Enquirer

<h1 align="center">Enquirer</h1> <p align="center"> <a href="https://npmjs.org/package/enquirer"> <img src="https://img.shields.io/npm/v/enquirer.svg" alt="version"> </a> <a href="https://npmjs.org/package/enquirer"> <img src="https://img.shields.io/npm/dm/enquirer.svg" alt="downloads"> </a> </p> <br> <br> <p align="center"> <b>Stylish CLI prompts that are user-friendly, intuitive and easy to create.</b><br> _{>_ Prompts should be more like conversations than inquisitions▌} </p> <br> <p align="center"> _{(Example shows Enquirer's <a href="#survey-prompt">Survey Prompt</a>)</a>} <img src="https://raw.githubusercontent.com/enquirer/enquirer/master/media/survey-prompt.gif" alt="Enquirer Survey Prompt" width="750"><br> _{The terminal in all examples is <a href="https://hyper.is/">Hyper</a>, theme is <a href="https://github.com/jonschlinkert/hyper-monokai-extended">hyper-monokai-extended</a>.}<br><br> <a href="#built-in-prompts"><strong>See more prompt examples</strong></a> </p> <br> <br>

Created by jonschlinkert and doowb, Enquirer is fast, easy to use, and lightweight enough for small projects, while also being powerful and customizable enough for the most advanced use cases.

• Fast - Loads in ~4ms (that's about 3-4 times faster than a single frame of a HD movie at 60fps)
• Lightweight - Only one dependency, the excellent ansi-colors by Brian Woodward.
• Easy to implement - Uses promises and async/await and sensible defaults to make prompts easy to create and implement.
• Easy to use - Thrill your users with a better experience! Navigating around input and choices is a breeze. You can even create quizzes, or record and playback key bindings to aid with tutorials and videos.
• Intuitive - Keypress combos are available to simplify usage.
• Flexible - All prompts can be used standalone or chained together.
• Stylish - Easily override semantic styles and symbols for any part of the prompt.
• Extensible - Easily create and use custom prompts by extending Enquirer's built-in prompts.
• Pluggable - Add advanced features to Enquirer using plugins.
• Validation - Optionally validate user input with any prompt.
• Well tested - All prompts are well-tested, and tests are easy to create without having to use brittle, hacky solutions to spy on prompts or "inject" values.
• Examples - There are numerous examples available to help you get started.

If you like Enquirer, please consider starring or tweeting about this project to show your support. Thanks!

<br> <p align="center"> <b>>_ Ready to start making prompts your users will love? ▌</b><br> <img src="https://raw.githubusercontent.com/enquirer/enquirer/master/media/heartbeat.gif" alt="Enquirer Select Prompt with heartbeat example" width="750"> </p> <br> <br>

❯ Getting started

Get started with Enquirer, the most powerful and easy-to-use Node.js library for creating interactive CLI prompts.

• Install
• Usage
• Enquirer
• Prompts
  • Built-in Prompts
  • Custom Prompts
• Key Bindings
• Options
• Release History
• Performance
• About

<br>

❯ Install

Install with npm:

npm install enquirer --save

Install with yarn:

yarn add enquirer

<p align="center"> <img src="https://raw.githubusercontent.com/enquirer/enquirer/master/media/npm-install.gif" alt="Install Enquirer with NPM" width="750"> </p>

(Requires Node.js 8.6 or higher. Please let us know if you need support for an earlier version by creating an issue.)

<br>

❯ Usage

Single prompt

The easiest way to get started with enquirer is to pass a question object to the prompt method.

const { prompt } = require('enquirer');

const response = await prompt({
  type: 'input',
  name: 'username',
  message: 'What is your username?'
});

console.log(response); // { username: 'jonschlinkert' }

(Examples with await need to be run inside an async function)

Multiple prompts

Pass an array of "question" objects to run a series of prompts.

const response = await prompt([
  {
    type: 'input',
    name: 'name',
    message: 'What is your name?'
  },
  {
    type: 'input',
    name: 'username',
    message: 'What is your username?'
  }
]);

console.log(response); // { name: 'Edward Chan', username: 'edwardmchan' }

Different ways to run enquirer

1. By importing the specific built-in prompt

const { Confirm } = require('enquirer');

const prompt = new Confirm({
  name: 'question',
  message: 'Did you like enquirer?'
});

prompt.run()
  .then(answer => console.log('Answer:', answer));

2. By passing the options to prompt

const { prompt } = require('enquirer');

prompt({
  type: 'confirm',
  name: 'question',
  message: 'Did you like enquirer?'
})
  .then(answer => console.log('Answer:', answer));

Jump to: Getting Started · Prompts · Options · Key Bindings

<br>

❯ Enquirer

Enquirer is a prompt runner

Add Enquirer to your JavaScript project with following line of code.

const Enquirer = require('enquirer');

The main export of this library is the Enquirer class, which has methods and features designed to simplify running prompts.

const { prompt } = require('enquirer');
const questions = [
  {
    type: 'input',
    name: 'username',
    message: 'What is your username?'
  },
  {
    type: 'password',
    name: 'password',
    message: 'What is your password?'
  }
];

const answers = await prompt(questions);
console.log(answers);

Prompts control how values are rendered and returned

Each individual prompt is a class with special features and functionality for rendering the types of values you want to show users in the terminal, and subsequently returning the types of values you need to use in your application.

How can I customize prompts?

Below in this guide you will find information about creating custom prompts. For now, we'll focus on how to customize an existing prompt.

All of the individual prompt classes in this library are exposed as static properties on Enquirer. This allows them to be used directly without using enquirer.prompt().

Use this approach if you need to modify a prompt instance, or listen for events on the prompt.

Example

const { Input } = require('enquirer');
const prompt = new Input({
  name: 'username',
  message: 'What is your username?'
});

prompt.run()
  .then(answer => console.log('Username:', answer))
  .catch(console.error);

Enquirer

Create an instance of Enquirer.

Params

• options {Object}: (optional) Options to use with all prompts.
• answers {Object}: (optional) Answers object to initialize with.

Example

const Enquirer = require('enquirer');
const enquirer = new Enquirer();

register()

Register a custom prompt type.

Params

• type {String}
• fn {Function|Prompt}: Prompt class, or a function that returns a Prompt class.
• returns {Object}: Returns the Enquirer instance

Example

const Enquirer = require('enquirer');
const enquirer = new Enquirer();
enquirer.register('customType', require('./custom-prompt'));

prompt()

Prompt function that takes a "question" object or array of question objects, and returns an object with responses from the user.

Params

• questions {Array|Object}: Options objects for one or more prompts to run.
• returns {Promise}: Promise that returns an "answers" object with the user's responses.

Example

const Enquirer = require('enquirer');
const enquirer = new Enquirer();

const response = await enquirer.prompt({
  type: 'input',
  name: 'username',
  message: 'What is your username?'
});
console.log(response);

use()

Use an enquirer plugin.

Params

• plugin {Function}: Plugin function that takes an instance of Enquirer.
• returns {Object}: Returns the Enquirer instance.

Example

const Enquirer = require('enquirer');
const enquirer = new Enquirer();
const plugin = enquirer => {
  // do stuff to enquire instance
};
enquirer.use(plugin);

Enquirer#prompt

Prompt function that takes a "question" object or array of question objects, and returns an object with responses from the user.

Params

• questions {Array|Object}: Options objects for one or more prompts to run.
• returns {Promise}: Promise that returns an "answers" object with the user's responses.

Example

const { prompt } = require('enquirer');
const response = await prompt({
  type: 'input',
  name: 'username',
  message: 'What is your username?'
});
console.log(response);

<br>

❯ Prompts

This section is about Enquirer's prompts: what they look like, how they work, how to run them, available options, and how to customize the prompts or create your own prompt concept.

Getting started with Enquirer's prompts

• Prompt - The base Prompt class used by other prompts
  • [Prompt Optio