An easy schema like object validator


0291.0.13 years ago3 years agoMinified + gzip package size for @kissmybutton/schema-guard in KB



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A configurable schema object validator.


schema-guard is available as an npm package.

// with npm
npm install @kissmybutton/schema-guard

// with yarn
yarn add @kissmybutton/schema-guard


import Validator from '@kissmybutton/schema-guard';

const configuration = {
 width: {
   type: 'string'

let validator = new Validator(configuration);
const objectToValidate = {
  width: '100px'

let validation = validator.validate(objectToValidate);

// Results in an objects with valid and errors properties

// validation.valid: true/false
// validation.errors: array of objects of type { message: string }


git clone https://github.com/kissmybutton/schema-guard.git YOURFOLDERNAME

# Run npm install and write your library name when asked. That's all!
npm install

Start coding! package.json and entry files are already set up for you, so don't worry about linking to your main file, typings, etc. Just keep those files with the same name.


  • Zero-setup. After running npm install things will setup for you :wink:

Allowed types

Property Type Required Description
type String The type definition of the attribute type
required Array If defined, the required attribute is an array where the first item is the flag whether or not the attribute is required, and the second item of the array is the custom error message text: required: [true, 'is required']
validate Function If defined, the validate attribute is a function that adds the ability of custom implementations for validations. Example: validate: { validator: function(v) { return /\d{4}/.test(v) }, message: 'my custom message'}, This will validate the input to be exactly 4 digits long.
minimum Number When defining type of number or integer, you can define minimum value so that it validates that the value is equal or greater than the defined value
maximum Number When defining type of number or integer, you can define maximum value so that it validates that the value is equal or smaller than the defined value
units Object If defined, you must also define an enum property which is an array of strings. Each item in that array is of type string and the given string that is to be validated must include at least one of the defined units.


Please read CONTRIBUTING.md for details on our code of conduct, and the process for submitting pull requests to us.


This project is licensed under the MIT License - see the LICENSE.md file for details

If you find any bugs or have a feature request, please open an issue on github!

The npm package download data comes from npm's download counts api and package details come from npms.io.