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Hands-On Software Engineering with Golang
Hands-On Software Engineering with Golang

Hands-On Software Engineering with Golang: Move beyond basic programming to design and build reliable software with clean code

By Achilleas Anagnostopoulos
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Book Jan 2020 640 pages 1st Edition
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Publication date : Jan 24, 2020
Length 640 pages
Edition : 1st Edition
Language : English
ISBN-13 : 9781838554491
Vendor :
Google
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Hands-On Software Engineering with Golang

A Bird's-Eye View of Software Engineering

"Hiring people to write code to sell is not the same as hiring people to design and build durable, usable, dependable software."
- Larry Constantine [6]

Through the various stages of my career, I have met several people that knew how to code; people whose skill level ranged from beginner to, what some would refer to as, guru. All those people had different backgrounds and worked for both start-ups and large organizations. For some, coding was seen as a natural progression from their CS studies, while others turned to coding as part of a career change decision.

Regardless of all these differences, all of them had one thing in common: when asked to describe their current role, all of them used the term software engineer. It is quite a common practice for job candidates to use this term in their CVs as the means to set themselves...

What is software engineering?

Before we dive deeper into this chapter, we need to establish an understanding of some of the basic terms and concepts around software engineering. For starters, how do we define software engineering and in what ways does it differ from software development and programming in general? To begin answering this question, we will start by examining the formal definition of software engineering, as published in IEEE's Standard Glossary of Software Engineering Terminology [7]:

"Software engineering is defined as the application of a systematic, disciplined, quantifiable approach to the development, operation, and maintenance of software."

The main takeaway from this definition is that authoring code is just one of the many facets of software engineering. At the end of the day, any capable programmer can take a well-defined specification and...

Types of software engineering roles

As we discussed in the previous section, software engineering is an inherently complex, multi-stage process. In an attempt to manage this complexity, organizations around the world have invested a lot of time and effort over the years to break the process down into a set of well-defined stages and train their engineering staff to efficiently deal with each stage.

Some software engineers strive to work across all the stages of the Software Development Life Cycle (SDLC), while others have opted to specialize in and master a particular stage of the SDLC. This gave rise to a variety of software engineering roles, each one with a different set of responsibilities and a required set of skills. Let's take a brief look at the most common software engineering roles that you may encounter when working with both small- and large-sized organizations...

A list of software development models that all engineers should know

The software engineering definition from the previous section alludes to the fact that software engineering is a complicated, multi-stage process. In an attempt to provide a formal description of these stages, academia has put forward the concept of the SDLC.

The SDLC is a systematic process for building high-quality software that matches the expectations of the end user or customer while ensuring that the project's cost stays within a reasonable bound.

Over the years, there has been an abundance of alternative model proposals for facilitating software development. The following diagram is a timeline illustrating the years when some of the most popular SDLC models were introduced:

Figure 1: A timeline for the software development models that will be presented in this chapter

In the upcoming sections, we...

Summary

Through the course of this chapter, we briefly discussed the different types of roles that you may encounter when working with companies of various sizes, as well as the special set of skills that each role depends on.

We started by examining a broad list of popular models, methodologies, and frameworks for delivering software, ranging from the traditional models that advocate a top-bottom approach (waterfall, iterative enhancement) to agile models that are better suited for the fast-paced and constantly changing environment that contemporary organizations operate in.

By reaching the end of this chapter, you should have acquainted yourself with the pros and cons of each model and the situations where each model should be applied. I sincerely hope that this knowledge will prove useful the next time you need to decide on which software development model to use for your next...

Questions

  1. What is the definition of software engineering?
  2. What are some of the questions that every SWE should be able to answer?
  3. Compare the role of an SWE and an SRE. What are the key differences between the two roles?
  4. Name some of the deficiencies of the waterfall model. Explain how the iterative enhancement model attempts to address those deficiencies.
  5. What are the most common sources of waste according to the lean development model?
  6. Provide an example where focusing all the optimization efforts on a single step of the development process can have a negative effect on the efficiency of the end-to-end process.
  7. What are the key responsibilities of the PO and the SM in the Scrum framework?
  8. What is the role of retrospectives in Scrum? What topics should the team be discussing and what should be the expected outcome of each retrospective session?
  9. Why are automation and measuring...

Further reading

  1. Anderson, David: Kanban: Successful Evolutionary Change in Your Technology Business: Blue Hole Press, 2010 — ISBN 0984521402 (https://www.worldcat.org/title/kanban-successful-evolutionary-change-in-your-technology-business/oclc/693773272).
  2. Basili, R.; Turner, J.: Iterative Enhancement: A Practical Technique for Software Development. In: IEEE Transactions on Software Engineering Vol. 1 (1975), pp. 390–396.
  1. Beck, Kent; Beedle, Mike; Bennekum, Arie van; Cockburn, Alistair; Cunningham, Ward; Fowler, Martin; Grenning, James; Highsmith, Jim; et al.: Manifesto for Agile Software Development.
  2. Beyer, Betsy; Jones, Chris; Petoff, Jennifer; Murphy, Niall Richard: Site Reliability Engineering: How Google Runs Production Systems. (https://landing.google.com/sre/sre-book/toc/index.html) (https://www.worldcat.org/title/site-reliability-engineering/oclc/1112558638...
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Key benefits

  • Apply best practices to produce lean, testable, and maintainable Go code to avoid accumulating technical debt
  • Explore Go’s built-in support for concurrency and message passing to build high-performance applications
  • Scale your Go programs across machines and manage their life cycle using Kubernetes

Description

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.

What you will learn

Understand different stages of the software development life cycle and the role of a software engineer Create APIs using gRPC and leverage the middleware offered by the gRPC ecosystem Discover various approaches to managing package dependencies for your projects Build an end-to-end project from scratch and explore different strategies for scaling it Develop a graph processing system and extend it to run in a distributed manner Deploy Go services on Kubernetes and monitor their health using Prometheus

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Product Details


Publication date : Jan 24, 2020
Length 640 pages
Edition : 1st Edition
Language : English
ISBN-13 : 9781838554491
Vendor :
Google
Category :

Table of Contents

21 Chapters
Preface Chevron down icon Chevron up icon
1. Section 1: Software Engineering and the Software Development Life Cycle Chevron down icon Chevron up icon
2. A Bird's-Eye View of Software Engineering Chevron down icon Chevron up icon
3. Section 2: Best Practices for Maintainable and Testable Go Code Chevron down icon Chevron up icon
4. Best Practices for Writing Clean and Maintainable Go Code Chevron down icon Chevron up icon
5. Dependency Management Chevron down icon Chevron up icon
6. The Art of Testing Chevron down icon Chevron up icon
7. Section 3: Designing and Building a Multi-Tier System from Scratch Chevron down icon Chevron up icon
8. The Links 'R'; Us Project Chevron down icon Chevron up icon
9. Building a Persistence Layer Chevron down icon Chevron up icon
10. Data-Processing Pipelines Chevron down icon Chevron up icon
11. Graph-Based Data Processing Chevron down icon Chevron up icon
12. Communicating with the Outside World Chevron down icon Chevron up icon
13. Building, Packaging, and Deploying Software Chevron down icon Chevron up icon
14. Section 4: Scaling Out to Handle a Growing Number of Users Chevron down icon Chevron up icon
15. Splitting Monoliths into Microservices Chevron down icon Chevron up icon
16. Building Distributed Graph-Processing Systems Chevron down icon Chevron up icon
17. Metrics Collection and Visualization Chevron down icon Chevron up icon
18. Epilogue Chevron down icon Chevron up icon
19. Assessments Chevron down icon Chevron up icon
20. Other Books You May Enjoy Chevron down icon Chevron up icon

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