Microservices, a New Paradigm, a New Mindset. Microservice architecture is a new paradigm, which means it is not possible to completely understand with an Object Oriented (OO) mindset. Microservices are not just a nice new way to design systems, it is an architecture to better process large amounts of mindset.
Microservice architecture is a new paradigm, which means it is not possible to completely understand with an Object Oriented (OO) mindset. It doesn’t mean OO is not required, what it means is that we need additional knowledge.
I like to think a Microservice not just as a single entity, but as a network, because rarely a single Microservice will cover a complete use case end to end, usually you will need several Microservices to process a single request. There are many ways to achieve this. Let’s first review a wrong approach — Say we have three Microservices, and they communicate to each other using a synchronous request/response approach:
Under this approach, Microservice 1 will be idle until Microservices 2 and 3 finish processing.
If we implement same functionality using Objects instead services, we will get exactly same behavior: we need to wait for Objects 2 and 3 to finish before we can get a returned value from Object 1.
In Object Oriented Programming (OOP) this is cool, and there is nothing wrong with it, but in Microservices this is a performance issue.
Microservices are not just a nice new way to design systems, it is an architecture to better process large amounts of information, and in a network of Microservices we cannot accept idle services.
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