Jak korzystać z interfejsu API do stron internetowych jako usługi internetowej?

Question

Stworzyłem test ASP.Net Web Api, a teraz chcę wiedzieć, jak mogę go używać jako usługi sieciowej w mojej aplikacji formularzy systemu Windows?

aktualny adres URL jest http://localhost:59682 i kiedy dodać http://localhost:59682 lub http://localhost:59682/api/ lub http://localhost:59682/api/products/ jako odniesienie usług internetowych otrzymuję ten błąd:

To jest mój plik web.config:

<?xml version="1.0" encoding="utf-8"?> 
<!-- 
    For more information on how to configure your ASP.NET application, please visit 
    http://go.microsoft.com/fwlink/?LinkId=169433 
    --> 
<configuration> 
    <configSections> 
    <!-- For more information on Entity Framework configuration, visit http://go.microsoft.com/fwlink/?LinkID=237468 --> 
    <section name="entityFramework" type="System.Data.Entity.Internal.ConfigFile.EntityFrameworkSection, EntityFramework, Version=5.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" requirePermission="false" /> 
    </configSections> 
    <connectionStrings> 
    <add name="DefaultConnection" providerName="System.Data.SqlClient" connectionString="Data Source=(LocalDb)\v11.0;Initial Catalog=aspnet-WebApiLearning-20121206172000;Integrated Security=SSPI;AttachDBFilename=|DataDirectory|\aspnet-WebApiLearning-20121206172000.mdf" /> 
    </connectionStrings> 
    <appSettings> 
    <add key="webpages:Version" value="2.0.0.0" /> 
    <add key="webpages:Enabled" value="false" /> 
    <add key="PreserveLoginUrl" value="true" /> 
    <add key="ClientValidationEnabled" value="true" /> 
    <add key="UnobtrusiveJavaScriptEnabled" value="true" /> 
    </appSettings> 
    <system.web> 
    <compilation debug="true" targetFramework="4.5" /> 
    <httpRuntime targetFramework="4.5" /> 
    <authentication mode="None" /> 
    <pages> 
     <namespaces> 
     <add namespace="System.Web.Helpers" /> 
     <add namespace="System.Web.Mvc" /> 
     <add namespace="System.Web.Mvc.Ajax" /> 
     <add namespace="System.Web.Mvc.Html" /> 
     <add namespace="System.Web.Optimization" /> 
     <add namespace="System.Web.Routing" /> 
     <add namespace="System.Web.WebPages" /> 
     </namespaces> 
    </pages> 
    <profile defaultProvider="DefaultProfileProvider"> 
     <providers> 
     <add name="DefaultProfileProvider" type="System.Web.Providers.DefaultProfileProvider, System.Web.Providers, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" connectionStringName="DefaultConnection" applicationName="/" /> 
     </providers> 
    </profile> 
    <membership defaultProvider="DefaultMembershipProvider"> 
     <providers> 
     <add name="DefaultMembershipProvider" type="System.Web.Providers.DefaultMembershipProvider, System.Web.Providers, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" connectionStringName="DefaultConnection" enablePasswordRetrieval="false" enablePasswordReset="true" requiresQuestionAndAnswer="false" requiresUniqueEmail="false" maxInvalidPasswordAttempts="5" minRequiredPasswordLength="6" minRequiredNonalphanumericCharacters="0" passwordAttemptWindow="10" applicationName="/" /> 
     </providers> 
    </membership> 
    <roleManager defaultProvider="DefaultRoleProvider"> 
     <providers> 
     <add name="DefaultRoleProvider" type="System.Web.Providers.DefaultRoleProvider, System.Web.Providers, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" connectionStringName="DefaultConnection" applicationName="/" /> 
     </providers> 
    </roleManager> 
    <!-- 
      If you are deploying to a cloud environment that has multiple web server instances, 
      you should change session state mode from "InProc" to "Custom". In addition, 
      change the connection string named "DefaultConnection" to connect to an instance 
      of SQL Server (including SQL Azure and SQL Compact) instead of to SQL Server Express. 
     --> 
    <sessionState mode="InProc" customProvider="DefaultSessionProvider"> 
     <providers> 
     <add name="DefaultSessionProvider" type="System.Web.Providers.DefaultSessionStateProvider, System.Web.Providers, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" connectionStringName="DefaultConnection" /> 
     </providers> 
    </sessionState> 
    </system.web> 
    <system.webServer> 
    <validation validateIntegratedModeConfiguration="false" /> 
    <handlers> 
     <remove name="ExtensionlessUrlHandler-ISAPI-4.0_32bit" /> 
     <remove name="ExtensionlessUrlHandler-ISAPI-4.0_64bit" /> 
     <remove name="ExtensionlessUrlHandler-Integrated-4.0" /> 
     <add name="ExtensionlessUrlHandler-ISAPI-4.0_32bit" path="*." verb="GET,HEAD,POST,DEBUG,PUT,DELETE,PATCH,OPTIONS" modules="IsapiModule" scriptProcessor="%windir%\Microsoft.NET\Framework\v4.0.30319\aspnet_isapi.dll" preCondition="classicMode,runtimeVersionv4.0,bitness32" responseBufferLimit="0" /> 
     <add name="ExtensionlessUrlHandler-ISAPI-4.0_64bit" path="*." verb="GET,HEAD,POST,DEBUG,PUT,DELETE,PATCH,OPTIONS" modules="IsapiModule" scriptProcessor="%windir%\Microsoft.NET\Framework64\v4.0.30319\aspnet_isapi.dll" preCondition="classicMode,runtimeVersionv4.0,bitness64" responseBufferLimit="0" /> 
     <add name="ExtensionlessUrlHandler-Integrated-4.0" path="*." verb="GET,HEAD,POST,DEBUG,PUT,DELETE,PATCH,OPTIONS" type="System.Web.Handlers.TransferRequestHandler" preCondition="integratedMode,runtimeVersionv4.0" /> 
    </handlers> 
    </system.webServer> 
    <runtime> 
    <assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1"> 
     <dependentAssembly> 
     <assemblyIdentity name="System.Web.Helpers" publicKeyToken="31bf3856ad364e35" /> 
     <bindingRedirect oldVersion="1.0.0.0-2.0.0.0" newVersion="2.0.0.0" /> 
     </dependentAssembly> 
     <dependentAssembly> 
     <assemblyIdentity name="System.Web.Mvc" publicKeyToken="31bf3856ad364e35" /> 
     <bindingRedirect oldVersion="1.0.0.0-4.0.0.0" newVersion="4.0.0.0" /> 
     </dependentAssembly> 
     <dependentAssembly> 
     <assemblyIdentity name="System.Web.WebPages" publicKeyToken="31bf3856ad364e35" /> 
     <bindingRedirect oldVersion="1.0.0.0-2.0.0.0" newVersion="2.0.0.0" /> 
     </dependentAssembly> 
    </assemblyBinding> 
    </runtime> 
    <entityFramework> 
    <defaultConnectionFactory type="System.Data.Entity.Infrastructure.LocalDbConnectionFactory, EntityFramework"> 
     <parameters> 
     <parameter value="v11.0" /> 
     </parameters> 
    </defaultConnectionFactory> 
    </entityFramework> 
</configuration> 

i to jest mój ProductsController

using System; 
using System.Collections.Generic; 
using System.Linq; 
using System.Net; 
using System.Net.Http; 
using System.Web.Http; 
using WebApiLearning.Models; 

namespace WebApiLearning.Controllers 
{ 
    public class ProductsController : ApiController 
    { 

     Product[] products = new Product[] 
     { 
      new Product { Id = 1, Name = "Tomato Soup", Category = "Groceries", Price = 1.39M }, 
      new Product { Id = 2, Name = "Yo-yo", Category = "Toys", Price = 3.75M }, 
      new Product { Id = 3, Name = "Hammer", Category = "Hardware", Price = 16.99M } 
     }; 

     public IEnumerable<Product> GetAllProducts() 
     { 
      return products; 
     } 

     public Product GetProductById(int id) 
     { 
      var product = products.FirstOrDefault((p) => p.Id == id); 
      if (product == null) 
      { 
       var resp = new HttpResponseMessage(HttpStatusCode.NotFound); 
       throw new HttpResponseException(resp); 
      } 
      return product; 
     } 

     public IEnumerable<Product> GetProductsByCategory(string category) 
     { 
      return products.Where(
       (p) => string.Equals(p.Category, category, 
        StringComparison.OrdinalIgnoreCase)); 
     } 
    } 
} 

a to Product model:

using System; 
using System.Collections.Generic; 
using System.Linq; 
using System.Web; 

namespace WebApiLearning.Models 
{ 
    public class Product 
    { 
     public int Id { get; set; } 
     public string Name { get; set; } 
     public string Category { get; set; } 
     public decimal Price { get; set; } 
    } 
} 

Answer 1

Nie można dodać odwołanie do usług sieci Web API, jak to tylko ramy, które pozwala wystawiać funkcjonalność nad HTTP (w zasadzie można nazwać metodę na kontrolerze).

chciałbym zaproponować Ci zainstalować biblioteki Web API Client

rzucić okiem na poniższy link

http://www.asp.net/web-api/overview/web-api-clients/calling-a-web-api-from-a-net-client