Passing JSON to WEB API Controller

Question

I have this model for an MVC WEB API controller. What will be the corresponding JSON to match this model structure?

namespace CarEvaluator.Models
{
    [DataContract]
    public class Record
    {
        [DataMember]
        public List<Boolean> CHits { get; set; }

        [DataMember]
        public List<Boolean> MHits { get; set; }
    }
}




public void Post(Record record)
{

}

Lars Anundskås · Accepted Answer · 2013-10-28 18:45:51Z

1

Structure:

{"CHits":[true,false],"MHits":[true,false]}

Example:

var postObject = new Object();

// Initialize CHits and MHits as arrays
postObject.CHits = [];
postObject.MHits = [];

// push some items into the arrays
postObject.CHits.push(true);
postObject.CHits.push(false);
postObject.MHits.push(true);
postObject.MHits.push(false);

// serialize data to post
// this is what you set as data property in for instance jquery ajax
$.ajax({
    //other params, content type etc
    type: 'POST',
    data: JSON.stringify(postObject),
    ...
    });

if your parameter is null, you should try to add the [FromBody] attribute and decorate the method with httppost

[HttpPost]
public void Post([FromBody]Record record)
{

}

answered Oct 28, 2013 at 18:45

Lars Anundskås

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2 Comments

user1615362 Over a year ago

I am using this JSON {"CHits":[true,false],"MHits":[true,false]} in fiddler composer, and the controller does not get the data, shows NULL. Any idea?

user1615362 Over a year ago

OK, I forgot to pass the content negotiation stuff for the JSON. After adding the HTTP headers: Accept: application/json, text/javascript, /; q=0.01 Content-Type: application/json; charset=UTF-8 All works OK

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