.reactserverrc

{
  "routesFile": "./routes.json",
  "host": "localhost",
  "port": 3000,
  "jsPort": 3001,
  "hot": false,
  "minify": false,
  "longTermCaching": false,
  "compileOnly": false,
  "https": false,
  "logLevel": "debug",
  "env": {
    "staging": {
      "port": "4000"
    },
    "production": {
       "port": "80"
    }
  }
}