Become an AWS pro by learning to run serverless applications with AWS Lambda. Developed by AWS Solution Certified Architects. Get hands-on, no setup, no cleanup, no hassle.

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In the world of modern development, serverless computing has become table stakes. Serverless computing has seen a major uptake with AWS Lambda having an increased adoption of 667% in 2018. Companies are making the switch to serverless for shorter time to market and decreased operational costs, but for you the advantage lies in the ability to offload the burden of managing infrastructure to serverless platforms, so you can focus on building even better apps.

In this course, you will learn how to run serverless applications using AWS Lambda. You’ll start with the basics such as creating a web service where you’ll learn the steps to deploy an AWS Serverless Application Model (SAM). You’ll then move on to more advanced topics such as handling HTTP Requests, using external storage, and managing sessions and user workflows. By the end of this course, you will be ready to work with AWS Lambda in a professional setting, and you’ll have a great, transferable skill that employers will love to see.

Running Serverless Applications with AWS Lambda

* Break the Lambda function for showing the HTML form so it blows up during processing. See how API Gateway handles that kind of situation and check whether you can find the error in the CloudWatch logs.

* Try wrapping the error into a `try/catch` block that will return a valid HTTP response explaining the error. For example, use HTTP code `500`, reserved for internal server errors. (Hint: you'll have to modify `html-response.js` to accept a custom status code.) See how the error report differs from the one when the function just blows up.

* Try implementing an HTTP redirect from a Lambda function (hint: use code `302` and put a destination URL into the `Location` header), and then navigate to the API URL from a browser to see the redirect in action.

You will have a firm grasp of​ the concepts discussed in this chapter after performing these interesting experiments!

Interesting Experiments

Getting Started

Setup Tools for Local Development

Creating a Web Service

Host a Serverless Application on AWS Lambda

Development and Troubleshooting

Core Features of AWS Lambda

Handling HTTP Requests

Using External Storage

Cheaper, Faster, Serverless

Handling Platform Events

Using Application Components

Managing Sessions and User Workflows

Designing Robust Applications

Deployment Options

Process Amazon SNS Notifications with AWS Lambda

Interesting Experiments