Book Image

Building Modern CLI Applications in Go

By : Marian Montagnino
Book Image

Building Modern CLI Applications in Go

By: Marian Montagnino

Overview of this book

Although graphical user interfaces (GUIs) are intuitive and user-friendly, nothing beats a command-line interface (CLI) when it comes to productivity. Many organizations settle for a GUI without searching for alternatives that offer better accessibility and functionality. If this describes your organization, then pick up this book and get them to rethink that decision. Building Modern CLI Applications in Go will help you achieve an interface that rivals a GUI in elegance yet surpasses it in high-performance execution. Through its practical, step-by-step approach, you’ll learn everything you need to harness the power and simplicity of the Go language to build CLI applications that revolutionize the way you work. After a primer on CLI standards and Go, you’ll be launched into tool design and proper framework use for true development proficiency. The book then moves on to all things CLI, helping you master everything from arguments and flags to errors and API calls. Later, you’ll dive into the nuances of empathic development so that you can ensure the best UX possible, before you finish up with build tags, cross-compilation, and container-based distribution. By the end of this UX book, you’ll be fully equipped to take the performance and flexibility of your organization’s applications to the next level.
Table of Contents (21 chapters)
1
Part 1: Getting Started with a Solid Foundation
6
Part 2: The Ins and Outs of a CLI
10
Part 3: Interactivity and Empathic Driven Design
14
Part 4: Building and Distributing for Different Platforms

Using Containers for Distribution

In this chapter, we’ll explore the world of containerization and examine the many reasons why you should use Docker containers for testing and distributing your applications. The term containerization refers to a style of software packaging that makes it simple to deploy and run in any setting. First, we’ll go over the basics of Docker, covered by a simple application that can be built into an image and run as a container. Then, we return to our audiofile application, for a more advanced example, to learn how to create multiple Docker containers that can be composed and run together. These examples give you not only an understanding of the basic flags used for running containers but also some advanced flags that show you how to run containers with mapped network stacks, volumes, and ports.

We also explain how to use Docker containers for integration testing, which increases your confidence, because, let’s face it, mocking API...