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.

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Table of Contents (16 chapters)
Preface
Preface
Who this book is for
What this book covers
To get the most out of this book
Get in touch
Free Chapter
1
What is Serverless Computing?
What is Serverless Computing?
What is serverless computing?
What is FaaS?
The benefits of serverless computing
What serverless computing is not
Limits to serverless computing
Summary
2
Development Environment, Tools, and SDKs
Development Environment, Tools, and SDKs
Development environment and tools
Visual Studio Code
Node.js
Postman
SDKs
Summary
3
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
Summary
4
Triggers and Events for AWS Lambda
Triggers and Events for AWS Lambda
Triggers for AWS Lambda
Summary
5
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)
Summary
6
Serverless Orchestration on AWS
Serverless Orchestration on AWS
What is AWS Step Functions?
Summary
7
Getting Started with Azure Functions
Getting Started with Azure Functions
An introduction to Azure Functions
Azure portal
Configuring Azure Functions
Summary
8
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
Timer trigger
Summary
9
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)
Summary
10
Getting Started with Google Cloud Functions
Getting Started with Google Cloud Functions
Google Cloud Serverless Platform
Google Cloud Console
Configuring Google Cloud Functions
Summary
11
Triggers and Events for Google Cloud Functions
Triggers and Events for Google Cloud Functions
Technical requirements
Events
Triggers
Summary
12
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)
Summary
13
Reference Architecture for a Web App
Reference Architecture for a Web App
Technical requirements
Reference architecture
Hotel search
Add to cart
Summary
14
Reference Architecture for a Real-time File Processing
Reference Architecture for a Real-time File Processing
Technical requirements
Reference architecture
Photo processing application
Summary
15
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Events

Let's learn how to create and assign events to Google Cloud Functions. Associating these triggers with Google Cloud Functions will execute a function when an event is fired on the Google Cloud services. Within a Google Cloud Platform, such as AWS and Azure, cloud events are emitted when there is a change in the data in the storage system or database when new files are added to Google Cloud Storage or messages that are being sent to Google Cloud Pub/Sub. At the time of writing (July 2018), Google Cloud Functions only supported the following four event types:

Let's learn more about the event parameter and triggers for Google Cloud Functions in the next sections.

Event parameter

...
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