var settings = {
        "url": "http://new.shpp.me:9345/api/authenticate",
        "method": "POST",
        "headers": {
            "content-type": "application/x-www-form-urlencoded",
        },
        "data": {
            "username": "admin",
            "password": "adminyasha"
        }
    };

    $.ajax(settings).done(function (response) {
        console.log(response);
    });