template.json

{
     "pageFormat": {
         "pageLength": 20,
         "pageWidth": 45,
         "usePageLengthFromPrinter": true
     },
     "template": {
         "header": [ " WINDY COLLECTIONS         ${tanggal:20::right}",
			" JL. XXXX NO XXX","" ],
         "detail": [
             " Nomor Faktur: ${idTransaksi:20}",
	     " PETUGAS KASIR : ${petugasKasir:20}",
             {
                "table": "listItemStruk",
                "border": true,
                "columns": [
                    { "caption": "Nama Barang", "source": "namaBarang", "width": 15, "wrap": true },
                    { "caption": "Jumlah", "source": "jumlah::right", "width": 7 },
                    { "caption": "Harga", "source": "harga::right", "width": 12 },
		    { "caption": "Total", "source": "totalPerItem::right", "width": 12 }
                ]
             },
             
             " Total Harga:${totalHarga:32::right}",
             " Bayar: ${totalBayar:37::right}",
             " Kembalian: ${totalKembalian:33::right}"
         ],
	"footer":[""," The footer"]
     }
 }