I am working on building an API with ASP.NET/C#. However, when attempting to make either a PUT or DELETE request, I receive the following error:
"The requested resource does not support http method PUT (or DELETE)"
I realize this issue has been discussed before; however, I have looked over the responses (including this one) to related questions but have yet to find the solution. I have disabled WebDAV and ensured that the verbs are allowed in the ExtensionlessUrlHanlder. The "webserver" portion of my web.config is as follows:
<system.webServer>
<modules>
<remove name="FormsAuthentication" />
<remove name="WebDAVModule"/>
<add name="ErrorLog" type="Elmah.ErrorLogModule, Elmah" preCondition="managedHandler" />
<add name="ErrorMail" type="Elmah.ErrorMailModule, Elmah" preCondition="managedHandler" />
<add name="ErrorFilter" type="Elmah.ErrorFilterModule, Elmah" preCondition="managedHandler" />
</modules>
<httpProtocol>
<customHeaders>
<add name="Access-Control-Allow-Methods" value="GET, POST, PUT, DELETE, OPTIONS" />
</customHeaders>
</httpProtocol>
<handlers>
<remove name="ExtensionlessUrlHandler-Integrated-4.0" />
<remove name="OPTIONSVerbHandler" />
<remove name="WebDAV" />
<remove name="TRACEVerbHandler" />
<add name="ExtensionlessUrlHandler-Integrated-4.0" path="*." verb="*" type="System.Web.Handlers.TransferRequestHandler" preCondition="integratedMode,runtimeVersionv4.0" />
</handlers>
<validation validateIntegratedModeConfiguration="false" />
</system.webServer>
The controller is as follows:
namespace MidamAPI.Controllers
{
[RoutePrefix("SupplyItems")]
public class SupplyItemsController : ApiController
{
UnitOfWork worker = new UnitOfWork();
[Route("")]
[HttpGet]
public string Get()
{
IEnumerable<SupplyItemsDTO> dtoList = Mapper.Map<List<SupplyItem>, List<SupplyItemsDTO>>(worker.SupplyItemRepo.Get().ToList());
return JsonConvert.SerializeObject(dtoList);
}
[Route("{propertyType}")]
public string Get(String propertyType = "BK")
{
IEnumerable<SupplyItemsDTO> dtoList = null;
if (propertyType.Equals("POPEYES", StringComparison.CurrentCultureIgnoreCase))
{dtoList = Mapper.Map<List<PopeyesSupplyItem>, List<SupplyItemsDTO>>(worker.PopeyesItemRepo.Get().ToList());
}
dtoList = Mapper.Map<List<BKSupplyItem>, List<SupplyItemsDTO>>(worker.BKItemRepo.Get().ToList());
return JsonConvert.SerializeObject(dtoList);
}
[Route("{id:int}")]
public string Get(int id)
{
SupplyItemsDTO dto = Mapper.Map<SupplyItem, SupplyItemsDTO>(worker.SupplyItemRepo.GetByID(id));
return JsonConvert.SerializeObject(dto);
}
[Route("")]
[HttpPost]
public HttpResponseMessage Post([FromBody]SupplyItem itm)
{
try
{
worker.SupplyItemRepo.Insert(itm);
worker.Save();
return Request.CreateResponse(HttpStatusCode.OK, itm);
}
catch (Exception ex)
{
return Request.CreateResponse(HttpStatusCode.BadRequest, ex);
}
}
[Route("")]
[HttpDelete]
public HttpResponseMessage Delete(int id)
{
try
{
SupplyItem itm = worker.SupplyItemRepo.GetByID(id);
worker.SupplyItemRepo.Delete(itm);
worker.Save();
return Request.CreateResponse(HttpStatusCode.OK, itm);
}
catch(Exception ex)
{
return Request.CreateResponse(HttpStatusCode.BadRequest, ex);
}
}
[Route("")]
[HttpPut]
public HttpResponseMessage Put(int id, SupplyItem item) {
try
{
item.ID = id;
worker.SupplyItemRepo.Update(item);
return Request.CreateResponse(HttpStatusCode.OK, item);
}
catch(Exception ex)
{
return Request.CreateResponse(HttpStatusCode.BadRequest, ex);
}
}
}
}
The GET and POST calls work as expected. I do not want to alter the applicationhost.config file, really modify the web server in any way (since this is my development machine), or use headers that might represent a security vulnerability.
The response headers:
Access-Control-Allow-Credentials →true
Access-Control-Allow-Headers →Origin, X-Requested-With, Content-Type, Accept, X-Token,Authorization
Access-Control-Allow-Methods →GET, POST, PUT, DELETE, OPTIONS
Access-Control-Allow-Methods →GET, POST, PUT, DELETE, OPTIONS
Access-Control-Allow-Origin →*
Allow →GET
Cache-Control →no-cache
Content-Length →72
Content-Type →application/json; charset=utf-8
Date →Tue, 10 Oct 2017 13:39:03 GMT
Expires →-1
Pragma →no-cache
Server →Microsoft-IIS/8.0
X-AspNet-Version →4.0.30319
X-Powered-By →ASP.NET
X-SourceFiles →=?UTF-8?B?QzpcVmlzdWFsIFN0dWRpbyBQcm9qZWN0c1xNaWRhbWVyaWNhQVBJXE1pZGFtQVBJXHN1cHBseWl0ZW1zXDQ1NA==?=
The request in the IIS logs:
2017-10-10 13:27:35 ::1 PUT /supplyitems/454 - 57263 - ::1 PostmanRuntime/6.3.2 - 405 0 0 0
My routing:
config.Routes.MapHttpRoute(
name: "DefaultAPI",
routeTemplate: "{controller}/{id}",
defaults: new { id = RouteParameter.Optional }
);
Any advice is appreciated. I am using IIS Express. Thanks.
