clear everytime entering into db

app.js

@@ -32,9 +32,15 @@ app.post('/insertorders', function (req, res) {
     console.log('Connected to Database! Inserting orders');
 
     var db = client.db("heroku_rg3dpg4f");
-    db.collection('orders').insertMany(orders, function (err, result) {
+    db.collection("customers").drop(function(err, delOK) {
-      if (err) return console.log(err);
+      if (err) throw err;
-      return console.log("INSERTED ALL ORDERS");
+      if (delOK) console.log("Collection deleted");
+
+      db.collection('orders').insertMany(orders, function (err, result) {
+        if (err) return console.log(err);
+        return console.log("INSERTED ALL ORDERS");
+      });
+
     });
 
     client.close();