json-shaper

json-shaper

Shape a flat array into a molded json shape with deep nesting

Installation

yarn

$ yarn add json-shaper

npm

$ npm install json-shaper --save

How to use

// import shaper
import { shaper } from 'json-shaper';

// load data to be transformed
import input from './data/input.js'


// define a schema to shape by
const schema = {
  id: 'id',
  firstName: 'first_name',
  lastName: 'last_name',
  workplace: {
    id: 'office_id',
    name: 'office_company_name',
    address: {
      street: 'company_street',
      postCode: 'company_postcode',
      country: 'company_cty',
    }
  },
  isActive: 'user_is_active'
}


// generate transformer function based on schema
const transformer = shaper(schema)

// transform data
const result = input.map(transformer)

// profit
console.log(JSON.stringify(result, null, 2));

If the input data looks like this:

[
  {
    "id": 32,
    "first_name": "John",
    "last_name": "Flow",
    "office_id": 12,
    "office_company_name": "ACME Inc.",
    "company_street": "Rocket Street 3",
    "company_postcode": "11122",
    "company_cty": "Space City",
    "user_is_active": false
  },
  {
    "id": 100,
    "first_name": "Mike",
    "last_name": "",
    "office_id": 532,
    "office_company_name": "",
    "user_is_active": true
  },
  ...
  ...
  ...
]

json-shaper will transform it into this:

[
  {
    "id": 32,
    "firstName": "John",
    "lastName": "Flow",
    "workplace": {
      "id": 12,
      "name": "ACME Inc.",
      "address": {
        "street": "Rocket Street 3",
        "postCode": "11122",
        "country": "Space City",
      }
    },
    "isActive": false
  },
  {
    "id": 100,
    "firstName": "Mike",
    "lastName": "",
    "workplace": {
      "id": 532,
      "name": "",
      "address": {}
    },
    "isActive": true
  },
  ...
  ...
  ...
]

Performance / Benchmarks

    // TODO

License

MIT License

Copyright (c) 2017 Chris Kalmar

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.