IMPORTANT: PLEASE DO NOT USE THIS LIB YET. IT'S STILL UNDER DEVELOPMENT

Fluent Validator JS

Fluent Validator JS is a port from https://github.com/andrebaltieri/FluentValidator which is an implementation of design by contracts in C#.

Design By Contracts

Creating contracts to validate your models or anything else is a good way to avoid cyclomatic complexity (Reducing the number of conditionals). https://en.wikipedia.org/wiki/Design_by_contract

Fail Fast Validations

Why expect Mongoose (And depends on it) to validate your model (Or Commands)? Fail Fast validations take place on validating your models as soon as possible, giving you chance to fail before it hits the database.

Instalation and usage

Instalation

npm install fluent-validator --save

Basic usage

(()=>{
  'use strict';
  const customer = { name: '' };
  const contract = require('fluent-validator');
  
  contract.isRequired(customer.name, 'Customer name is required');
  
  console.log(contract.errors);
})();

Async/Await Support

(()=>{
  'use strict';
  const customer = { name: '' };
  const contract = require('fluent-validator');
  
  await contract.isRequired(customer.name, 'Customer name is required');
  
  console.log(contract.errors);
})();

Clear error list

(()=>{
  'use strict';
  const customer = { name: '' };
  const contract = require('fluent-validator');
  
  await contract.isRequired(customer.name, 'Customer name is required');
  
  await contract.clear();
  console.log(contract.errors);
})();

Props and Methods