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)

Summary

It has been a long yet awesome chapter to learn. So let us summarize what we have learnt so far. First up, we deep dived into the Lambda programming model and understood each of its sub components (handlers, context objects, errors and exceptions) with easy to follow examples. Next, we covered how to effectively write and develop functions using the concepts of versioning and aliases. Finally, we concluded the chapter by understanding the use of environment variables and also looked at a few essentials recommendations and best practices to keep in mind when writing Lambda functions.

In the next chapter we will be learning about the importance of testing your code along with some really useful testing tools and frameworks. So stick around, we are just starting out!