What are microservices?
Microservices are a development approach of software architecture emerged especially to develop the modern Cloud-based applications. Whit that model, applications are broken up into smaller autonomous and independent services (microservices precisely), which communicate among themselves through well-defined API, with the aim to simplify the deployment and provide high-quality software programs swiftly. Indeed, microservices allow to scale easily and rapidly, by promoting the innovation and accelerating the development of new features.
Monolithic systems vs microservices
Microservices are in opposition to the traditional monolithic system used to develop standard applications, according to which each component is created into the same element. But monolithic method has its disadvantages. For instance, with large applications is more difficult to solve issues rapidly and deploy new features. With this kind of approach, all processes are connected together and performed as a single service. That means that when there is a peak in the requests, you need to re-size the entire architecture. Consequently, add or edit features become more complicated, and the experimentation and inclusion of new ideas is limited. At the same time, traditional architectures enlarge the risk of application’s availability , because the presence of strictly connected processes dependent from each other increases the impact of mistakes in a single process.