@chrisbrocklesby/validation/index.js

This is a validation helper, It helps validate JSON data via a quick rule set you create.

module.exports = {
  validate(rules) {
    const errors = rules.reduce((errs, rule) => {
      if (rule.isValid === false) {
        errs.push(rule.message || null);
      }
      return errs;
    }, []);

    class ValidationError {
      constructor(message) {
        this.name = 'validationError';
        this.messages = (message || null);
      }
    }
    if (errors.length) {
      throw new ValidationError(errors);
    }
  },

  isString(data) {
    return (data) ? !!(typeof data === 'string') : true;
  },

  isNumber(data) {
    return (data) ? !!(typeof data === 'number') : true;
  },

  isBoolean(data) {
    return (data) ? !!(typeof data === 'boolean') : true;
  },

  isArray(data) {
    return (data) ? !!(!!data && data.constructor === Array) : true;
  },

  isObject(data) {
    return (data) ? !!(typeof data === 'object') : true;
  },

  isRequired(data) {
    return !(typeof data === 'undefined' || '');
  },

  notNull(data) {
    return (data) ? !!(data !== null) : true;
  },

  isPk(data) {
    return (data) ? /^[0-9a-f]{8}-[0-9a-f]{4}-[0-5][0-9a-f]{3}-[089ab][0-9a-f]{3}-[0-9a-f]{12}$/.test(data) : true;
  },

  isEmail(data) {
    return (data) ? /^\w+([.-]?\w+)*@\w+([.-]?\w+)*(\.\w{2,3})+$/.test(data) : true;
  },

  isPassword(data) {
    return (data) ? /^(?=.*[a-z])(?=.*[A-Z])(?=.*[0-9])(?=.{8,})/.test(data) : true;
  },
};