.babelrc

{
  "presets": ["react", "es2015", "stage-1"],
  "env": {
    // this plugin will be included only in development mode, e.g.
    // if NODE_ENV (or BABEL_ENV) environment variable is not set
    // or is equal to "development"
    "development": {
      "plugins": [
        "transform-object-rest-spread",
        // must be an array with options object as second item
        ["react-transform", {
          // must be an array of objects
          "transforms": [{
            // can be an NPM module name or a local path
            "transform": "react-transform-hmr",
            // see transform docs for "imports" and "locals" dependencies
            "imports": ["react"],
            "locals": ["module"]
          }, {
            // you can have many transforms, not just one
            "transform": "react-transform-catch-errors",
            "imports": ["react"]
          }, {
            // can be an NPM module name or a local path
          }]
          // by default we only look for `React.createClass` (and ES6 classes)
          // but you can tell the plugin to look for different component factories:
          // factoryMethods: ["React.createClass", "createClass"]
        }]
      ]
    }
  }
}