Book Image

Mastering AWS Lambda

By : Yohan Wadia, Udita Gupta
Book Image

Mastering AWS Lambda

By: Yohan Wadia, Udita Gupta

Overview of this book

AWS is recognized as one of the biggest market leaders for cloud computing and why not? It has evolved a lot since the time it started out by providing just basic services such as EC2 and S3 and today; they go all the way from IoT to Machine Learning, Image recognition, Chatbot Frameworks, and much more! One of those recent services that is also gaining a lot of traction is AWS Lambda! Although seemingly simple and easy to use, Lambda is a highly effective and scalable compute service that provides developers with a powerful platform to design and develop Serverless event-driven systems and applications. The book begins with a high-level introduction into the world of Serverless computing and its advantages and use cases, followed by a deep dive into AWS Lambda! You’ll learn what services AWS Lambda provides to developers; how to design, write, and test Lambda functions; as well as monitor and troubleshoot them. The book is designed and accompanied with a vast variety of real-world examples, use cases, and code samples that will enable you to get started on your Serverless applications quickly. By the end of the book, you will have gained all the skills required to work with AWS Lambda services!
Table of Contents (11 chapters)

Exploring Lambda and event mapping

We have already seen and learned a bit about how Lambda uses a notion called event mapping to map a particular AWS service to a corresponding Lambda function. In this section, we will be diving a bit further into event mapping with the help of some interesting real world use cases that most of you would find useful in your own AWS environments.

Mapping Lambda with S3

You can easily write and invoke Lambda functions for processing objects stored in an S3 bucket. The functions can be triggered using a set of notification configurations which trigger a corresponding Lambda function into action. The following is a list of few such notification configurations that can be used for triggering functions...