app-before-partition.js

const fs = require('fs');
const express = require('express');

const app = express();

// MIDDLEWARES
app.use(express.json());

const tours = JSON.parse(
  fs.readFileSync(`${__dirname}/dev-data/data/tours-simple.json`)
);

const getAllTours = (req, res) => {
  res.status(200).json({
    status: 'success',
    results: tours.length,
    data: {
      tours
    }
  });
};

const getTour = (req, res) => {
  console.log(req.params);
  const id = req.params.id * 1; // to convert string to number
  const tour = tours.find(el => el.id === id);

  // if (id > tours.length) {
  if (!tour) {
    return res.status(404).json({
      status: 'fail',
      message: 'Invalid ID'
    });
  }

  res.status(200).json({
    status: 'success',
    data: {
      tour
    }
  });
};

const createTour = (req, res) => {
  //console.log(req.body);
  const newId = tours[tours.length - 1].id + 1;
  const newTour = Object.assign({ id: newId }, req.body);

  tours.push(newTour);

  fs.writeFile(
    `${__dirname}/dev-data/data/tours-simple.json`,
    JSON.stringify(tours),
    err => {
      res.status(201).json({
        status: 'succcess',
        data: {
          tour: newTour
        }
      });
    }
  );
};

const updateTour = (req, res) => {
  if (req.params.id * 1 > tours.length) {
    {
      return res.status(404).json({
        status: 'fail',
        message: 'Invalid ID'
      });
    }
  }
  res
    .status(200)
    .json({ status: 'success', data: { tour: '<Updated tour here...>' } });
};

const deleteTour = (req, res) => {
  if (req.params.id * 1 > tours.length) {
    {
      return res.status(404).json({
        status: 'fail',
        message: 'Invalid ID'
      });
    }
  }
  res.status(204).json({ status: 'success', data: null });
};

// app.get('/api/v1/tours', getAllTours);
// app.post('/api/v1/tours', createTour);
// app.get('/api/v1/tours/:id', getTour);
// app.patch('/api/v1/tours/:id', updateTour);
// app.delete('/api/v1/tours/:id', deleteTour);

app
  .route('/api/v1/tours')
  .get(getAllTours)
  .post(createTour);

app
  .route('/api/v1/tours/:id')
  .get(getTour)
  .patch(updateTour)
  .delete(deleteTour);

// Start server
const port = 3000;
app.listen(port, () => {
  console.log(`App running on port ${port}...`);
});