array data not being sent to API controller c#

Question

I am working on angularJS application where I am making post call to send data to API controller everything is being sent to controller apart from array of data.

Here is code to make controller call

this.UpdateJobWithDeadlines = function (JobData) {
    var request = $http({
        method: "POST",
        url: "/api/JobAPI/UpdateJobWithDeadlines",
        data: JSON.stringify(JobData)
    });
    return request;
}

I have checked the JobData object, it's value (indented for easier reading) is:

{
    "jobNum":null,
    "jobName":"fgfg",
    /* snip */
    "StatusDatas":[
        {
            "scId":0,
            "JobNum":9746.030148450296,
            "StatusComment":"03-03-2017 : 1",
            "scTimeStamp":"2017-03-03T15:47:48.174Z",
            "IsNew":0
        },
        {
            "scId":0,
            "JobNum":8527.946898255957,
            "StatusComment":"03-03-2017 : 3",
            "scTimeStamp":"2017-03-03T15:47:49.459Z",
            "IsNew":0
        }
    ],
    /* SNIP */
    "telephone":"9"
}

The controller method signature is as below:

public int UpdateJobWithDeadlines(JobDataWithDeadlines JobData)

And the JobDataWithDeadlines class is as below:

public class JobDataWithDeadlines
{
    public int? jobNum;
    public string jobName;
    /* snip */
    public List<StatusData> StatusDatas;
}

public class StatusData
{
    public int scId;
    public int JobNum;

    public string StatusComment;

    public string scTimeStamp;

    public bool IsNew;
}

But I am getting an empty list for the StatusDatas property of the controller method parameter.

Is that a copy/paste error? telephone only has a single set of quotes on the right. — Igor
– Igor, Commented Mar 3, 2017 at 16:09
It's usually better to test your api separately from the client. Use rest console or one of the other chrome addons/extensions. Once you know whats required to get your API working... then you'll know it's a JS issue if you have trouble calling it from JS — Steve's a D
– Steve's a D, Commented Mar 3, 2017 at 16:14

Igor · Accepted Answer · 2017-03-03 16:22:28Z

1

The problem is your fields, they all need to be properties instead. The deserialization and serialization for json.net will not bind to fields (out of the box anyways, it is possible with additional configuration / custom mapping code).

public class JobDataWithDeadlines
{
    public int? jobNum {get;set;}
    public string jobName {get;set;}
    /* snip */
    public List<StatusData> StatusDatas {get;set;}
}

public class StatusData
{
    public int scId {get;set;}
    public double JobNum {get;set;}
    public string StatusComment {get;set;}
    public string scTimeStamp {get;set;}
    public bool IsNew {get;set;}
}

Also you should specify the content-type in the http header of the request. In this case set it to application/json

edited Mar 3, 2017 at 16:22

answered Mar 3, 2017 at 16:14

Igor

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Comments

Geeky Guy · Accepted Answer · 2017-03-03 16:12:27Z

1

You have to add the following properties to the object you pass to the $http method:

this.UpdateJobWithDeadlines = function (JobData) {
    var request = $http({
        method: "POST",
        contentType: "application/json",
        dataType: "json",
        url: "/api/JobAPI/UpdateJobWithDeadlines",
        data: JSON.stringify(JobData)
    });
    return request;
}

You can optionally specify a charset to the content type, i.e.:

contentType: 'application/json; charset=utf-8'

Some people also suggest adding traditional: true to it, but in my experience that is not always what causes this problem.

answered Mar 3, 2017 at 16:12

Geeky Guy

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