Serverless Developer Guide
Get started with API Gateway
Desktop and mobile browsers, command line clients, and applications all make requests to your 
web-based APIs. Your application API must handle these requests, scale based on incoming traﬃc, 
ensure secure access, and be available in multiple environments.
For serverless applications, API Gateway acts as the entry point, also called the “front door”, for 
your web-based applications.
You are likely familiar with how to use and setup back-end APIs in traditional application 
frameworks. In this starter, you will learn the essential role Amazon API Gateway plays in the 
request/response workﬂow. Additionally, API Gateway can optimize response time with cache, 
prevent function throttling, and defend against common network and transport layer DDoS 
attacks.
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