Module Introduction

1. What This Module Covers

Every module so far taught a concept, then showed how it appears in an interview. This module turns that around. Now you get full interview case studies, walked end to end, with the concepts showing up only where a real answer needs them.

This is the format your microservices knowledge actually gets examined in. Nobody asks you to "define the outbox pattern." The outbox pattern is a way to save a database change and its event in one transaction, so the event cannot get lost.

What you get asked instead is "design order processing for an e-commerce site