Summary

Throughout this chapter, we have gone through an example of building an audio metadata CLI. Going through each of the different components that make up this CLI has helped us to determine how a CLI could be structured and how files are structured, whether as part of an existing code base or as a new CLI.

We learned how to implement the first two main use cases of the CLI, uploading audio and getting audio metadata. The details provided on the structure of the commands gave you an idea of how commands could be built out without the use of any additional parsing packages. You also learned how to implement a use case, test your CLI, and mock a client interface.

While this chapter gave you an idea of how to build a CLI, some commands such as nested subcommands and flag combinations can get complicated. In the next chapter, we’ll discuss how to use some popular frameworks to help parse complicated commands and improve the CLI development process overall. You’...