WasteInformationServer/resources/wwwroot/js/index.js

$(document).ready(function () {
    $('#loginbtn').click(function (e) {
        e.preventDefault();
        console.log("clicked login button");
        var username = $("#userfield")[0].value;
        var password = $("#passfield")[0].value;

        $.post('/senddata/loginget', 'username=' + username + '&password=' + password, function (data) {

            console.log(data);
            if (data.accept == true) {
                console.log("successfully logged in!");
                document.cookie = "username=" + username;
                window.location = 'dashboard.html';
            }
        }, 'json');
    });
});