[Audaxviator]

app.post('/rates_post', function(req, res) {
  var rate={
    name: req.body.name,
    billing_name: req.body.bilname,
    cost: req.body.cost
  };
  MongoClient.connect('mongodb://localhost:27017/', function(err, client) {
    if(err) console.log(err);
    var coll = client.db('test_base').collection('crowd');
    coll.insertOne(rate, function(){
      coll.findOne({name: rate.name}, function(err, doc) {
        if(err) console.log(err);
        client.close();
        res.json(doc);
      });
    });
  });
});