React puts our views on the screen, but where does our data come from? We often have a database in the back-end, but how do we stay up to date as data changes? How can we make sure that computed values and aggregations are cached efficiently? How does all of this work with a client-side cache, and offline functionality? This talk will open our eyes to the complexities in this space, and will introduce some general patterns that we can use to easily build realtime and offline-friendly …