Book Image

Hands-On Serverless Applications with Go

By : Mohamed Labouardy
Book Image

Hands-On Serverless Applications with Go

By: Mohamed Labouardy

Overview of this book

Serverless architecture is popular in the tech community due to AWS Lambda. Go is simple to learn, straightforward to work with, and easy to read for other developers; and now it's been heralded as a supported language for AWS Lambda. This book is your optimal guide to designing a Go serverless application and deploying it to Lambda. This book starts with a quick introduction to the world of serverless architecture and its benefits, and then delves into AWS Lambda using practical examples. You'll then learn how to design and build a production-ready application in Go using AWS serverless services with zero upfront infrastructure investment. The book will help you learn how to scale up serverless applications and handle distributed serverless systems in production. You will also learn how to log and test your application. Along the way, you'll also discover how to set up a CI/CD pipeline to automate the deployment process of your Lambda functions. Moreover, you'll learn how to troubleshoot and monitor your apps in near real-time with services such as AWS CloudWatch and X-ray. This book will also teach you how to secure the access with AWS Cognito. By the end of this book, you will have mastered designing, building, and deploying a Go serverless application.

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Table of Contents (17 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
Go Serverless
Go Serverless
The serverless paradigm
AWS Lambda
Go serverless
Summary
Questions
2
Getting Started with AWS Lambda
Getting Started with AWS Lambda
Technical requirements
Setting up the AWS environment
Setting up the Go environment
Summary
Questions
3
Developing a Serverless Function with Lambda
Developing a Serverless Function with Lambda
Technical requirements
Writing a Lambda function in Go
Execution role
Deployment package
Event testing
Summary
Questions
4
Setting up API Endpoints with API Gateway
Setting up API Endpoints with API Gateway
Technical requirements
Getting started with API Gateway
Building a RESTful API
Summary
5
Managing Data Persistence with DynamoDB
Managing Data Persistence with DynamoDB
Technical requirements
Setting up DynamoDB
Working with DynamoDB
Summary
Questions
6
Deploying Your Serverless Application
Deploying Your Serverless Application
Lambda CLI commands
Versions and aliases
Summary
7
Implementing a CI/CD Pipeline
Implementing a CI/CD Pipeline
Technical requirements
Continuous Integration and deployment workflow
Automating the deployment of Lambda functions
Summary
Questions
8
Scaling Up Your Application
Scaling Up Your Application
Technical requirements
Load testing and scaling
Concurrent execution
Summary
9
Building the Frontend with S3
Building the Frontend with S3
Technical requirements
Single Page Application
S3 static website hosting
API documentation
Summary
Questions
10
Testing Your Serverless Application
Testing Your Serverless Application
Technical requirements
Unit testing
Integration testing
Load testing
Summary
Questions
11
Monitoring and Troubleshooting
Monitoring and Troubleshooting
Monitoring and debugging with AWS CloudWatch
Tracing with AWS X-Ray
Summary
12
Securing Your Serverless Application
Securing Your Serverless Application
Technical requirements
Authentication and user control access
Encrypted environment variables
Logging AWS Lambda API calls with CloudTrail
Vulnerability scanning for your dependencies
Summary
Questions
13
Designing Cost-Effective Applications
Designing Cost-Effective Applications
Lambda pricing model
Optimal memory size
Code optimization
Lambda cost and memory tracking
Summary
14
Infrastructure as Code
Infrastructure as Code
Technical requirements
Deploying AWS Lambda with Terraform
Deploying AWS Lambda with CloudFormation
Deploying AWS Lambda with SAM
Summary
Questions
15
Assessments
Assessments
Chapter 1: Go Serverless
Chapter 2: Getting Started with AWS Lambda
Chapter 3: Developing a Serverless Function with Lambda
Chapter 5: Managing Data Persistence with DynamoDB
Chapter 7: Implementing a CI/CD Pipeline
Chapter 9: Building the Frontend with S3
Chapter 10: Testing Your Serverless Application
Chapter 12: Securing Your Serverless Application
Chapter 14:
16
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