babel json loader

npm install -D babel-loader @babel/core @babel/preset-env webpack

module: {
  rules: [
    {
      test: /\.m?js$/,
      exclude: /(node_modules|bower_components)/,
      use: {
        loader: 'babel-loader',
        options: {
          presets: ['@babel/preset-env']
        }
      }
    }
  ]
}

$ npm install --save-dev babel-plugin-inline-json-import