How to create a Ink Terminal React program

What it is Ink?!

Explaining in a few words Ink is a library for building and testing command line applications using React components.

When I heard about a library that uses the same components of a web application to make a terminal program I was curious and intrigued to test it. That would be no more interesting than waiting for a machine to create a website for you.

I've already created some scripts in Fish/Bash and had already found that sensational, but I am bound to say that Ink is much more incredible

Installation

Init repository

$# yarn init -y

Install all components

$# yarn add ink@next react import-jsx

This will install all three basics components for CLI React program:

{
  "dependencies": {
    "import-jsx": "^4.0.0",
    "ink": "^3.0.0-6",
    "react": "^16.13.1"
  }
}

Files

Create Hello.js and index.js file that way:

├── Hello.js
├── index.js
├── /node_modules
├── package.json
└── yarn.lock

The code

In Hello.js import the required modules

const React = require('react');
const { render, Text } = require('ink');

Create the class for React

class Hello extends React.Component {}

Create contructor() and init super() that way:

class Hello extends React.Component {
  constructor() {
    super();
  }
}

Create render() function:

This will create the information needed to render the text with the tag <Text/> and convert the text into the terminal.

class Hello extends React.Component {
  constructor() {
    super();
  }
  render() {
    return (
      <Text>Hello World</Text>
    );
  }
}

Call render(<Hello/>) at end:

class Hello extends React.Component {
  constructor() {
    super();
  }
  render() {
    return (
      <Text>Hello World</Text>
    );
  }
}
render(<Hello/>);

Create import for the file In index.js create some importJSX for render the JSX

const importJsx = require('import-jsx');
importJsx('./Hello');

Run!

$# node index.js
Hello World