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Hands-On Serverless Computing

Hands-On Serverless Computing

By : Kuldeep Chowhan
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Hands-On Serverless Computing

Hands-On Serverless Computing

By: Kuldeep Chowhan

Overview of this book

Serverless applications and architectures are gaining momentum and are increasingly being used by companies of all sizes. Serverless software takes care of many problems that developers face when running systems and servers, such as fault tolerance, centralized logging, horizontal scalability, and deployments. You will learn how to harness serverless technology to rapidly reduce production time and minimize your costs, while still having the freedom to customize your code, without hindering functionality. Upon finishing the book, you will have the knowledge and resources to build your own serverless application hosted in AWS, Microsoft Azure, or Google Cloud Platform, and will have experienced the benefits of event-driven technology for yourself. This hands-on guide dives into the basis of serverless architectures and how to build them using Node.js as a programming language, Visual Studio Code for code editing, and Postman for quickly and securely developing applications without the hassle of configuring and maintaining infrastructure on three public cloud platforms.
Table of Contents (16 chapters)
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AWS Lambda Function–Hello World

Let's look at how to create a Hello World AWS Lambda function using AWS Console. I'm assuming you already have an AWS account with admin access and know how to access AWS Console through signing in from https://aws.amazon.com/.

Once you have signed in to AWS Console, navigate to Lambda's home page: https://console.aws.amazon.com/lambda/home?region=us-east-1#/functions.

  1. From Lambda's home page, click Create Function, as shown here:
  1. Select Author from scratch for creating our Hello World Lambda function:
  1. In the Author from scratch section, enter the following details to create a Hello World AWS Lambda (FaaS) function. I'm going to talk in depth about security in a later section of this chapter; with that in mind, I'm going to skip some details around IAM Roles and Policy Templates now:
    • Set Name as myHelloWorldFunction...
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Hands-On Serverless Computing
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