ASP.NET web API HTTP Delete 405 Method Not Allowed

Question

I already worked with web API and had a lot of problems like posting multiple parameters. I upgraded to WebApi2 to use routing attributes and now have problems like:

"message":"The requested resource does not support http method 'DELETE'."

I spent all day searching Stack Overflow and the web to solve the problem:

Removed webdav
In http protocol allow all get,put,post,delete
Added the [HTTPDelete] attribute
Added name="ExtensionlessUrlHandler-Integrated-4.0" path="*." verb="GET,HEAD,POST,DEBUG,PUT,DELETE,PATCH,OPTIONS" type="System.Web.Handlers.TransferRequestHandler" preCondition="integratedMode,runtimeVersionv4.0"
Searched Google for the necessary help here

Can someone please guide me on this?

The problem with giving us a search query (in number 5) is, are we meant to believe that you've accessed all 1 million results that that query returns (at least for me, today)? If not, how does it help us to help you? — Damien_The_Unbeliever, Dec 08 '13 at 06:12
Possible duplicate of [When setting a form's opacity should I use a decimal or double?](http://stackoverflow.com/questions/4/when-setting-a-forms-opacity-should-i-use-a-decimal-or-double) — Alessandro Minneci, Sep 07 '16 at 11:14

score 25 · Answer 1 · edited Apr 01 '17 at 10:05

25

I had the same problem. Adding the below code to your web.config should fix the problem under the system.webserver section:

<system.webServer>
    <validation validateIntegratedModeConfiguration="false"/>
    <modules runAllManagedModulesForAllRequests="true">
        <remove name="WebDAVModule"/>

edited Apr 01 '17 at 10:05

Peter Mortensen

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answered Dec 13 '13 at 15:16

Vinoth

2,419
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3

--> didi it for me: – Legends Mar 28 '15 at 19:03
Worked for me too! Thanks – Sheikh M. Haris Oct 01 '16 at 04:48
Worked for me too, was very odd because the issue occured after the app was working fine on the dev server for weeks. An unrelated update to a different page somehow caused this error, but this fixed it! – cklimowski Nov 27 '19 at 18:21

score 11 · Answer 2 · edited Apr 01 '17 at 10:05

11

I had the same problem, because my controller was like this:

[HttpDelete]
public HttpResponseMessage Delete(string Id)
{
     ....
}

And on the client I used the send the ID as request body:

var url = '/api/upload';
var data = JSON.stringify({ 'Id': id }); // <-- In the body
$.ajax({
    url: url,
    type: 'DELETE',
    data: data, // <-- in the body
    contentType: 'application/json'
})

When I changed the client to use it as URL parameter instead it worked:

var url = '/api/upload/' + id; // <- In the URL
$.ajax({
    url: url,
    type: 'DELETE',
    contentType: 'application/json'
});

edited Apr 01 '17 at 10:05

Peter Mortensen

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21
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answered Jan 09 '14 at 19:02

Fábio Correia

962
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8

I think you need all that its in the above answer plus make the request correctly – ncubica May 16 '14 at 17:42
1

this is the answer – toddmillernyc Jun 25 '17 at 11:09

score 4 · Answer 3 · edited Apr 01 '17 at 10:07

4

The JavaScript code for the DELETE verb must be like this:

$.ajax({
    **url: "/api/SomeController/" + id,**
    type: "DELETE",
    dataType: "json",
    success: function(data, statusText) {
        alert(data);
    },
    error: function(request, textStatus, error) {
        alert(error);
        debugger;
    }
});

Do NOT use something like this,

...
data: {id:id}
...

as when you are using the POST method.

edited Apr 01 '17 at 10:07

Peter Mortensen

30,738
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answered Apr 16 '15 at 08:00

Pavel Kharibin

765
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Pavel Kharibin, you saved my day. Thanks for answere – user2934829 Jul 24 '15 at 06:01

ASP.NET web API HTTP Delete 405 Method Not Allowed

3 Answers3