A simple server with CRUD enpoints built using Node.js, Express, MongoDB and Mongoose

server.js

const express = require('express');
const mongoose = require('mongoose');
const config = require('config');

const app = express();
app.use(express.json());

const db = config.get('mongoURI');
const Animal = require('./models/Animal');

mongoose
  .connect(db, { useNewUrlParser: true, useCreateIndex: true, useFindAndModify: false })
  .then(() => console.log('MongoDB Connected...'))
  .catch(err => console.log(err));

// Read all entries
app.get('/', (req, res) => {
  Animal.find()
    .sort({ date: -1 })
    .then(items => console.log(res.json(items)));
});

// Add a new entry
app.post('/', (req, res) => {
  const newAnimal = new Animal({
    name: req.body.name,
    isEndangered: req.body.isEndangered || false,
  });
  newAnimal
    .save()
    .then(item => res.json(item));
});

// Delete an entry
app.delete('/:id', (req, res) => {
  Animal.findOneAndDelete({ _id: req.params.id })
    .then(() => res.json({ success: true }))
    .catch(err => res.status(404).json({ success: false }));
});

// Update an entry
app.put('/:id', (req, res) => {
  Animal.findOneAndUpdate({ _id: req.params.id }, req.body)
    .then(() => res.json({ success: true }))
    .catch(err => res.status(404).json({ success: false }));
});

const port = 5000;
app.listen(port, () => console.log(`Server started on port: http://localhost:${port}`));