// adapter: 'redis',

// host: 'localhost',
// port: 6379,
// ttl: <redis session TTL in seconds>,
// db: 0,
// pass: <redis auth password>,
// prefix: 'sess:',

npm install connect-mongo --save

adapter: 'connect-mongo',

url: 'mongodb://user:pass@host:port/database',
collection: 'sessions',
auto_reconnect: false,
ssl: false,
stringify: true