Building a CLI Tool with Node.js

Building a CLI Tool with Node.js

Building a CLI Tool with Node.js - I'll walk you through create to set up a basic CLI tool for the Slack API, including how to post messages from the command line tools. Something that parses the --file part of my-cli-tool --file ./package.json. Here's how you can use Node to build a CLI for Slack.

"CLI" stands for "command-line interface". CLIs are tools that let you be productive from the shell. Common CLI tools include  curl,  Vue's CLI, and the  Amazon Web Services CLI.

You can further break down CLIs into various types. In the JavaScript ecosystem, there are many CLIs that help you create new projects, like Vue's CLI,  create-react-app, and  yeoman. Some of these CLI tools take it one step further and write code for you after creating a new project, like the  Angular CLI. Other CLIs provide a user-friendly interface for APIs, like the AWS CLI,  Kubernetes' kubectl tool, or  GitHub's CLI.

In this article, I'll walk you through how to set up a basic CLI tool for the  Slack API, including how to post messages from the command line.

Command Line Arguments

The first thing almost every CLI needs is an argument parser, something that parses the --file part of my-cli-tool --file ./package.json. There are a lot of modules that parse command line arguments on npm, but I prefer  yargs: the API is easy to work with, and the docs have pirate jokes. Run npm install yargs.

node node.js

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