Summary

Throughout this chapter, we learned how to add realtime support to our server application to push new comments and likes on users' posts from the server to the client, right at the moment when they are added. To achieve this, we used GraphQL subscriptions with Apollo Server.

Next, we implemented JWT authentication to prevent users that are not authenticated from subscribing to these realtime subscriptions.

Now that we have a working GraphQL API, with realtime subscriptions and JWT authentication, in the next chapter we'll start implementing our Angular frontend for building the UI of our social network application.