Build RESTful Microservices with AWS Lambda and API Gateway


599 students completed the lab in ~54m

Total available time: 1h:30m

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How to define Serverless APIs backed by AWS Lambda

Amazon API Gateway allows you to design RESTful interfaces and connect them with your favorite backend. You can design your own resources structure, add dynamic routing parameters, and develop custom authorizations logic. Each API resource can be configured independently, while each stage can have specific cache, throttling, and logging configurations.

This approach is particularly useful when you consider that each request and response can be attached to a custom mapping template, in order to perform custom data manipulation or improve API backward compatibility.

We will see how to define a simple API and how to connect it to AWS Lambda. This provides a nice way to obtain a scalable backend for modern web applications or mobile apps. We will configure custom stages, protect resources with an API key, and explain how to best connect API Gateway stages with AWS Lambda versions and aliases.

Lastly, we will learn about AWS Lambda's basic configuration, monitoring, and versioning.


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Follow these steps to learn by building helpful cloud resources

Logging in to the Amazon Web Services Console

Your first step to start the Lab experience

RESTful background

What does RESTful mean and how do you work with microservices?

Define new API Gateway Resources

How do you define models, resources and dynamic routes in API Gateway?

AWS Lambda Functions setup

Design and configuration of new Lambda Functions.

API Gateway backend configuration

Connect Lambda to API Gateway as serverless backend.

Best practices for Versions, Aliases and Stages

What's the best way to configure Lambda aliases and API Gateway stages?

API Keys and Usage Plans

Secure API Gateway with managed API Keys.

Enable CORS on API Gateway Resources

How to enable CORS to obtain browser-ready APIs.

API Gateway Caching and Throttling

Caching and throttling configuration for stages and usage plans.

Clean up API Resources and Lambda Functions

How to delete your APIs and Lambda functions.