validation express code example

Example 1: express validator

npm install --save express-validator

Example 2: express validator

app.post('/form', [
  check('name').isLength({ min: 3 }),
  check('email').isEmail(),
  check('age').isNumeric()
], (req, res) => {
  const errors = validationResult(req)
  if (!errors.isEmpty()) {
    return res.status(422).json({ errors: errors.array() })
  }

  const name  = req.body.name
  const email = req.body.email
  const age   = req.body.age
})

Tags:

Javascript Example

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