Book Image

Hands-On Serverless Computing

By : Kuldeep Chowhan

Book Image

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.

Preface

Who this book is for

What this book covers

To get the most out of this book

Free Chapter

What is Serverless Computing?

What is Serverless Computing?

What is serverless computing?

The benefits of serverless computing

What serverless computing is not

Limits to serverless computing

Development Environment, Tools, and SDKs

Development Environment, Tools, and SDKs

Development environment and tools

Visual Studio Code

Getting Started with AWS Lambda

Getting Started with AWS Lambda

What is AWS Lambda?

AWS Lambda Function–Hello World

Configuring options for AWS Lambda

Securing AWS Lambda using IAM

Triggers and Events for AWS Lambda

Triggers and Events for AWS Lambda

Triggers for AWS Lambda

Your First Serverless Application on AWS

Your First Serverless Application on AWS

Technical requirements

Your first serverless app (using the AWS Console)

Your first serverless app (using the AWS SAM)

Serverless Orchestration on AWS

Serverless Orchestration on AWS

What is AWS Step Functions?

Getting Started with Azure Functions

Getting Started with Azure Functions

An introduction to Azure Functions

Configuring Azure Functions

Triggers and Bindings for Azure Functions

Triggers and Bindings for Azure Functions

Azure Function triggers and bindings

Azure services–triggers and bindings

Azure Cosmos DB

Azure Event Grid

HTTP and webhook bindings

Your First Serverless Application on Azure

Your First Serverless Application on Azure

Technical requirements

Your first serverless app (using the Azure portal)

Your first Serverless app (using Azure Functions Core Tools)

Getting Started with Google Cloud Functions

Getting Started with Google Cloud Functions

Google Cloud Serverless Platform

Google Cloud Console

Configuring Google Cloud Functions

Triggers and Events for Google Cloud Functions

Triggers and Events for Google Cloud Functions

Technical requirements

Your First Serverless Application on Google Cloud

Your First Serverless Application on Google Cloud

Technical requirements

Your first serverless app (using the Google Cloud Console)

Your first serverless app (on a local workstation)

Reference Architecture for a Web App

Reference Architecture for a Web App

Technical requirements

Reference architecture

Reference Architecture for a Real-time File Processing

Reference Architecture for a Real-time File Processing

Technical requirements

Reference architecture

Photo processing application

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Your First Serverless Application on AWS

In this chapter, we will learn about how to write serverless applications to run on AWS using Node.js, the AWS Serverless Application Model (SAM), how to deploy a serverless application to AWS using the AWS SAM, how to test a serverless application, and how to trigger a serverless application using Amazon API Gateway (HTTP event trigger).

There are multiple ways to create serverless apps on the AWS platform. This chapter covers two of those methods:

Firstly, we will look into how we can create an AWS Lambda function through the AWS Console, and then test it through the Console.
Secondly, we will look into how we can create an AWS Lambda function through Visual Studio Code, deploy it using the AWS SAM, integrate it with API Gateway, and test it by making HTTP calls to the Amazon API Gateway endpoint.

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