RequestStart

<form id="form">
    <input name="firstName" />
    <button id="smartPasteButton"></button>
</form>

<script>
$("#smartPasteButton").kendoSmartPasteButton({
    service: {
        url: "https://api.example.com/smart-paste"
    },
    requestStart: function(e) {
        console.log("Processing started for content:", e.content);
    }
});
</script>

<form id="form">
    <input name="firstName" />
    <button id="smartPasteButton"></button>
</form>

<script>
function onRequestStart(e) {
    console.log("Processing started");
}

$("#smartPasteButton").kendoSmartPasteButton({
    service: {
        url: "https://api.example.com/smart-paste"
    }
});

var smartPasteButton = $("#smartPasteButton").data("kendoSmartPasteButton");
smartPasteButton.bind("requestStart", onRequestStart);
</script>