Powerful Command-Line Applications in Go/

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Creating the Initial To-Do Command-Line Tool

Creating the Initial To-Do Command-Line Tool

Learn how to create a command-line tool using the to-do application.

We'll cover the following...

We have a working to-do API, so now we can build a command-line interface on top of it. We’ll start with an initial implementation that includes the following two features:

  • When executed without any arguments, the command will list the available to-do items.

  • When executed with one or more arguments, the command will concatenate the arguments as a new item and add it to the list.

The main.go file

This code in the main.go file defines the package and imports:

package main
import (
  "fmt"
  "os"
  "strings"
  "todo"
)
The import section

  • We’ll use the Args variable from the os package to verify the arguments provided during our tool’s execution.
  • We’ll use the fmt and strings
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