verif

Secure data validation in JS

GitHub | NPM

Install

npm i verif

const {Validator, Range} = require('verif')

Usage

Create a validator

const myValidator = new Validator({
    'type': 'object',
    'props': {
        'name': {
            'type': 'string',
            'length': Range(3, 23)
        },
        'age': {
            'type': 'number',
            'value': Range(5, 4000)
        }
    }
})

Test with a validator

myValidator.test({
    'name': 'Tester',
    'age': 17
})

// This will not throw; data is acceptable.

myValidator.test({
    'name': 'Tester',
    'age': 4
})

// This will throw an error:
// Error: Number value 4 out of bounds. Expected in [5, 4000]

Validate with a validator

const res = myValidator.validate({
    'name': 'Tester',
    'age': 4
})

// This will return information about the validation:
/*
{
    passed: false,
    message: 'Number value 4 out of bounds. Expected in [5, 4000]',
    path: '/age/'
}
*/

Create a range

// new Range(min: number, max: number, inclusive: boolean)


new Range(4, 7, false)
// Exclusive range (4, 7)

new Range(6, 10, true)
new Range (6, 10)
// Inclusive range [6, 10]

Properties of types

For all validations, a type must be specified.

number

• Range value

  Permitted number value range

string

• Range length

  Permitted string length range

• RegEx test

  Mandatory string regular expression test

array

• Range length

  Permitted array length range

• schema items

  Schema for item testing

object

• Object[schema] props

  Schemas for testing individual properties

• boolean allowExtraProps

  Permit the inclusion of additional properties not defined in props

  Default: false