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October 13, 2021 02:28 pm GMT
Original Link: https://dev.to/alguercode/powerful-javascript-and-simple-schema-builder-for-value-parsing-and-validation-4agi
powerful javascript and simple schema builder for value parsing and validation.
volder
link:volder
don't forget to leave a star in the repo
volder is a powerful JavaScript schema builder for value parsing and validation. Define a schema and validate values, volder schema are extremely simple to use, it has custom error messages, custom types, nested schemas.
Contents
Installation
npm install --save volder
Usage
You can create and validate volder schema objects by:
import Volder from 'volder';const person = new Volder({ name: { type: String, min: 4, trim: true, required: true }, age: { type: Number, max: 100 }});const [isValidPerson, errors] = person.validate({ name: 'lion', age: 23 });- return isValidPerson true if an object are valid otherwise false
- if there are error or something wrong return errors object with his option name otherwise return empty object {}
- throw an error if validate function paramatere other than object
- all types:
String, Number, Boolean, Object, Array, volderSchema, null- null mean everything -
Custom error messages
You Can Define you custom error messages by:
const person = new Volder({ name: { type: [String, "person name shoulde a string"], min: [4, "must at least 4 characters"] , required: [true, "name is important"] }, age: { type: [Number, "your age can not be a string"], max: [100, "age at most 100 years"] }, other: { type: [null, "'other' can be anything than object and array"] avoid: [Object, Array], required:false }});Custom type validator
You Can Define you custom types by adding a validator functions that returns a boolean:
import isEmail from 'package';import isValidPassword from 'package';const user = new Volder({ username: String, // use this trick by just add type as option value email: { type: [isEmail, 'Email is invalid'], max: 100 }, password: isValidPassword});Nested schemas
You Can Define Nested volder schemas by:
import Volder from 'volder';const person = new Volder({ name: String, age: Number });const user = new Volder({ email: { type: String, trim: true }, person: schema1});const [isValid, errors] = person.validate({ person: { name: 'lion', age: 23 }, email: '[email protected]'});License
Copyright 2021 salah alhashmi.
This project is MIT licensed.
Original Link: https://dev.to/alguercode/powerful-javascript-and-simple-schema-builder-for-value-parsing-and-validation-4agi
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