What are microservices and how do API gateways work?

What are microservices and how do they differ from monolithic architectures?

Microservices are an architectural style that structures an application as a collection of small, independent services. Unlike monolithic architectures, where all components are interconnected and run as a single unit, microservices allow for more flexibility, scalability, and easier maintenance.

Can you explain the role of API gateways in microservices?

API gateways act as a single entry point for clients to interact with multiple microservices. They handle requests, route them to the appropriate service, and can also manage cross-cutting concerns like authentication, logging, and rate limiting.

What are some advantages of using microservices with API gateways?

Using microservices with API gateways offers several advantages, including improved scalability, easier deployment, better fault isolation, and enhanced security through centralized management of API access.

Are there any challenges associated with microservices and API gateways?

Yes, challenges include increased complexity in managing multiple services, potential latency issues due to the additional layer of the API gateway, and the need for robust monitoring and logging to track service interactions.