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You're reading from Hands-On Serverless Computing Build, run and orchestrate serverless applications using AWS Lambda, Microsoft Azure Functions, and Google Cloud Functions

Product type Paperback

Published in Jul 2018

Publisher Packt

ISBN-13 9781788836654

Length 350 pages

Edition 1st Edition

Tools

AWS

Concepts

Serverless

Author (1):

Kuldeep Chowhan

View More author details

Table of Contents (23) Chapters

Title Page

Dedication

Packt Upsell

Foreword

Contributors

Preface

1. What is Serverless Computing? FREE CHAPTER

2. Development Environment, Tools, and SDKs

3. Getting Started with AWS Lambda

4. Triggers and Events for AWS Lambda

5. Your First Serverless Application on AWS

6. Serverless Orchestration on AWS

7. Getting Started with Azure Functions

8. Triggers and Bindings for Azure Functions

9. Your First Serverless Application on Azure

10. Getting Started with Google Cloud Functions

11. Triggers and Events for Google Cloud Functions

12. Your First Serverless Application on Google Cloud

13. Reference Architecture for a Web App

14. Reference Architecture for a Real-time File Processing

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Index

Triggers for AWS Lambda

Triggers are how AWS Lambda gets invoked. Triggers are custom events that happen across different AWS services. With these triggers in place, AWS Lambda will get invoked, process the custom event, and generate the response to the service that has been defined in AWS Lambda. For AWS Lambda to be invoked, you will need to have at least one event source or trigger. You can have multiple event sources or triggers for your Lambda to get invoked. Let's look at the different triggers or event sources that are available for different AWS services.

API Gateway Trigger

API Gateway + AWS Lambda allows you to invoke Lambda functions over HTTP(s). With API Gateway, you get a custom REST endpoint, and you can configure API Gateway to invoke AWS Lambda on different HTTP methods, such as PUT, GET, DELETE, and other HTTP methods. With this integration in place, when you invoke the custom REST endpoint that has been configured by API Gateway, API Gateway will invoke the configured AWS...