Express Validator Error: expressValidator is not a function

Question

I'm trying to install and use express-validator package. I've installed the package version (6.0.0) and then in my server.js file the code is:

const bodyParser = require('body-parser')
const expressValidator = require('express-validator')
const express = require('express')
const nunjucks = require('nunjucks')
const sessionInMemory = require('express-session')
const cookieParser = require('cookie-parser')

Then a few lines down I've put in the following:

const app = express()
const documentationApp = express()
app.use(expressValidator())

When the server reloads the changes (using nodemon) the app crashes and says:

TypeError: expressValidator is not a function

There are other bits of code in my server.js file but I've stripped out most of it that isn't relevant I think.

Console log for expressValidator:

{ oneOf: [Function: oneOf],
  buildSanitizeFunction: [Function: buildSanitizeFunction],
  sanitize: [Function],
  sanitizeBody: [Function],
  sanitizeCookie: [Function],
  sanitizeParam: [Function],
  sanitizeQuery: [Function],
  buildCheckFunction: [Function: buildCheckFunction],
  check: [Function],
  body: [Function],
  cookie: [Function],
  header: [Function],
  param: [Function],
  query: [Function],
  checkSchema: [Function: checkSchema],
  matchedData: [Function: matchedData],
  validationResult: { [Function] withDefaults: [Function: withDefaults] },
  Result: [Function: Result] }

Code for routes.js file:

router.get('/email-adress', function (req, res) {
  res.render('email-adress', { success: req.session.success, errors: req.session.errors })
  req.session.errors = null
})

router.post('/finished', function (req, res) {
  let email = req.body.email

  req.checkBody('email', 'Email required').isEmail()

  var errors = req.validationErrors()
  if (errors) {
    req.session.errors = errors
    req.session.success = false
    res.redirect('/email-adress')
  } else {
    req.session.success = true
    res.redirect('/finished')
  }
})

Answer 1

Express Validator has been updated therefore, you can't use it this way This is a new way to use the express validator

Weather stick with the previous version or use the current syntex of it.

npm uninstall express-validator
npm install [email protected]