} {{lastName}}</strong>!
</script>

<script type="text/x-handlebars" data-template-name="sayhello">
    Hello,
    <strong>{{firstName}} {{lastName}}</strong>!
 
    {{#if person}}
    Welcome back,
    <strong>{{person.firstName}} {{person.lastName}}</strong>!
    {{/if}}
 
    <ul>
        {{#each friend in friends}}
        <li>
            {{friend.name}}
        </li>
        {{/each}}
    </ul>
 
    <img {{bindAttr src="link.url" }} />
    {{#linkTo ''about}}About{{/linkTo}}
</script>

 this.resource('employees');

 PM> Install-Package EmberJS

<script src="Scripts/jquery-2.1.1.js" type="text/javascript"></script>
<script src="Scripts/handlebars.js" type="text/javascript"></script>
<script src="Scripts/ember.js" type="text/javascript"></script>
<script src="Scripts/app.js" type="text/javascript"></script>

App = Ember.Application.create();
App.IndexRoute = Ember.Route.extend({
    setupController:function(controller) {
        controller.set('content', ['red', 'yellow', 'blue']);
    }
});

App.Router.map(function() {
    this.resource('application'); 
    this.resource('index');
});

<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
    <title></title>
    <script src="Scripts/jquery-2.1.1.js" type="text/javascript"></script>
    <script src="Scripts/handlebars.js" type="text/javascript"></script>
    <script src="Scripts/ember.js" type="text/javascript"></script>
    <script src="Scripts/app.js" type="text/javascript"></script>
</head>
<body>
    <script type="text/x-handlebars" data-template-name="index">
        Hello,
        <strong>Welcome to Ember.js</strong>!
        <ul>
            {{#each item in content}}
            <li>
                {{item}}
            </li>
            {{/each}}
        </ul>
    </script>
</body>
</html>

<body>
    <script type="text/x-handlebars" data-template-name="application">
        <h1>Header</h1>
        {{outlet}}
    </script>

namespace EmberJS02.Models
{
    public class User
    {
        public int Id { set; get; }
        public string UserName { set; get; }
        public string Email { set; get; }
    }
}

using System.Collections.Generic;
using System.Web.Http;
using EmberJS02.Models;
 
namespace EmberJS02.Controllers
{
    public class UsersController : ApiController
    {
        // GET api/<controller>
        public IEnumerable<User> Get()
        {
            return UsersDataSource.UsersList;
        }
    }
}

using System;
using System.Web.Http;
using System.Web.Routing;
 
namespace EmberJS02
{
    public class Global : System.Web.HttpApplication
    { 
        protected void Application_Start(object sender, EventArgs e)
        {
            RouteTable.Routes.MapHttpRoute(
               name: "DefaultApi",
               routeTemplate: "api/{controller}/{id}",
               defaults: new { id = RouteParameter.Optional }
               );
        }
    }
}

 PM> Install-Package EmberJS

App = Ember.Application.create();
App.IndexRoute = Ember.Route.extend({
    setupController:function(controller) {
        controller.set('content', ['red', 'yellow', 'blue']);
    }
});

<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
    <title></title>
    <script src="Scripts/jquery-2.1.1.js" type="text/javascript"></script>
    <script src="Scripts/handlebars.js" type="text/javascript"></script>
    <script src="Scripts/ember.js" type="text/javascript"></script>
    <script src="Scripts/app.js" type="text/javascript"></script>
</head>
<body>
    <script type="text/x-handlebars" data-template-name="application">
        <h1>Header</h1>
        {{outlet}}
    </script>
    <script type="text/x-handlebars" data-template-name="index">
        Hello,
        <strong>Welcome to Ember.js</strong>!
        <ul>
            {{#each item in content}}
            <li>
                {{item}}
            </li>
            {{/each}}
        </ul>
    </script>
</body>
</html>

App.Router.map(function() {
    this.resource('about');
});

<script type="text/x-handlebars" data-template-name="about">
    <h2>Our about page</h2>
</script>

<script type="text/x-handlebars" data-template-name="application">
    <h1>Ember Demo App</h1>
    <ul class="nav">
        <li>{{#linkTo 'index'}}Home{{/linkTo}}</li>
        <li>{{#linkTo 'about'}}About{{/linkTo}}</li>
    </ul>
    {{outlet}}
</script>

App.Router.map(function() {
    this.resource('about');
    this.resource('users');
});

App.UsersLink = Ember.Object.extend({});
App.UsersLink.reopenClass({
    findAll: function () {
        var users = [];
        $.getJSON('/api/users').then(function(response) {
            response.forEach(function(item) {
                users.pushObject(App.UsersLink.create(item));
            });
        });
        return users;
    }
});

App.UsersRoute = Ember.Route.extend({
    model: function() {
        return App.UsersLink.findAll();
    }
});
 
App.UsersController = Ember.ObjectController.extend({
    customHeader : 'Our Users List'
});

<script type="text/x-handlebars" data-template-name="users">
    <h2>{{customHeader}}</h2>
    <ul>
        {{#each item in model}}
        <li>
            {{item.Id}}-{{item.UserName}} ({{item.Email}})
        </li>
        {{/each}}
    </ul>
</script>

Blazor Fundamentals Tutorial

Blazor server-side vs client-side (WebAssembly) | What should you choose?
What are Razor Components? | Blazor Tutorial 1
Dependency Injection | Blazor Tutorial 2
What are Blazor Layouts? | Blazor Tutorial 3
Routing and Navigation | Blazor Tutorial 4
JS Interop: Calling JavaScript from C# | Blazor Tutorial 5
JS Interop: Calling C# methods from JavaScript | Blazor Tutorial 6
Creating Forms with Validation | Blazor Tutorial 7
How to add Authentication in Server-side Blazor | Blazor Tutorial 8
Authorization in Server-Side Blazor | Blazor Tutorial 9
How to use HTML5 Web Storage in Blazor | Blazor Tutorial 10
Managing Blazor state using Redux | Blazor Tutorial 11
Creating a desktop application using Blazor and Electron | Blazor Tutorial 12
Deploying Server-Side Blazor in Azure with SignalR service | Blazor Tutorial 13
Building cross platform mobile apps with Blazor (Experimental)