Step 17: Performance

Step 16: Modularity

Step 15: Using a REST API

Step 14: Migrating to PostgreSQL

Step 13: Authentication

Step 12: Adding and removing chats

Step 11: Users

Step 10: Live updates with GraphQL subscriptions

Step 9: Type safety with GraphQL Code Generator

Step 8: Sending messages with GraphQL mutations

Step 7: Caching with Apollo-Client

Step 6: Creating an app router and implementing a chat room

Step 5: Testing

Step 4: Transition to GraphQL

Step 3: Setup a basic Node.JS server with a basic REST endpoint