revalidate

Elegant and composable validations.

Revalidate is a library for creating and composing together small validation functions to create complex, robust validations. There is no need for awkward configuration rules to define validations. Just use functions.

All right. No more upselling. Just look at an example :heart:.

// ES2015
import {
  createValidator,
  composeValidators,
  combineValidators,
  isRequired,
  isAlphabetic,
  isNumeric
} from 'revalidate';

// Or ES5
var r = require('revalidate');
var createValidator = r.createValidator;
var composeValidators = r.composeValidators;
var combineValidators = r.combineValidators;
var isRequired = r.isRequired;
var isAlphabetic = r.isAlphabetic;
var isNumeric = r.isNumeric;

// Usage
const dogValidator = combineValidators({
  name: composeValidators(
    isRequired,
    isAlphabetic
  )('Name'),

  age: isNumeric('Age')
});

dogValidator({}); // { name: 'Name is required' }

dogValidator({ name: '123', age: 'abc' });
// { name: 'Name must be alphabetic', age: 'Age must be numeric' }

dogValidator({ name: 'Tucker', age: '10' }); // {}

Install

Install with yarn or npm.

yarn add revalidate

npm install --save revalidate

Getting Started

Docs

Revalidate has a host of options along with helper functions for building validations and some common validation functions right out of the box. To learn more, check out the docs.

Changelog

v1.0.0

:tada: First major release - NO breaking changes

Revalidate has been out for several months, and the API has stayed pretty solid. With the addition of Immutable.js and arbitrary data source support along with docs and Flow typechecking, I feel like revalidate is ready to be bumped to v1.

A couple internal helpful error messages were removed for being redundant or unnecessary, but there weren't any real breaking changes in this release. Therefore, you should be to upgrade with no problem.