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Crystal Programming

You're reading from Crystal Programming A project-based introduction to building efficient, safe, and readable web and CLI applications

Product type Paperback

Published in May 2022

Publisher Packt

ISBN-13 9781801818674

Length 356 pages

Edition 1st Edition

Languages

Crystal

Concepts

Programming Language

Authors (2):

George Dietrich

Guilherme Bernal

View More author details

Table of Contents (26) Chapters

Preface

1. Part 1: Getting Started

2. Chapter 1: An Introduction to Crystal FREE CHAPTER

3. Chapter 2: Basic Semantics and Features of Crystal

4. Chapter 3: Object-Oriented Programming

5. Part 2: Learning by Doing – CLI

6. Chapter 4: Exploring Crystal via Writing a Command-Line Interface

7. Chapter 5: Input/Output Operations

8. Chapter 6: Concurrency

9. Chapter 7: C Interoperability

10. Part 3: Learn by Doing – Web Application

11. Chapter 8: Using External Libraries

12. Chapter 9: Creating a Web Application with Athena

13. Part 4: Metaprogramming

14. Chapter 10: Working with Macros

15. Chapter 11: Introducing Annotations

16. Chapter 12: Leveraging Compile-Time Type Introspection

17. Chapter 13: Advanced Macro Usages

18. Part 5: Supporting Tools

19. Chapter 14: Testing

20. Chapter 15: Documenting Code

21. Chapter 16: Deploying Code

22. Chapter 17: Automation

23. Other Books You May Enjoy

Appendix A: Tooling Setup

1. Appendix B: The Future of Crystal

Technical requirements

The requirements for this chapter are as follows:

A working installation of Crystal
A working installation of jq
A working installation of libnotify
A working C compiler, such as GCC

You can refer to Chapter 1, An Introduction to Crystal, for instructions on getting Crystal set up. The latest versions of jq, libnotify, and GCC can most likely be installed using the package manager on your system, but can also be installed manually by downloading them from https://stedolan.github.io/jq/download, https://gitlab.gnome.org/GNOME/libnotify, and https://gcc.gnu.org/releases.html respectively. If you're working through this chapter on a non-Linux-based OS, for example, macOS or Windows/WSL, things may not work as expected, if at all.

All of the code examples used in this chapter can be found in the Chapter 7 folder on GitHub: https://github.com/PacktPublishing/Crystal-Programming/tree/main/Chapter07.

The rest of the chapter is locked

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Authors (2)

George Dietrich

George Dietrich

George Dietrich is a software engineer, open-source aficionado, and Crystal community moderator. He holds a Master of Science degree in internet information systems and a Bachelor of Science degree in information sciences.

See other products by George Dietrich

Bernal

Bernal

Guilherme Bernal is the chief technology officer at Cubos Tecnologia. He holds a bachelor's degree in TI management. Guilherme co-founded a software development company and several tech start-ups, including one that focused on teaching programming skills to a new generation of developers. He is also a two-time world finalist in the coding competition, ACM ICPC.

See other products by Bernal

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