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Send data from ajax to server with get method – Jquery ajax

This topic is not duplicate with others my problem is in get method
i have this data:

var things = [
   { "name": "n1" },
   { "name": "n2" }
];

Ajax call:

$.ajax({
    url: /controller/GetList,
    data: JSON.stringify(things),
    contentType: "application/json; charset=utf-8",
    dataType: "json"
});

Server side:

public JsonResult GetList(
    List<Thing> things) => Json("OK");

public class Thing
{
    public string name { get; set; }
}

Now when i call ajax with method: “POST” and get data with [FromBody] in serverside everything is ok, but if i want to call ajax with GET method things in server side is null or empty, WHY?

I try this:

data: JSON.stringify({ things: things })
traditional: true

But it does not work

My project is in Asp.net Core 3.1

Tags:

3

Answers


  1. 0

    You should avoid sending data (in the request body) for GET requests, because it could have complications. Many services, don’t expect GET requests to have a body and, thus they just ignore it.

    If it is not a lot of data you could try sending it in the query string, but I suggest just using POST

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  2. 0

    Simply specify the method to GET:

    $.ajax({
    type : "GET",
    url: /controller/GetList,
    data: JSON.stringify(things),
    contentType: "application/json; charset=utf-8",
    dataType: "json"
});
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  3. 0

    If you indeed want to make GET HTTP request and pass data on JavaScript client, you can try to pass them through querystring, like below.

    var par = "";

$.each(things, function (i,val) {
    par += "&things[" + i + "].name=" + val.name;
});

$.ajax({
    url: "/controller/GetList?" + par.substring(1, par.length),
    //data: JSON.stringify(things),
    contentType: "application/json; charset=utf-8",
    dataType: "json"
});

    Action GetList

    public JsonResult GetList([FromQuery]List<Thing> things) => Json("OK");

    Test Result

    enter image description here

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