In recent years, building modern applications has changed from what has been seen historically. Usually, in the past, systems were developed with a single, large block of code (referred to as a monolithic design) and would operate fairly well for smaller applications, but with time, as they got larger and more complex, the method of writing software became more of a hindrance to the applications as they required more users and increased speed.Now, companies need their applications to be able to grow quickly, adapt to changes quickly, and be able to support millions of users without any impact on performance, and that is where microservice architecture is so relevant. Microservice architecture has become the way to design scalable applications because applications can be broken into smaller, individual services that can work independently from each other.