mappingFactory

Object converter

Install

npm install mapping-factory

Getting Started

import {
  lowerCamelCaseProvider,
  defaultArrayProvider
} from './DefaultProviders';
import { MappingFactory } from './MappingFactory';

// #region DEMO Object
class Hummer {
  Name: string;
  Country: string;
  Children: Hummer[];
}

class Hummer2 {
  name: string;
  country: string;
  children: Hummer2[];
}

const sourceChild1 = new Hummer();
sourceChild1.Name = 'B';
sourceChild1.Country = 'JP';

const sourceChild2 = new Hummer();
sourceChild2.Name = 'C';
sourceChild2.Country = 'US';

const source = new Hummer();
source.Name = 'A';
source.Country = 'TW';
source.Children = [sourceChild1, sourceChild2];
// #endregion

// register lower camel case
MappingFactory.register(lowerCamelCaseProvider);

// result: {"name":"A","country":"TW","children":[{"name":"B","country":"JP"},{"name":"C","country":"US"}]}
console.log(
  JSON.stringify(MappingFactory.convert(source, lowerCamelCaseProvider.name))
);

// clean all providers (and default provider)
MappingFactory.clearProviders();
MappingFactory.register(defaultArrayProvider);

// register custom provider
MappingFactory.register({
  name: 'HummerToHummer2',
  sourceType: Hummer,
  targetType: Hummer2,
  convert: (input: Hummer, convert) => {
    const result = new Hummer2();
    result.name = convert(input.Name); // convert method == MappingFactory.convert
    result.country = convert(input.Country);
    result.children = convert(input.Children);
    return result;
  }
});

MappingFactory.register({
  name: 'boxingStringToArray',
  sourceType: String,
  targetType: Array,
  convert: (input: string) => {
    return [input];
  }
});

// result: {"name":["A"],"country":["TW"],"children":[{"name":["B"],"country":["JP"]},{"name":["C"],"country":["US"]}]}
console.log(JSON.stringify(MappingFactory.convert(source)));