modelo ajax

$.ajax({
                    url: "http://localhost/api/myReturnDataJson",
                    type: "POST",
                    crossDomain: true,
                    contentType: 'application/json',
                    dataType: "json",
                    data: JSON.stringify({
                        param1: "param1",
                        param2: "param2"
                    }),
                    cors: true,
                    secure: true,
                    headers: {
                        'Access-Control-Allow-Origin': '*', //cors
                    },
                    beforeSend: function () {
                        // setting a timeout
                        $('body').addClass("loading");//div loading css
                    },
                    success: function (data) {
                        $('body').removeClass("loading");//div loading css
                        console.log(data);
                    },
                    error: function (xhr, status) {
                        alert("error");
                    }
                });