Transformo JS

Transform one plain object to another with detail scheme. Tools for transform data object from scheme and row data to new object. You can validate row data, transform this, set default value and create new object.

See usage section.

Installation

npm install --save transformo

Usage

import { formo } from 'transformo'

const source = {
    foo: {
        bar: {
            id: 0,
            name: undefined,
            image: 'image.jpg',
            some: {
                field: 'custom'
            }
        }
    }
};

const shape = {
    newFoo: formo.shape({
        id: formo.field({
            path: 'foo.bar.id',
            type: formo.number().required()
        }),
        name: formo.field({
            path: 'foo.bar.name',
            type: formo.string(),
            defaultValue: 'Unknown'
        }),
        image: formo.field({
            path: 'foo.bar.image',
            type: formo.string(),
            transform: (value) => `http://site.com/${value}`
        }),
        difficult: formo.field({
            type: formo.string().required(),
            getSourceValue: (data) => _.get(data, 'foo.bar.some.field')
        })
    }) 
};

const fooModel = formo.model(shape, source);

fooModel
    .invalid((errors) => ...)
    
fooModel
    .valid((values) => ...)
    
fooModel
    .data()
    
fooModel
    .isValid()
    
fooModel
    .isInvalid()

console.log(fooData);    

// -> { newFoo: { id: 0, name: 'Unknown', image: 'http://site.com/image.jpg', difficult: 'custom' } }