{
  "name": "rpgmv-save-store-proxy",
  "addons": [
    "mongolab:free"
  ],
  "buildpacks": [
    {
      "url": "https://github.com/heroku/heroku-buildpack-nodejs"
    }
  ],
  "env": {
    "USERNAME": "user",
    "PASSWORD": "password",
    "MONGO_URL": ""
  },
  "image": "heroku/nodejs",
  "repository": "https://github.com/3846masa/rpgmv-save-store-proxy",
  "success_url": "/"
}

{
  "name": "rpgmv-save-store-proxy",
  "addons": [
    "mongolab:free"
  ],
  "buildpacks": [
    {
      "url": "https://github.com/heroku/heroku-buildpack-nodejs"
    }
  ],
  "env": {
    "USERNAME": "user",
    "PASSWORD": "password",
    "MONGO_URL": {
      "description": "Set url if you want to store to another server. (optional)",
      "required": false,
      "value": ""
    }
  },
  "image": "heroku/nodejs",
  "repository": "https://github.com/3846masa/rpgmv-save-store-proxy",
  "success_url": "/"
}

Set that MONGO_URL is not required
Set that MONGO_URL is not required
