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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

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Product type Paperback
Published in May 2022
Publisher Packt
ISBN-13 9781801818674
Length 356 pages
Edition 1st Edition
Languages
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Authors (2):
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George Dietrich George Dietrich
Author Profile Icon George Dietrich
George Dietrich
Guilherme Bernal Guilherme Bernal
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Guilherme Bernal
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Toc

Table of Contents (26) Chapters Close

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

Getting started with Athena

Similar to what we did when creating our CLI application in Chapter 4, Exploring Crystal via Writing a Command-Line Interface, we are going to make use of the crystal init command to scaffold our application. However, unlike last time, where we scaffolded out a library, we are going to initialize an app. The main reason for this is so that we also get a shard.lock file to allow for reproducible installs, as we learned in the previous chapter. The full command would end up looking like crystal init app blog.

Now that we have our application scaffolded, we can go ahead and add Athena as a dependency by adding the following to the shard.yml file, being sure to run shards install afterward as well:

dependencies:
  athena:
    github: athena-framework/framework
    version: ~> 0.16.0

And that is all there is to installing Athena. It is designed to be non-intrusive by not requiring any external dependencies...

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