API Gateways in a Microservices Architecture
In a microservices architecture, where applications are built as a collection of small, independent services, API gateways serve as a central entry point for all external client requests. An API gateway acts as a mediator between clients and the individual microservices, providing a unified interface to access the system’s functionalities.
Rather than directly interacting with each microservice, clients communicate with the API gateway, which handles various responsibilities such as routing requests, enforcing security measures, performing transformations, and aggregating data from multiple microservices. It acts as a traffic controller, allowing clients to access the services they need without needing to know the specific details of each microservice’s API.