AWS Certified Advanced Networking - Specialty Exam Guide by Marko Sluga

Author:Marko Sluga
Language: eng
Format: mobi
Tags: COM048000 - COMPUTERS / Systems Architecture / Distributed Systems and Computing, COM043060 - COMPUTERS / Networking / Vendor Specific
Published: 2019-05-24T14:17:17+00:00

Introduction to API Gateway

The API Gateway service is a fully managed solution from AWS that gives developers the ability to create highly scalable and highly secure API endpoints. The service is designed with the developer in mind and makes it very easy to write and deploy API endpoints straight out of the Management Console.

With API Gateway, we can expose different types of applications running in AWS EC2 or ECS to the internet and allow for direct communication with any HTTP/HTTPS-enabled managed services such as S3 or DynamoDB. The service also gives us the ability to create an API that will send queries to a Lambda function. Lambda functions are not exposed to the internet so API Gateway provides an entry point to the Lambda environment as well. Additionally, we can expose services completely external to AWS in our on-premises data center or anywhere on the internet.

The following diagram demonstrates different types of clients connecting to API Gateway. API Gateway can forward requests from the clients to different kinds of backends as described in the preceding paragraph:

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