new url parser

server.js

@@ -13,7 +13,7 @@ app.listen(PORT, ()=>{
     console.log('listening...');
 })
 
-mongoose.connect(mongoUri);
+mongoose.connect(mongoUri, { useNewUrlParser:true });
 mongoose.connection.on('open', ()=>{
     console.log('connected to mongoose!!!!!!');
 })