Package Exports

node-input-validator

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Readme

Validation Library

Validation library for node.js

Note: Package is under development

Node Input Validator is a validation library for node.js. You can also extend library to add custom rules.

Installation

npm install node-input-validator

Usage

const v = require('node-input-validator');

let r = {};

let validator = new v(r, {name:''}, {name:'required|minLength:5'});

validator.check().then(function (matched) {
    console.log(matched);
    console.log(validator.errors);
});

Extending

validator.rules.validateCustom = async (field, value, message)  => {
        	
    if( value === 'yes' || value === 'on' ){
        return true;
    }else{
        this.validator.addError(field, 'custom', message || 'The value of the field needs to be  yes or no');
        return false;
    }

};

For Koa2 Attach koa middleware

const validator = require('node-input-validator');
app.use(validator.koa());

Controller Example

let v = await ctx.validate(ctx.request.body, {
        name:'required|max:50', 
        username:'required|max:15',
        email:'required|email',
        password:'required'
    });


let isValid = await v.check();

if (!isValid) {
    // return validation errors
    ctx.body = v.errors;
}

Rules

You can check test cases for rules.

required requiredIf:age,16 requiredNotIf:age,16 requiredWith:age requiredWithout:age

accepted alpha alphaDash alphaNumeric between:1,9 boolean contains digits digitsBetween email in Integer ip array json max min maxLength minLength notIn numeric regex same string url