Drag & Drop Case Attachments – Upload to Note Attachment function

function uploadToNoteAttachment(base64,fileName,fileType) {
    var record = {};
    record.filename = fileName; // Text
    record.documentbody = base64; // Text
    record.subject = fileName; // Text
    // Set the Regarding field to a case with GUID taken from the id parameter in the URL
    record["objectid_incident@odata.bind"] = "/incidents({{ request.params.id }})"; // Lookup

    webapi.safeAjax({
        type: "POST",
        contentType: "application/json",
        url: "/_api/annotations",
        data: JSON.stringify(record),
        success: function (data, textStatus, xhr) {
            var newId = xhr.getResponseHeader("entityid");
            console.log(newId);
        },
        error: function (xhr, textStatus, errorThrown) {
            console.log(xhr);
        }
    });
}