Lagom is a microservice-based framework. Its four main features (Service API / Persistence API / Development and Production Environment) will be introduced. Lagom's main goal is to create new microservices and then launch them all with a single command. Code deployments become instantly visible. Furthermore, Lagom supports distributed persistent patterns as Event Sourcing (ES) with Command Query Responsability Segregation (CQRS), in contrast to the traditional centralized database.