amazone/server/routes/products.js

const router = require('express').Router()
const Product = require('../models/product')
const upload = require('../middlewares/upload-photo')

router.post('/products', upload.single('photo'), async (req, res)=> {
  try {
    let product = new Product()
    product.ownerID = req.body.ownerID
    product.categoryID = req.body.categoryID
    product.price = req.body.price
    product.title = req.body.title
    product.description = req.body.description
    product.photo = req.file.location
    product.stockQuantity = req.body.stockQuantity

    await product.save()

    res.json({
      status: true,
      message: 'Success saved'
    })
  } catch(err) {
    res.status(500).json({
      success: false,
      message: err.message
    })
  }
})

router.get('/products', async (req, res) => {
  try {
    let products = await Product.find()
      .populate('owner category')
      .populate('reviews', 'rating')
      .exec()
    res.json({
      success: true,
      products
    })
  } catch (err) {
    res.status(500).json({
      success: false,
      message: err.message
    })
  }
})

router.get('/products/:id', async (req, res) => {
  try {
    let product = await Product.findOne( { _id: req.params.id })
      .populate('owner category')
      .populate('reviews', 'rating')
      .exec()
    res.json({
      success: true,
      product
    })
  } catch (err) {
    res.status(500).json({
      success: false,
      message: err.message
    })
  }
})

router.put('/products/:id', upload.single('photo'), async (req, res) => {
  try {
    let product = await Product.findOneAndUpdate( 
      { _id: req.params.id }, 
      {
        $set: {
          title: req.body.title,
          price: req.body.price,
          category: req.body.categoryID,
          description: req.body.description,
          photo: req.file.location,
          stockQuantity: req.body.stockQuantity,
          owner: req.body.ownerID
        }
      },
      { upsert: true }
    )
    
    res.json({
      success: true,
      updateProduct: product
    })
  } catch (err) {
    res.status(500).json({
      success: false,
      message: err.message
    })
  }
})

router.delete('/products/:id', async (req, res) => {
  try {
    let deleteProduct = await Product.findOneAndDelete( { _id: req.params.id })
    
    if (deleteProduct) {
      res.json({
        success: true,
        message: 'Successfully deleted'
      })
    }
  } catch (err) {
    res.status(500).json({
      success: false,
      message: err.message
    })
  }
})

module.exports = router