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  • Alex Brown 129 posts 620 karma points
    Sep 22, 2017 @ 07:38
    Alex Brown
    1

    Posting JSON to an API Controller

    Hi

    I've seen numerous topics about people struggling to post an object to a controller, but none of them have really helped.

    I've got a JSON object which has two arrays, one isn't populated so I expect it to be null (which it is):

    "{"locationTypes":["Location Type"],"countries":[]}"

    I'm using $.post to send this to the controller.

    var getResults = function (selectedFilters, onSucess, onError) {
    $.post("/Umbraco/Api/Contact/GetResults", JSON.stringify(selectedFilters)).then(onSucess, onError);
}

    Controller method:

        [System.Web.Http.HttpPost]
    public ContactPageViewModel GetResults(ContactSelection selectedFilters)
    {
        return new ContactPageViewModel();
    }

    ContactSelection object:

    public class ContactSelection
{
    public List<string> LocationTypes { get; set; }
    public List<string> Countries { get; set; }
}

    The controller is hit by the post, however selectedFilters' properties are both null.

    Any help would be appreciated, thanks.

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  • Alex Brown 129 posts 620 karma points
    Sep 22, 2017 @ 07:46
    Alex Brown
    1

    Alright just got it working. For some odd reason I need to use this implementation of post:

        $.ajax({
        type: "POST",
        url: "/umbraco/api/Contact/GetResults/",
        contentType: "application/json; charsect=utf-8",
        dataType: "json",
        data: JSON.stringify(selectedFilters)
    }).then(onSucess, onError)

    I'd really like to know why though. If someone could answer that then I'll hand them a cookie.

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  • Duncan Bannister 5 posts 76 karma points notactivated
    Oct 06, 2017 @ 11:38
    Duncan Bannister
    0

    You are able to use the $.post method.

    If you specify your parameter name as "selectedFilters" in the Controller. You will have to set the variable name in the $.post function. 

    $.post("/Umbraco/Api/Contact/GetResults", { 
   selectedFilters : JSON.stringify(selectedFilters) 
}, function(data) {
    console.log(data);
});

    Hope this works.

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