Major building blocks and concerns

Continuing on our reactive journey, we will now talk about major building blocks of reactive programming (functional reactive programming to be precise) and what concerns a reactive microservice should actually handle. The following is a list of major building blocks of reactive programming and what they all handle. A reactive microservice should be designed on similar principles. These building blocks will allow us to make sure that a microservice is isolated, has a single responsibility, can pass a message asynchronously, and is mobile.