AppValidator

Motivation

AppValidator is used to validate and sanitize objects by properties, values and values types. There are two different ways to use the AppValidator:

• ModelRuleSet - a rule that validates objects and the relationships of its properties as a package
• RuleSetFactory - a factory that creates rules to validate single values

Code wise, both ModelRuleSet & RuleSetFactory (mainly) create and use PropRuleSet under the hood.

ModelRuleSet({strict, validations})

• strict (default:false) - if true, when validating an object that has unmentioned properties by the rule set, the validation will fail.
• validations (default: require('./validations')) - available validations for the model properties. can be overridden with an external library.

API

• validate(object={}) - returns an array of validation errors for the given object. errors.length === 0 means valid object

• isValid(object={}) - runs validate(object) under the hood and returns errors.length === 0

• sanitize(object={}, allowProps=[]) - return a version of the object sanitized according to the ModelRuleSet. optional allowProps arg is used to bypass sanitization for specific properties.

• add(prop='path.to.prop', ruleInitializer = PropRuleSet => ({})) - adds a rule to the ModelRuleSet. prop describes the expected key on the target object. ruleInitializer describes the value this key should hold.