Event sourcing and other applications of append-only logs have experienced a renaissance in recent years. From git, to Kafka, to block chains, the use of append-only logs is on the rise. In this talk, Matt Ho will cover the benefits of event sourcing and how to get started with it using Go. He'll provide the background of event sourcing along with simple illustration of how event-sourcing might be applied to a domain entity. He'll go in-depth on how event sourcing can address challenges posed by transactional integrity, dual writes, and scaling – issues which are increasing in importance given the rise of REST-based microservices.