Method not allowed doing a post in WebAPI

Question

I have a controller defined as follows

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

namespace MissingClinics.Controllers
{
    [RoutePrefix("api/appointment")]
    public class AppointmentController : ApiController
    {
        [HttpPost]
        public IHttpActionResult GetMissingKeys([FromBody]String MRNList)
        {
            return Ok();
        }
    }
}

and the following JavaScript calls that page.

            try {
                $.ajax({
                    type: 'POST',
                    url: '/api/Appointment/GetMissingKeys',
                    data: $('#mrnList').val(),
                    dataType: 'text'
                }).done(function () {
                    alert('done!');
                }).fail(function (Status, errorThrown) {
                    alert('Error: ' + Status.status + ' - ' + Status.statusText);
                }).always(function () {
                    alert('All done or not');
                });
            }
            catch (e) {
                alert(e);
            }

WebApi.config is the following

namespace MissingClinics
{
    public static class WebApiConfig
    {
        public static void Register(HttpConfiguration config)
        {
            // Web API configuration and services

            // Web API routes
            config.MapHttpAttributeRoutes();

            config.Routes.MapHttpRoute(
                name: "DefaultApi",
                routeTemplate: "api/{controller}/{id}",
                defaults: new { id = RouteParameter.Optional }
            );
        }
    }
}

RouteConfig.cs

namespace MissingClinics
{
    public class RouteConfig
    {
        public static void RegisterRoutes(RouteCollection routes)
        {
            routes.IgnoreRoute("{resource}.axd/{*pathInfo}");

            routes.MapRoute(
                name: "Default",
                url: "{controller}/{action}/{id}",
                defaults: new { controller = "Home", action = "Index", id = UrlParameter.Optional }
            );
        }
    }
}

Now because I am going to be passing a fair amount of data I need to pass it in the body (rather than as part of the Url).

But in the Call it is returning Error 405 - Method not allowed. But from what I can see jquery should be making a post request and the controller is accepting a post - so why the Method not allowed?

is there HTML in your request data , if so use [AllowHtml] Attribute in you param. — Kishore Sahasranaman
– Kishore Sahasranaman, Commented Nov 3, 2015 at 16:42
not sure if attribute routing will default to your method name...Try [Route("GetMissingKeys")] on your method. — Jonesopolis
– Jonesopolis, Commented Nov 3, 2015 at 16:44
@PaulSChapman Did you try excluding the dataType: 'text' attribute or specifying other types like 'application/json' etc? Also did you try hitting the api from some debugging tool like Fiddler or Advanced Rest Client for Chrome browser and see what is going on? — Siva Gopal
– Siva Gopal, Commented Nov 3, 2015 at 17:11
This is utter speculation, but it might be that WebAPI is getting it's conventions confused because your Method is prefixed with Get. I'd have to check the source to be sure. — MrBliz
– MrBliz, Commented Nov 3, 2015 at 17:46

Andrii Tsok · Accepted Answer · 2015-11-03 17:12:17Z

1

With the default routing template, Web API uses the HTTP method to select the action. However, you can also create a route where the action name is included in the URI:

routes.MapHttpRoute(
    name: "ActionApi",
    routeTemplate: "api/{controller}/{action}/{id}",
    defaults: new { id = RouteParameter.Optional }
);

Routing instructions

edited Nov 3, 2015 at 17:12

answered Nov 3, 2015 at 17:02

Andrii Tsok

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3 Comments

Paul S Chapman Over a year ago

I've tried that - even reversing the order of the Route and HttpPost - even tried AcceptVerb

Andrii Tsok Over a year ago

@PaulSChapman could you please add your Startup class implementation to your main topic ? Will try to figure out what is wrong.

Andrii Tsok Over a year ago

@PaulSChapman i've changed and added some additional information to my answer. In the end of article you can find information about: Routing by Action Name. Take a look to this.

MrBliz · Accepted Answer · 2015-11-03 17:27:00Z

1

Been a while since i've used jquery but

Shouldn't this

data: $('#mrnList').val(),

be this

data : {mrnList: $('#mrnList').val()}, //Or MrnList depending on your jsonformatting options

Also the dataType should be 'json' i think.

Have you tried adding [Route("GetMissingKeys")] to your method?

edited Nov 3, 2015 at 17:27

answered Nov 3, 2015 at 17:20

MrBliz

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Comments

programmer.zheng · Accepted Answer · 2015-11-04 03:27:44Z

0

Have you changed the default route from api/{action} to api/{controller}/{action}/{id}?

ASP.NET WEB API select action with request HTTP method,there are two ways below:

1.Change the web api default route

WebApiConfig.cs

config.Routes.MapHttpRoute( name: "DefaultApi", routeTemplate: "api/{controller}/{action}/{id}", defaults: new { id = RouteParameter.Optional } );
With this ,you do not need to change you html file.

2.Change your action name

public IHttpActionResult Post([FromBody]String MRNList)

and call javascript like this :

$.ajax("/api/Appointment", {type:"POST", data:$("").val() ... }

edited Nov 4, 2015 at 3:27

answered Nov 3, 2015 at 16:59

programmer.zheng

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1 Comment

Paul S Chapman Over a year ago

Not sure what you meant but did try changing the url in the RouteConfig.cs but that did not seem to make a difference

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