DELETE multiple IDs with WebAPI Delete Endpoint?

Question

My webAPI solution currently works if I send a single id to the delete endpoint:

DELETE /api/object/1

With:

    [HttpDelete]
    public HttpResponseMessage DeleteFolder(int id)
    {
    // Do stuff
    }

In my client application I have a UI that allows for multiple deletes - right now it's just calling this endpoint in a loop for each one of the ids selected, which isn't super performant. I'd like to be able to send an array of Ids to the Delete method in this case... how can this be achieved?

This might help you: stackoverflow.com/questions/9981330/… — Claudio Redi
– Claudio Redi, Commented Jul 7, 2013 at 20:42

Darin Dimitrov · Accepted Answer · 2013-07-07 20:49:27Z

5

[HttpDelete]
public HttpResponseMessage DeleteFolder(int[] ids)
{
    // Do stuff
}

and then you could send the following HTTP request:

DELETE /api/somecontroller HTTP/1.1
Accept: application/json
Content-Length: 7
Content-Type: application/json
Host: localhost:52996
Connection: close

[1,2,3]

answered Jul 7, 2013 at 20:49

Darin Dimitrov

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5 Comments

SB2055 Over a year ago

Thanks Darin. Are you sticking the array into the body here?

Darrel Miller Over a year ago

Unfortunately the HTTP spec says DELETE bodies are meaningless so you really would need to put the id list as a URI param.

SB2055 Over a year ago

OK - that's why I was asking. I've been looking for an example of sticking data into a URI param with AJAX but I'm coming up short because I don't know what to look for. Would you mind pointing me in the right direction?

SB2055 Over a year ago

@DarrelMiller forgot to ping you above

Darrel Miller Over a year ago

@SB2055 I would just use id=2,3,4. However, I don't really use the web API model binding stuff so, I'm not sure how to get it to magically transform into an array. I'd just pull it as a string from RequestURI.ParseQueryString() and do String.Split in the controller action.

ckross01 · Accepted Answer · 2013-07-07 20:45:35Z

5

[HttpDelete]
public HttpResponseMessage Folder([FromUri] int[] ids)
{
     //logic
}

api call

DELETE /api/Folder?ids=1&ids=2

answered Jul 7, 2013 at 20:45

ckross01

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3 Comments

Kiran Over a year ago

FYI...Support for model binding collections from Uri was a problem in MVC 4 Web API, which was fixed later in MVC 5 Web API.

Darrel Miller Over a year ago

@KiranChalla I'm sure you mean ASP.NET Web API 4 and ASP.NET Web API 5, right? ;-)

user3038092 Over a year ago

@DarrelMiller That's not how they're called.

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