Microservices<\/a> architecture is a software development technique that arranges an application as a collection of loosely coupled services. In this distributed environment, the API<\/a> acts as the connective tissue, enabling communication between disparate components. Unlike monolithic structures, Microservices<\/a> allow for independent scaling and Continuous Deployment<\/a>, which are essential for modern Cloud-Native<\/a> applications.<\/p> Effective communication between services typically relies on protocols such as REST<\/a>, gRPC<\/a>, or GraphQL<\/a>. To manage the resulting complexity, organizations often deploy an API Gateway<\/a> to handle request routing, Authentication<\/a>, and Rate Limiting<\/a>. According to documentation from AWS<\/a> and Martin Fowler<\/a>, this architecture promotes Fault Tolerance<\/a> and technological flexibility.<\/p> Deployment is frequently managed using Containerization<\/a> tools like Docker<\/a>, while orchestration is handled by Kubernetes<\/a>. For managing internal service-to-service traffic, a Service Mesh<\/a> like Istio<\/a> provides advanced Traffic Management<\/a> and observability. Detailed architectural patterns can be explored through resources provided by Microsoft Azure<\/a>.<\/p>