medium-post-simple-rest-04

index.js

const bodyParser = require('body-parser'); //post body handler
const { check, validationResult } = require('express-validator/check'); //form validation
const { matchedData, sanitize } = require('express-validator/filter'); //sanitize form params
const multer  = require('multer'); //multipar form-data
const path = require('path');
const crypto = require('crypto');

//Set body parser for HTTP post operation
app.use(bodyParser.json()); // support json encoded bodies
app.use(bodyParser.urlencoded({ extended: true })); // support encoded bodies

//set static assets to public directory
app.use(express.static('public'));
const uploadDir = '/img/';
const storage = multer.diskStorage({
    destination: "./public"+uploadDir,
    filename: function (req, file, cb) {
      crypto.pseudoRandomBytes(16, function (err, raw) {
        if (err) return cb(err)  

        cb(null, raw.toString('hex') + path.extname(file.originalname))
      })
    }
})

const upload = multer({storage: storage, dest: uploadDir });