Chapter 2. A solid foundation

This chapter covers

  • Working with command-line flags, options, and arguments
  • Passing configuration into an application
  • Starting and gracefully stopping a web server
  • Path routing for web and API servers

The foundation an application is built upon can be as important as any feature. Handling the way an application shuts down so you don’t lose data or create a bad user experience is an example of a step you take when building a strong foundation.

This chapter covers four foundational areas. You’ll start with console applications, also known as CLI applications. You’ll learn about handling command-line options, sometimes called flags or getopts, in a way that’s consistent with modern applications on Linux and ...

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