Migrating from a Monolith to a New Service

At NDC Copenhagen, the Stack Overflow team walks us through slicing out a tiny feature from a giant monolith, shipping it off to its own microservice, and spinning up a fresh UI as a microfrontend—all without causing a single user to notice (aka zero downtime!).

Along the way, they tackle the nitty-gritty of eventual consistency, juggle multi-tenant concerns, untangle circular references, wrestle with CORS, and spill the tea on why they picked certain approaches (and scrapped others). Expect real-world war stories and practical takeaways for your next migration.

Watch on YouTube