site-accueil-insa/assets/js/admin/updateManager.js

$(document).ready(function () {
    $(".save").click(function () {
        sendLogin($('#usernameInput').val(), $('#passwordInput').val());
    });
});

function sendLogin(login, password) {
    let object = {
        "function": 'update_website',
        "login": login,
        "password": password,
    };
    console.log(JSON.stringify(object));
    // Do not put .php in the url, otherwise the POST request will transformed in GET when server rewrites the url
    $.ajax({
        type: "POST",
        url: "../ajax/write/master",
        data: JSON.stringify(object),
        dataType: "json",
        contentType: "application/json; charset=utf-8",
        complete: function (data) {
            alert(data.responseText);
            console.log(data);
        },
    });
}