notEmpty() not working

[dhpradeep]

Hi , i'm using latest version of express-validator,
and there is nothing about notEmpty in readme.md .
when i use it shows this message
check('topic', 'this is not be empty').notEmpty(),

TypeError: check(...).notEmpty is not a function

so how can i use ?

[0bs3n]

I see that you closed this issues the same day you posted it, but I am now facing the same issue as you. It appears that "notEmpty()" is no longer provided by validator.js as a validator, but is there an alternative? I simply want to make sure that an input on a form is not empty. I realize this can be done with the "required" html attribute, but I want to know if there is a standard way to do it via express-validator, so I can keep all my validation in one place.

[gustavohenke]

Hi @Ethan-ks,
Looks like this issue fell off my radar.

"notEmpty()" is no longer provided by validator.js as a validator

It was never a validator.js validator. Actually, it was an express-validator validator in the legacy API (in fact, it still is).

is there an alternative?

Yes, with the check API you can use check('something').not().isEmpty() for now.

I acknowledge this was way too popular in previous versions of express-validator, so I'm willing to bring it back.

[0bs3n]

I think that check('thing').not().isEmpty() is actually plenty straightforward, the problem lies in the check().not() method not being clearly documented. I looked through the check API page as well as the list of validators withing the validator.js documentation, and didn't see any mention of it. If I'm simply missing it, please point it out to me, otherwise, I think mentioning the existance of the method would avoid future issues like this. Thanks.

[gustavohenke]

I looked through the check API page as well as the list of validators withing the validator.js documentation, and didn't see any mention of it

Again, not a validator.js thing.

The check API returns a Validation Chain, which in turn contains all of validator.js validators + a few other methods (these being documented there).

Do you know of any way we could improve the docs to make these more prominent?

[maryamkhidir]

Thanks @gustavohenke for the solution. I was facing a similar bug to @dhpradeep and I was able to fix it with the solution you provided. Thanks man

[shanutthankachan]

use, check('lastName').not().isEmpty().withMessage('The Last name is required')

[jakazzy]

Thanks @gustavohenke I faced this issue. Followed your solution and it worked. Big ups!

[jaguardev]

using not().isEmpty() works for imperative style great
what about schema validation?
let's say how to validate not empty and not a number?

checkSchema({
    id: {
      not: true,
      isEmpty: true,
      not: true, // like this? :)
      isInt: true, // -- like this, but not a number
    }
})

[gustavohenke]

Hey @jaguardev,
You would do it like this:

checkSchema({
	id: {
		isEmpty: {
			negated: true,
		}
	}
})

[gustavohenke]

Shipped in v6.3.0!

[lock]

This thread has been automatically locked since there has not been any recent activity after it was closed. Please open a new issue for related bugs.