{
  "mysql": {
    "connection": {
      "host": "MYSQL_HOST",
      "user": "MYSQL_USER",
      "password": "MYSQL_PASSWORD",
      "database": "MYSQL_DB",
      "port": "MYSQL_PORT"
    }
  },
  "pg": {
    "connection": {
      "host": "PG_HOST",
      "port": "PG_PORT",
      "user": "PG_USER",
      "password": "PG_PASSWORD",
      "database": "PG_DB"
    }
  },
  "sqlite3": {
    "connection": {
      "filename": "SQLITE_FILE"
    }
  }
}