Microservice
Microservice is a software architecture style that structures an application as a collection of loosely coupled, independently deployable services, each focused on a specific business capability. These services communicate through lightweight mechanisms like HTTP/REST or messaging protocols, enabling teams to develop, scale, and update components separately without affecting the entire system. This approach contrasts with monolithic architectures, promoting agility, resilience, and scalability in complex applications.
Developers should adopt microservices when building large-scale, complex applications that require frequent updates, high availability, and scalability, such as e-commerce platforms, streaming services, or enterprise systems. It allows teams to use different technologies per service, accelerates development cycles through parallel work, and improves fault isolation, making it ideal for cloud-native environments and DevOps practices. However, it introduces challenges like distributed system complexity and inter-service communication overhead, so it's best suited for mature teams and projects where benefits outweigh these trade-offs.