Technical requirements
You'll need the following software for running the code in this chapter:
- A working installation of Crystal
- A working installation of jq
You can refer to Chapter 1, An Introduction to Crystal, for instructions on getting Crystal set up. jq can most likely be installed using the package manager on your system, but can also be installed manually by downloading it from https://stedolan.github.io/jq/download.
All of the code examples used in this chapter can be found in the Chapter 4
folder on GitHub: https://github.com/PacktPublishing/Crystal-Programming/tree/main/Chapter04.