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AWS Lambda in Action: Event-driven serverless applications by Danilo Poccia

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Chapter 2. Your first Lambda function

This chapter covers

  • Creating your first AWS Lambda function
  • Understanding function configurations and settings
  • Testing functions from the web console
  • Using the AWS command-line interface to call functions

In the first chapter you learned how AWS Lambda functions work and how they can be used synchronously (returning a result) or asynchronously (for example, subscribing a function to an event). In the second part of the chapter you learned how a group of functions can be used to build an event-driven application in which the logic is bound to events coming from outside (a client application) or inside (relationships among data).

It’s now time to build your first functions and see how they can be used ...

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