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

So, once again, we come towards the end of yet another interesting chapter! In this chapter, we learnt a bit about the importance of testing and why you should fall into a habit of testing your functions regularly. We also learned about the various ways in which we can effectively test our functions, either by using a combination of testing frameworks such as Mocha and Chai or by leveraging some more recent and way simpler npm modules such as the lambda-tester module. We also saw how a Lambda function could potentially be used as a test harness and perform both unit as well as load tests on other Lambda functions with the help of the Lambda test harness blueprint. Towards the end, we topped it all off with a pinch of recommendations, best practices and few worthy next steps as well.

In the next chapter, we will be diving a bit further into the amazing world of Lambda and...