Universal Validation

A universal validation library to check values in an object. Alpha release is simple validation object mapping to object key value.

#####todo

• Implement length checking as part of validation objects. Either Validation base class or by chaining validators.
• Option to make Observable emit the entire list of ValidationResults instead of 1 by 1
• cancellable opperation, with the async nature it is possible to open 0 - 100 connections as the user is typing, it is best to offset the processing time and run then but also cancel the previous operation when the next one starts

Install

npm i --save uni-validation

Usage

const { AsyncValue, EmailValue, Validation } = require('uni-validation');

let asyncTimer;
const delayValue = 1000;
const delayTime = 250;
const validationSchema = {
    email: {
        required: true,
        type: EmailValue
    },
    name: {
        required: true
    },
    delay: {
        type: AsyncValue,
        asyncFunction: (data, next) => {
            asyncTimer = setTimeout(() => {
                if (data === delayValue) {
                    next(null);
                } else {
                    next({
                        message: 'Validation failed, the data was not the delayValue'
                    });
                }
            }, delayTime);
        },
        cleanup: () => {
            clearTimeout(asyncTimer);
        }
    }
};

const data = {
    email: '[email protected]',
    name: '',
    delay: delayValue
};

const validation = new Validation(validationSchema);
const results = [];
const obs$ = validation.validate(data);
obs$.subscribe(validationResult => {
    console.log('Validation result for ' + validationResult.fieldname);
    console.log('validation is valid ' + validationResult.isValid);
    console.log('errors ' + validationResult.errors);
});