smart-mapper

Smart Mapper is useful when you want transform data that you have received.

The lastest version of this document is available on [Github > smart-mapper](https://github.com/Sylvain59650/smart-mapper/blob/master/README.md)

## Installation



  npm install smart-mapper --save

OR

  yarn add smart-mapper --save

## Without installation ## References for Nodejs const SmartMapper = require('smart-mapper'); ## References in browser



    
  <script src="./node_modules/smart-mapper/distrib/smart-mapper.min.js"></script>

## How it works SmartMapper.mapping(template, entryData); Arguments entryData: json data to transform template: json object contain this structure : mappings: json object that contain in keys the destination, and in values the path in the specific object to extract rules: array that contains methods to execute on a particular field during the transformation. rules is an optional value in the template object. validate: predicate called before insert item, only insert if predicate is true. Optional parameter. childrenPropertyName : name of property to map children each rule is composed of the "on" , "execute" and postCondition properties. The value of the "on" property is the name of a field in the object mapping. The value of the "execute" property is a function that can take up to 4 parameters: (value, item, array, index) where: value: value extracted from the field value item: the current object in the table array: the entire array index; the position of the current item in the table the value of the "postCondition" is a function with 1 parameter :(the current transformed key). If the function return false, the transformed key is not insert in the curernt item. Returns json data tranformed **Notes** [See examples on GitHub](https://sylvain59650.github.io/smart-mapper/)