Table of Contents
- Introduction
- Prerequisites
- Setting Up the Environment
- Creating a CLI Application
- Implementing the Features
-
Introduction
In this tutorial, we will learn how to build a Command Line Interface (CLI) application in Go for managing TODOs in Github issues. We will utilize Go’s powerful standard library and GitHub’s API to interact with the issues. By the end of this tutorial, you will have a functional CLI tool that allows you to create, list, update, and close TODOs directly from your terminal.
Prerequisites
Before starting this tutorial, you should have the following:
- Basic understanding of Go programming language
- Familiarity with the command line
- GitHub account and token for accessing the GitHub API
- Go installed on your machine
Setting Up the Environment
To get started, we need to set up our development environment. Follow the steps below:
- Create a new directory for your project:
mkdir todos-cli - Navigate into the project directory:
cd todos-cli -
Initialize a new Go module:
go mod init github.com/your-username/todos-cli -
Open your favorite text editor and create a new file named
main.go.Our project structure is now ready, and we can start building our application.
Creating a CLI Application
In the main.go file, we will import the required packages and define the basic structure of our command-line application. Open the main.go file and add the following code:
```go package main
import ( “fmt” “os” )
func main() { if len(os.Args) < 2 { fmt.Println(“Please provide a command.”) os.Exit(1) }
command := os.Args[1]
switch command {
case "create":
fmt.Println("Creating a new TODO...")
// Call the create function
case "list":
fmt.Println("Listing all TODOs...")
// Call the list function
case "update":
fmt.Println("Updating a TODO...")
// Call the update function
case "close":
fmt.Println("Closing a TODO...")
// Call the close function
default:
fmt.Println("Invalid command. Available commands: create, list, update, close")
} }