https://github.com/canastro/metamorphosis

Transform your js objects on the fly by pre-defined schemas
https://github.com/canastro/metamorphosis

Last synced: 9 months ago
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Transform your js objects on the fly by pre-defined schemas

• Host: GitHub
• URL: https://github.com/canastro/metamorphosis
• Owner: canastro
• Created: 2016-10-15T17:41:01.000Z (over 9 years ago)
• Default Branch: master
• Last Pushed: 2016-10-16T14:45:12.000Z (over 9 years ago)
• Last Synced: 2025-10-13T11:37:29.512Z (9 months ago)
• Language: JavaScript
• Homepage:
• Size: 9.77 KB
• Stars: 0
• Watchers: 0
• Forks: 1
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

          
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# Metamorphosis

Metamorphose is a library that allows you to transform your js objects on the fly by pre-defined schemas.

# Features

* Extend schemas

* Default values

* Nested schemas

* Transformations

* Dot notation

* Type validation (work in progress)

# Example

Here is a simple example that tries to include most of the features of metamorphosis:

## Schema Definition

    const Base = new SchemaObject({

        brand: {

            type: String,

            key: 'brand',

            transform: (brand) => brand.toUpperCase()

        },

        isPrivate: 'isPrivate'

    });

    const Spec = new SchemaObject({

        size: {

            key: 'size',

            transform: (size) => `${size}"`

        },

        connectors: {

            key: ':root',

            transform: (tv) => (tv.videoConnectors + tv.audioConnectors).split(', ')

        }

    });

    const Tv = Base.extends({

        specs: { key: ':root', type: Spec },

        price: { key: 'price', defaults: 'N/A' },

        internetConnection: {

            key: 'others.hasInternetConnection',

            transform: (value) => value ? 'check' : 'not check'

        }

    });

## Original Object

    const original = {

        brand: 'Grundig',

        thisShouldBeIgnored: 'HEY',

        isPrivate: true,

        size: 42,

        quality: 'Full HD',

        others: { hasInternetConnection: true },

        videoConnectors: '1 x Coaxial Digital Audio, 1 x Component Video, 1 x Composite Video, 2 x HDMI',

        audioConnectors: '1 x Headphone, 1 x PC Audio In, 1 x RCA Audio L+R'

    };

## Apply schema

    const result = Tv.create(original);

## Output

    {

        brand: 'GRUNDIG',

        isPrivate: true,

        price: 'N/A',

        specs: {

            size: '42"',

            connectors: [

                '1 x Coaxial Digital Audio',

                '1 x Component Video',

                '1 x Composite Video',

                '2 x HDMI1 x Headphone',

                '1 x PC Audio In',

                '1 x RCA Audio L+R'

            ]

        },

        internetConnection: 'check'

    }