Book Image

Hands-On Software Engineering with Golang

By : Achilleas Anagnostopoulos
Book Image

Hands-On Software Engineering with Golang

By: Achilleas Anagnostopoulos

Overview of this book

Over the last few years, Go has become one of the favorite languages for building scalable and distributed systems. Its opinionated design and built-in concurrency features make it easy for engineers to author code that efficiently utilizes all available CPU cores. This Golang book distills industry best practices for writing lean Go code that is easy to test and maintain, and helps you to explore its practical implementation by creating a multi-tier application called Links ‘R’ Us from scratch. You’ll be guided through all the steps involved in designing, implementing, testing, deploying, and scaling an application. Starting with a monolithic architecture, you’ll iteratively transform the project into a service-oriented architecture (SOA) that supports the efficient out-of-core processing of large link graphs. You’ll learn about various cutting-edge and advanced software engineering techniques such as building extensible data processing pipelines, designing APIs using gRPC, and running distributed graph processing algorithms at scale. Finally, you’ll learn how to compile and package your Go services using Docker and automate their deployment to a Kubernetes cluster. By the end of this book, you’ll know how to think like a professional software developer or engineer and write lean and efficient Go code.
Table of Contents (21 chapters)
1
Section 1: Software Engineering and the Software Development Life Cycle
3
Section 2: Best Practices for Maintainable and Testable Go Code
7
Section 3: Designing and Building a Multi-Tier System from Scratch
14
Section 4: Scaling Out to Handle a Growing Number of Users
18
Epilogue

Designing robust, secure, and backward-compatible REST APIs

Whenever an engineer hears the word API, REST, the acronym for Representational State Transfer, is undoubtedly one of the first words that springs to mind. Indeed, the vast majority of online services and applications that people use on a daily basis are using a REST API to communicate with the backend servers.

The proliferation of what we commonly refer to as RESTful APIs is indeed not coincidental. REST, as an architectural style for building applications for the web, offers quite a few enticing advantages over alternatives such as the Simple Object Access Protocol (SOAP):

  • Ease of interaction: A web browser or a command tool such as curl is all that is required to interact with REST endpoints
  • The majority of programming languages ship with built-in support for performing HTTP requests
  • It is quite easy to intercept...