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json-2-yup's Introduction

JSON 2 Yup

Build a Yup schema object out of a simple JSON object.

This library has been built for a use case which requires you to store form validation configuration on a server for use on your client side applications.

Install

npm install -S json-2-yup

yarn add json-2-yup

Basic Usage

import { toYup, NumberTypeSchema } from 'json-2-yup';
import * as yup from 'yup';

// json-2-yup

const schema: NumberTypeSchema = {
    type: 'number',
    strict: true,
    required: true,
    min: 5,
    errors: {
        min: 'My custom min value message',
        required: 'My custom required message'
    },
};

const yupSchema = toYup(schema);

console.log(yupSchema.isValidSync(5)); //true
console.log(yupSchema.isValidSync(1)); //false

// Equivalent to 

const yupNumberSchema = yup
        .number()
        .min(5, 'My custom min value message')
        .required('My custom required message')
        .strict(true);

console.log(yupNumberSchema.isValidSync(5)); //true
console.log(yupNumberSchema.isValidSync(1)); //false

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