addon-manifest.json

{
  "id": "custom-addon",
  "name": "CustomAddon",
  "api": {
    "config_vars": [],
    "requires": [],
    "regions": [ "us", "eu" ],
    "password": "85b5565db27efac4e88ebe9ba990982d",
    "sso_salt": "f33dbf8a60484995c8d47d1f0115ee8a",
    "production": {
      "base_url": "https://custom-addon.com/heroku/resources",
      "sso_url": "https://custom-addon.com/heroku/sso"
    },
    "test": {
      "base_url": "http://localhost:5000/heroku/resources",
      "sso_url": "http://localhost:5000/heroku/sso"
    }
  }
}