What are Microservices?

  • Software is created using an architectural and organisational strategy known as microservices, which consists of small, autonomous services that communicate over clearly defined APIs. These services are run by tiny, independent teams. Microservices architectures make applications easier to scale andfaster to develop, enabling innovation and acceleratingtime-to-market for new features.

  • Monolithic vs. Microservices Architecture

    With monolithic architectures, all processes are tightly coupled and run as a single service. This means that if one process of the application experiences a spike in demand, the entire architecture must be scaled. Adding or improving a monolithic application’s features becomes more complex as the code base grows. This complexity limits experimentation and makes it difficult to implement new ideas. Monolithic architectures add risk for application availability because many dependent and tightly coupled processes increase the impact of a single process failure.

    With a microservices architecture, an application is built as independent components that run each application process as a service. These services communicate via a well-defined interface using lightweight APIs. Services are built for business capabilities and each service performs a single function. Because they are independently run, each service can be updated, deployed, and scaled to meet demand for specific functions of an application.

    Characteristics of Microservices

    In a microservices architecture, each component service can be created, deployed, run, and scaled independently of the other services. Services are not required to exchange any of their implementation or source code with other services. Individual component communication takes place

    Each service is tailored to a particular set of capabilities and focuses on addressing a particular issue. A service can be divided into smaller services if developers add more code to it over time and the service becomes complex.