Sending Large JSON object string by ajax post

Asked Dec 18 '19 at 18:58

Active Dec 18 '19 at 19:48

Viewed 740 times

I have an MVC project and I'm trying to send a JSON object that has a large string in it to my controller. My ajax call fails instantly, not even getting to the controller, and gives me a 500 error. I've made modifications to my web.config to increase JSON serialization and content length. This does work when the string is smaller, but when it gets large it errors instantly. Below is my code:

Web Config Settings:

<scripting>
  <webServices>
    <jsonSerialization maxJsonLength="2147483644"/>
  </webServices>
</scripting>
<httpRuntime targetFramework="4.5" maxRequestLength="1048576"/>
<add key="aspnet:MaxJsonDeserializerMembers" value="2147483647"/>

-Client side code

var Response = {
    TemplateResponse: 'SUPER DUPER LONG STRING',
    ID: '1'
    };

$.ajax({
        url: SaveResponseUrl,
        cache: false,
        type: 'POST',
        contentType: 'application/json; charset=utf-8',
        data: ko.toJSON(Response),
        error: function (err) {
        showErrorDialog(err.responseJSON.message);
}});

-Controller code

public JsonResult SaveResponse(ResponseModel response)
{
   vm.SaveResponse(response);
   return Json("", JsonRequestBehavior.AllowGet);
}

How can I send this large JSON to my controller?

edited Dec 18 '19 at 19:48

asked Dec 18 '19 at 18:58

Matt Copperson

Does the 500 error provide any message or details? – Dalton Dec 18 '19 at 19:16
nope. Just 500 Internal Server Error. – Matt Copperson Dec 18 '19 at 19:26
What makes you think the issue is tied to the size of the posted data? – Dalton Dec 18 '19 at 19:31
This works when the data is smaller. – Matt Copperson Dec 18 '19 at 19:39
Check this: [https://stackoverflow.com/questions/41167770/mvc-5-increase-max-json-length-in-post-request](https://stackoverflow.com/questions/41167770/mvc-5-increase-max-json-length-in-post-request) – Hadi Samadzad Dec 18 '19 at 22:37

Sending Large JSON object string by ajax post

0 Answers0