const connection = new signalR.HubConnectionBuilder()
    .withUrl("/notify")
    .build();

    connection.on("notifyclient", (id,eventtype,subject,eventtime,content) => {
    var json = JSON.parse(content);
    const encodedMsg = "<strong>{" + "Notification Id: " + json.id + ",Message: " + json.subject + ",Uri: " + json.data.ItemUri + "}</strong>";

    var div = document.createElement("div");
    var attrib = div.setAttribute("class","alert alert-success");
    //attrib.value = "alert alert-success";

    var div_1 = document.createElement("div");
    var attrib_1 = div_1.setAttribute("id","messageList");
    //attrib_1.value = "messageList";
    div_1.innerHTML = encodedMsg;
    div.appendChild(div_1);

    //li.textContent = encodedMsg;
    document.getElementById("tbrow").appendChild(div);
});

connection.start().catch(err => console.error(err.toString()));