In this chapter, we learned about sessions and the Redis data store service. We also learned how to integrate Redis with Express so we can create unique sessions for our users. This will be critical for building our authentication services in later chapters.
In the next chapter, we will set up our Postgres server and create our database schema. We will also learn about TypeOrm, which will allow us to integrate and use Postgres from our application. And finally, we will also build out our authentication service and tie it to our session state.