.babelrc

// build is when we build some static libs for client and server
// development is for client
// server is for node js dev phrase
// production is for deploying bundle web app
// node is for deploying bundle node server
// test is for testing
{  
  "plugins": ["transform-decorators-legacy", "transform-runtime", "transform-class-properties"],	  
	"env": {
		"development": {
			"plugins": [
        "./build/babelRelayPlugin",         
        "transform-decorators-legacy", 
        "transform-runtime", 
        "transform-class-properties", 
        "react-hot-loader/babel"
      ],
      "presets": ["es2015", "stage-3", "react"]			
		},    

    "production": {
      "plugins": [
        "./build/babelRelayPlugin",        
        "transform-decorators-legacy", 
        "transform-runtime", 
        "transform-class-properties", 
      ],
      "presets": [["es2015", { "modules": false }], "stage-3", "react"]
    },

    "node": {
      "presets": ["es2015", "stage-3"],
    },

    "server" : {
      "presets": ["es2015", "stage-3"],
    },

    "build": {    
      "presets": ["es2015", "stage-3"],
    },

    "test": {
      "presets": ["es2015", "stage-3"],
    }
	}
}