Invoices crash fix

controllers/invoices.js

@@ -14,12 +14,14 @@ exports.listInvoices = (req, res, next) => {
         error: (undefined === body || search_idx > -1) ? 'Error From Server!' : body.error
       });
     } else {
-      body.invoices.forEach(invoice => {
-        invoice.creation_date_str =  (undefined === invoice.creation_date) ? '' : common.convertTimestampToDate(invoice.creation_date);
-        invoice.settle_date_str =  (undefined === invoice.settle_date) ? '' : common.convertTimestampToDate(invoice.settle_date);
-        invoice.btc_value = (undefined === invoice.value) ? 0 : common.convertToBTC(invoice.value);
-        invoice.btc_amt_paid_sat =  (undefined === invoice.amt_paid_sat) ? 0 : common.convertToBTC(invoice.amt_paid_sat);
-      });
+      if (undefine !== body.invoices) {
+          body.invoices.forEach(invoice => {
+            invoice.creation_date_str =  (undefined === invoice.creation_date) ? '' : common.convertTimestampToDate(invoice.creation_date);
+            invoice.settle_date_str =  (undefined === invoice.settle_date) ? '' : common.convertTimestampToDate(invoice.settle_date);
+            invoice.btc_value = (undefined === invoice.value) ? 0 : common.convertToBTC(invoice.value);
+            invoice.btc_amt_paid_sat =  (undefined === invoice.amt_paid_sat) ? 0 : common.convertToBTC(invoice.amt_paid_sat);
+          });
+        }
       console.log('\nInvoices Received: ' + JSON.stringify(body));
       res.status(200).json(body);
     }