Which service helps to manage API traffic?

Amazon API Gateway is the service designed specifically to manage API traffic. It provides a robust framework for creating, deploying, and managing APIs at scale, which is crucial for developers and organizations that need to expose their backend services and applications through APIs.

API Gateway can handle thousands of concurrent API calls, manage traffic flows, and offer features such as throttling and caching to ensure reliable API interactions. It also integrates seamlessly with various AWS services, including AWS Lambda, allowing for the execution of code in response to API requests without provisioning or managing servers.

By using Amazon API Gateway, developers can easily create APIs that serve as a front door for applications to access data, business logic, or functionalities from back-end services in a secure manner. This plays a vital role in microservices architectures and serverless applications, where efficient traffic management is essential to the application's performance and user experience.