mongodb expressjs

mongodb.ts

import mongoose from 'mongoose';
mongoose.connect('mongodb://localhost:27017/mongotest', { useNewUrlParser: true });

const db = mongoose.connection;
db.on('error', console.error.bind(console, 'connection error:'));
db.once('open', function () {
  // we're connected!
  console.log("MongoDB connected");
});

interface kitten extends mongoose.Document {
  name: string;
}

const kittySchema = new mongoose.Schema({
  name: String
}, { strict: false });

const Kitten = mongoose.model<kitten>('Kitten', kittySchema);

app.post('/mpost', function (req, res) {
  const record = new Kitten(req.body);
  console.log('record:', record)
  record.save(function (err) {
    if (err) return console.error(err);
  });
  res.send("success mongo")
})

app.get('/findAll', function (req, res) {
  let result = Kitten.find(function (err, kittens) {
    if (err) return console.error(err);
    console.log('result', kittens)
    return kittens
  })
  console.log('findAll', result)
  res.send({ result })
})

app.get('/findById/:id', function (req, res) {
  let result = Kitten.findById(req.params.id)
  console.log('result', result)
  res.send("ok")
})