express validator

// ...rest of the initial code omitted for simplicity.
const { body, validationResult } = require('express-validator');

app.post(
  '/user',
  // username must be an email
  body('username').isEmail(),
  // password must be at least 5 chars long
  body('password').isLength({ min: 5 }),
  (req, res) => {
    // Finds the validation errors in this request and wraps them in an object with handy functions
    const errors = validationResult(req);
    if (!errors.isEmpty()) {
      return res.status(400).json({ errors: errors.array() });
    }

    User.create({
      username: req.body.username,
      password: req.body.password,
    }).then(user => res.json(user));
  },
);

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Source: express-validator.github.io

Tags: express-validator express-validato

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Contributed on Jan 19 2022

Exuberant Eland

0 Answers Avg Quality 2/10

custom validator express validator

Comment

body("thumbnail_file").custom(async (value, { req }) => {
  const thumbnailFile = req.files && req.files.thumbnail_file;
  if (!thumbnailFile) {
    return true;
  } else if (Array.isArray(thumbnailFile)) {
    throw new Error("Only one thumbnail file is allowed.");
  }
  if (
    thumbnailFile.mimetype !== "image/png" &&
    thumbnailFile.mimetype !== "image/jpg" &&
    thumbnailFile.mimetype !== "image/jpeg"
  ) {
    throw new Error(
      "Only .png, .jpg and .jpeg image formats are allowed for thumbnail file."
    );
  }
}),

Popularity 10/10 Helpfulness 2/10 Language javascript

Source: Grepper

Tags: express-validator express-validato

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Contributed on Apr 14 2022

Ali Raza

0 Answers Avg Quality 2/10

express-validator check

Comment

check('Username', 'Username contains non-alphanumeric characters - not allowed.').isAlphanumeric()

Popularity 10/10 Helpfulness 1/10 Language whatever

Source: careerfoundry.com

Tags: express-validator express-validato

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Contributed on May 12 2022

Quaint Quelea

0 Answers Avg Quality 2/10

express validator

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