I'm trying to send a post request from an Angular front-end to a ASP.net backend.
Get requests work fine.
When I send:
this.http.post("http://localhost:3000/api/Cards", "some data", httpOptions).subscribe(res => this.display(res));
To the ASP.NET API I'm running from VS2017 I get:
ERROR {…}error: Object { Message: "The requested resource does not support http method 'POST'." }headers: Object { normalizedNames: Map(0), lazyUpdate: null, lazyInit: lazyInit() }message: "Http failure response for http://localhost:3000/api/Cards: 405 Method Not Allowed"name: "HttpErrorResponse"ok: falsestatus: 405statusText: "Method Not Allowed"url: "http://localhost:3000/api/Cards": Object { constructor: HttpErrorResponse() } core.js:12584
For Angular, "httpOptions" consists of:
const httpOptions = { headers: new HttpHeaders({ 'Content-Type': 'text/plain', 'accept' : 'text/plain' })};
My WebApi.Config:
<configuration>
<appSettings>
<add key="webpages:Version" value="3.0.0.0" />
<add key="webpages:Enabled" value="false" />
<add key="ClientValidationEnabled" value="true" />
<add key="UnobtrusiveJavaScriptEnabled" value="true" />
</appSettings>
<system.web>
<compilation debug="true" targetFramework="4.6.1" />
<httpRuntime targetFramework="4.6.1" />
<httpModules>
<add name="ApplicationInsightsWebTracking" type="Microsoft.ApplicationInsights.Web.ApplicationInsightsHttpModule, Microsoft.AI.Web" />
</httpModules>
</system.web>
<system.webServer>
<httpProtocol>
<customHeaders>
<add name="Access-Control-Allow-Headers" value="Content-type"/>
<add name="Access-Control-Allow-Methods" value="POST"/>
<add name="Access-Control-Allow-Origin" value="*"/>
</customHeaders>
</httpProtocol>
<handlers>
<remove name="WebDAV"/>
<remove name="UrlRoutingModule-4.0" />
<add name="UrlRoutingHandler" preCondition="integratedMode" verb="*" path="UrlRouting.axd" type="System.Web.HttpForbiddenHandler, System.Web,Version=2.0.0.0, Culture=neutral,PublicKeyToken=<REMOVED>"/>
<add name="UrlRoutingModule-4.0" path="*" verb="*" type="System.Web.Routing.UrlRoutingModule" preCondition="" />
<remove name="ExtensionlessUrlHandler-Integrated-4.0" />
<remove name="OPTIONSVerbHandler" />
<remove name="TRACEVerbHandler" />
<!--<add name="ExtensionlessUrlHandler-Integrated-4.0" path="*." verb="*" type="System.Web.Handlers.TransferRequestHandler" preCondition="integratedMode,runtimeVersionv4.0" />-->
</handlers>
<modules runAllManagedModulesForAllRequests="true">
<remove name="TelemetryCorrelationHttpModule" />
<add name="TelemetryCorrelationHttpModule" type="Microsoft.AspNet.TelemetryCorrelation.TelemetryCorrelationHttpModule, Microsoft.AspNet.TelemetryCorrelation" preCondition="integratedMode,managedHandler" />
<remove name="ApplicationInsightsWebTracking" />
<add name="ApplicationInsightsWebTracking" type="Microsoft.ApplicationInsights.Web.ApplicationInsightsHttpModule, Microsoft.AI.Web" preCondition="managedHandler" />
<remove name="WebDAVModule"/>
<remove name="UrlRoutingModule"/>
<add name="UrlRoutingModule" type="System.Web.Routing.UrlRoutingModule, System.Web, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" />
</modules>
<validation validateIntegratedModeConfiguration="false" />
</system.webServer>
<runtime>
<assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">
<dependentAssembly>
<assemblyIdentity name="Antlr3.Runtime" publicKeyToken="eb42632606e9261f" />
<bindingRedirect oldVersion="0.0.0.0-3.5.0.2" newVersion="3.5.0.2" />
</dependentAssembly>
<dependentAssembly>
<assemblyIdentity name="System.Diagnostics.DiagnosticSource" publicKeyToken="cc7b13ffcd2ddd51" />
<bindingRedirect oldVersion="0.0.0.0-4.0.2.1" newVersion="4.0.2.1" />
</dependentAssembly>
<dependentAssembly>
<assemblyIdentity name="Newtonsoft.Json" culture="neutral" publicKeyToken="30ad4fe6b2a6aeed" />
<bindingRedirect oldVersion="0.0.0.0-11.0.0.0" newVersion="11.0.0.0" />
</dependentAssembly>
<dependentAssembly>
<assemblyIdentity name="System.Web.Optimization" publicKeyToken="31bf3856ad364e35" />
<bindingRedirect oldVersion="1.0.0.0-1.1.0.0" newVersion="1.1.0.0" />
</dependentAssembly>
<dependentAssembly>
<assemblyIdentity name="WebGrease" publicKeyToken="31bf3856ad364e35" />
<bindingRedirect oldVersion="0.0.0.0-1.6.5135.21930" newVersion="1.6.5135.21930" />
</dependentAssembly>
<dependentAssembly>
<assemblyIdentity name="System.Web.Helpers" publicKeyToken="31bf3856ad364e35" />
<bindingRedirect oldVersion="1.0.0.0-3.0.0.0" newVersion="3.0.0.0" />
</dependentAssembly>
<dependentAssembly>
<assemblyIdentity name="System.Web.WebPages" publicKeyToken="31bf3856ad364e35" />
<bindingRedirect oldVersion="1.0.0.0-3.0.0.0" newVersion="3.0.0.0" />
</dependentAssembly>
<dependentAssembly>
<assemblyIdentity name="System.Web.Mvc" publicKeyToken="31bf3856ad364e35" />
<bindingRedirect oldVersion="1.0.0.0-5.2.4.0" newVersion="5.2.4.0" />
</dependentAssembly>
<dependentAssembly>
<assemblyIdentity name="System.Web.Http" publicKeyToken="31bf3856ad364e35" culture="neutral" />
<bindingRedirect oldVersion="0.0.0.0-5.2.6.0" newVersion="5.2.6.0" />
</dependentAssembly>
<dependentAssembly>
<assemblyIdentity name="System.Net.Http.Formatting" publicKeyToken="31bf3856ad364e35" culture="neutral" />
<bindingRedirect oldVersion="0.0.0.0-5.2.6.0" newVersion="5.2.6.0" />
</dependentAssembly>
</assemblyBinding>
</runtime>
<system.codedom>
<compilers>
<compiler language="c#;cs;csharp" extension=".cs" type="Microsoft.CodeDom.Providers.DotNetCompilerPlatform.CSharpCodeProvider, Microsoft.CodeDom.Providers.DotNetCompilerPlatform, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" warningLevel="4" compilerOptions="/langversion:default /nowarn:1659;1699;1701" />
<compiler language="vb;vbs;visualbasic;vbscript" extension=".vb" type="Microsoft.CodeDom.Providers.DotNetCompilerPlatform.VBCodeProvider, Microsoft.CodeDom.Providers.DotNetCompilerPlatform, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" warningLevel="4" compilerOptions="/langversion:default /nowarn:41008 /define:_MYTYPE=\"Web\" /optionInfer+" />
</compilers>
</system.codedom>
</configuration>
It may look very messy because I've tried solutions from lots of different Stack Overflow questions and asp.net forum posts. Nothing seems to get rid of the 405 error.
WebApiConfig.cs:
public static class WebApiConfig
{
public static void Register(HttpConfiguration config)
{
// Web API configuration and services
config.EnableCors();
// Web API routes
config.MapHttpAttributeRoutes();
config.Routes.MapHttpRoute(
name: "DefaultApi",
routeTemplate: "api/{controller}/{id}",
defaults: new { id = RouteParameter.Optional }
);
}
}
Controller:
[EnableCors(origins: "*", headers: "*", methods: "*")]
public class CardsController : ApiController
{
// Test data set
private Card[] cards = new Card[]
{
new Card {Id = 1, Suit = "D", Value = "7"},
new Card {Id = 1, Suit = "D", Value = "K"},
new Card {Id = 1, Suit = "S", Value = "A"},
new Card {Id = 1, Suit = "H", Value = "2"},
new Card {Id = 1, Suit = "S", Value = "10"}
};
// GET: api/Cards
[ResponseType(typeof(IEnumerable<Card>))]
public IEnumerable<Card> Get()
{
return cards;
}
// GET: api/Cards/5
public string Get(int id)
{
return "value";
}
// POST: api/Cards
public HttpResponseMessage Post(string value)
{
return Request.CreateResponse("You found me!");
}
// PUT: api/Cards/5
public void Put(int id, [FromBody]string value)
{
}
// DELETE: api/Cards/5
public void Delete(int id)
{
}
}
Let me know if I left anything important out.
[HttpPost]above yourPostaction method. – Gabriel Lucithis.http.post("http://localhost:3000/api/Cards", { value: "some data" }, httpOptions).subscribe(res => this.display(res));Since you are posting, it's probably serializing "some data" into an object that doesn't match your string value on the endpoint. – jonsca