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I have an issue similar to ASP.NET MVC 4 RC Web API Parameter Binding Issue, but I'm trying to solve it by using the [FromBody] attribute.

Fiddler reports the following request (excluding irrelevant bits like User Agent String)

PUT http://localhost:82/api/account/shoppinglistitems HTTP/1.1
Host: localhost:82
Connection: keep-alive
Content-Length: 11
Origin: http://localhost:3000
Content-Type: application/x-www-form-urlencoded
Accept: application/json, text/javascript, */*; q=0.01

query=apple

My controller action is

[HttpPut]
public ShoppingListItemWebModel CreateShoppingListItem([FromBody]string query) {
    // query is null
}

I could wrap the parameter in a complex type, but that seems like a hack to fix the issue. Or I could put the query in the URI, but that doesn't fit the pattern of the rest of the API. Is it possible to do it this way? If so, where is my mistake?

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1  
The title says POST, but the question says PUT. Just a little misleading. – vbullinger Mar 28 at 15:18

1 Answer

up vote 13 down vote accepted

change your request to be

PUT http://localhost:82/api/account/shoppinglistitems HTTP/1.1
Host: localhost:82
Connection: keep-alive
Content-Length: 11
Origin: http://localhost:3000
Content-Type: application/x-www-form-urlencoded
Accept: application/json, text/javascript, */*; q=0.01

=apple

notice the lack of "query"

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Any idea how to extract multiple strings from the body? – Jeow Li Huan Jul 17 '12 at 9:47
1  
not possible, you'd have to use complex type. Mike Stall has a great blog on that I recommend it to anyone interested in Web API model binding blogs.msdn.com/b/jmstall/archive/2012/04/16/… – Filip W Jul 17 '12 at 9:55
of course you still use [FromUri] to pass multiple simple type parameters – Filip W Jul 17 '12 at 9:57
This is not possible other than how Filip shows. This is by design although it might change since a lot of people seem to have asked for it. Original discussion here. – Aliostad Jul 17 '12 at 12:13
2  
Are you serious??? This is by design? Not intuitive at all. – JohnnyO Sep 30 '12 at 5:01
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