.babelrc

{
  "presets": [
    "@babel/preset-env",
    "@babel/preset-react"
  ],
  "env": {
    "production": {
      "plugins": [
        "react-hot-loader/babel",
        "add-module-exports",
        "dynamic-import-webpack",
        "@babel/plugin-proposal-object-rest-spread",
        "@babel/plugin-proposal-class-properties",
        "@babel/plugin-transform-modules-commonjs",
        [
          "@babel/plugin-syntax-decorators",
          {
            "legacy": true
          }
        ],
        "@babel/plugin-transform-react-constant-elements",
        "@babel/plugin-transform-react-inline-elements"
      ]
    },
    "development": {
      "plugins": [
        "react-hot-loader/babel",
        "add-module-exports",
        "dynamic-import-webpack",
        "@babel/plugin-proposal-object-rest-spread",
        "@babel/plugin-proposal-class-properties",
        "@babel/plugin-transform-react-constant-elements",
        "@babel/plugin-transform-modules-commonjs",
        [
          "@babel/plugin-syntax-decorators",
          {
            "legacy": true
          }
        ],
        [
          "react-intl",
          {
            "messagesDir": "./build/messages/"
          }
        ]
      ]
    }
  }
}