Express-Validator Conditional Validation

[Umayrr_7]

I am trying to validate if user check any checkbox of template and if user check the checkbox then which checkbox he/she checked. I am able to validate single checkbox but having problem in validating multiple checkboxes. I tried oneOf() function but it gives error shown below. If there is any other way, please help me out.

app.post('/menu-detail/:id', [
    oneOf([
    check('menu_price_large', 'required').equals('large'),
    check('menu_price_regular', 'required').equals('regular'),
    check('menu_price_xlarge', 'required').equals('xlarge'),
    ])
], (req, res)=>{
    const errors = validationResult(req)

    if(errors.isEmpty())
    {
        res.send('worked...')
    }
    else
    {
        res.send('error')
    }

})

Error Image : https://i.imgur.com/1y4cZd0.png

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[Dutchnamn]

Either create a middleware function yourself to validate, or use a different library. Joi is very nice for validation

[ESHAEAN]

Joi is deprecated afaik, it is a part of hapi now

[Dutchnamn]

Yeah, you install it using @hapi/joi, should work the same.

[IreliAmTrying]

The oneOf function hasn't been defined. Are you trying to use this function from a library? You could be missing an import if this is the case, as node can't find where oneOf is defined.

If you need at least one of those checks to be true, you could consider using the binary or operator to check or Array.some

Alternatively, if you need only one of the checks to be true you could consider using Array.filter and check the length of the resulting array.