The database-is-the-service pattern for microservice architectures

Monolithic applications are the most common development paradigm but they have some drawback related to the maintenance, upgrading and scaling. Microservice architectures were recently proposed in order to solve some of these issues, because they are simpler to scale and more flexible. Both architectures use a database and this component can act as a component for micro service. In the paper we present a pattern for microservice architecture that uses a database as component, and this pattern is used in an health record application. We explain also the requirements of the database for this pattern and the advantages achieved.