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)

Planning your next steps

Although we are predominantly talking and discussing about Node.js throughout this book, the concepts and terminologies still apply to the other supported languages as well. For example, running unit and integration tests on your Java function code using JUnit, running simulated load tests with Apache JMeter, and so on. Make sure you try it out.

There are also ways in which you can completely automate the build, test, and deployment of your functions using a continuous integration and continuous deployment (CICD) pipeline. This involves using tools such as subversion or Git with a continuous integration tool or an automation server such as Jenkins. The flow is pretty straightforward. Whenever a developer commits code into Git, it triggers a Jenkins job workflow that runs a bunch of predefined unit tests across the code. If the code passes the tests, then...