animal-api/babel.config.js

module.exports = {
    presets:[
        [
            '@babel/preset-env',
            {
                targets:{
                    node: 'current'
                }
            }
        ]
    ],
    plugins:[
        [
            '@babel/plugin-transform-modules-umd',{
                exactGlobals: true,
                globals:{
                    index: 'AnimalApi'
                }
            }
        ]
    ]
}