Moving to microservices

The limitations of a monolithic architecture for Helping Hands can be addressed by separating out the components along with the database as a microservice. These services can then make informed choices about the technology stack and database that suit them well. These services can be developed, changed, and deployed in isolation as per the concepts of a microservices-based architecture. To identify the bounded context for the components of an existing monolithic application, it is recommended to look at the database access pattern and related business logic first, isolate them, and then look at the possibilities to isolate the components further based on business capabilities.

Isolating services by persistence

In the existing monolithic application of Helping Hands, the consumers and providers database tables are accessed by all the core components of the system, as shown in the following diagram. These tables are prime candidates for being wrapped around a service...