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Functional JS HTTP client (Node.js & Fetch) w/ async await

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🏊🏾 Simplified HTTP request client.

A light-weight module that brings the Fetch API to Node.js

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Quick Overview

Bent is a functional HTTP client for Node.js and browsers with async/await support. It provides a simple and flexible API for making HTTP requests, handling redirects, and parsing responses. Bent is designed to be lightweight and easy to use, making it a popular choice for developers who need a straightforward HTTP client.

Pros

  • Supports both Node.js and browser environments
  • Lightweight and minimalistic design
  • Built-in async/await support
  • Automatic handling of redirects and retries

Cons

  • Limited advanced features compared to more comprehensive HTTP clients
  • Documentation could be more extensive
  • Fewer middleware options compared to some alternatives
  • May not be suitable for complex API integrations

Code Examples

  1. Making a simple GET request:
const bent = require('bent');

const getJSON = bent('json');
const response = await getJSON('https://api.example.com/data');
console.log(response);
  1. Posting JSON data:
const bent = require('bent');

const post = bent('POST', 'json', 'https://api.example.com');
const response = await post('/users', { name: 'John Doe', email: 'john@example.com' });
console.log(response);
  1. Handling errors:
const bent = require('bent');

const get = bent('GET', 'https://api.example.com', 'json');
try {
  const response = await get('/nonexistent');
} catch (error) {
  console.error('Status:', error.statusCode);
  console.error('Message:', error.message);
}

Getting Started

To use Bent in your project, follow these steps:

  1. Install Bent using npm:

    npm install bent
    
  2. Import Bent in your JavaScript file:

    const bent = require('bent');
    
  3. Create a request function with your desired options:

    const getJSON = bent('json', 'https://api.example.com');
    
  4. Make requests using the created function:

    const data = await getJSON('/users');
    console.log(data);
    

That's it! You can now start making HTTP requests using Bent in your Node.js or browser application.

Competitor Comparisons

105,172

Promise based HTTP client for the browser and node.js

Pros of Axios

  • More comprehensive feature set, including request and response interceptors
  • Wider browser support, including older versions
  • Larger community and ecosystem, with more plugins and extensions available

Cons of Axios

  • Larger bundle size, which may impact performance in some applications
  • More complex API, potentially steeper learning curve for beginners
  • Requires more setup for certain use cases, such as file uploads

Code Comparison

Axios:

axios.get('https://api.example.com/data')
  .then(response => {
    console.log(response.data);
  })
  .catch(error => {
    console.error(error);
  });

Bent:

const bent = require('bent')
const getJSON = bent('json')

getJSON('https://api.example.com/data')
  .then(data => console.log(data))
  .catch(err => console.error(err))

Both libraries provide similar functionality for making HTTP requests, but Axios offers a more feature-rich API with additional options and configurations. Bent, on the other hand, focuses on simplicity and a smaller footprint, making it a good choice for projects where minimalism is preferred. The code examples demonstrate that while the basic usage is similar, Axios provides a more structured response object, whereas Bent directly returns the parsed JSON data.

14,189

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Pros of Got

  • More feature-rich with support for various HTTP methods, streaming, and advanced options
  • Better TypeScript support with comprehensive type definitions
  • Active development with frequent updates and a larger community

Cons of Got

  • Larger package size and potentially higher memory footprint
  • Steeper learning curve due to more complex API and configuration options
  • May be overkill for simple HTTP requests

Code Comparison

Bent:

const bent = require('bent')
const getJSON = bent('json')
const response = await getJSON('https://api.example.com/data')

Got:

const got = require('got')
const response = await got('https://api.example.com/data').json()

Summary

Got is a more comprehensive HTTP client library with a wide range of features, making it suitable for complex applications. It offers better TypeScript support and is actively maintained. However, it comes with a larger package size and may be more complex to use for simple requests.

Bent, on the other hand, is a lightweight and straightforward HTTP client, ideal for basic HTTP requests. It has a smaller footprint and a simpler API, making it easier to use for simple scenarios. However, it lacks some advanced features and may not be suitable for more complex HTTP interactions.

Choose Got for feature-rich applications with diverse HTTP requirements, and Bent for simpler projects where a lightweight solution is preferred.

25,682

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Pros of Request

  • More mature and widely adopted project with extensive documentation
  • Supports a broader range of HTTP methods and features
  • Offers plugins and middleware for extended functionality

Cons of Request

  • Larger package size and more dependencies
  • Slower performance compared to Bent
  • No longer actively maintained (deprecated)

Code Comparison

Request:

const request = require('request');

request('https://api.example.com', (error, response, body) => {
  if (!error && response.statusCode == 200) {
    console.log(body);
  }
});

Bent:

const bent = require('bent');

const getJSON = bent('json');
const response = await getJSON('https://api.example.com');
console.log(response);

Key Differences

  • Bent is more lightweight and focused on modern JavaScript features (async/await)
  • Request offers more options and flexibility but at the cost of complexity
  • Bent has better performance for simple HTTP requests
  • Request has a larger ecosystem and community support (historical)

Use Cases

  • Choose Request for legacy projects or when extensive features are needed
  • Opt for Bent in modern Node.js applications prioritizing simplicity and performance

Conclusion

While Request has been a popular choice for years, its deprecated status makes Bent a more future-proof option for new projects. Bent's simplicity and performance advantages make it attractive for developers working with modern JavaScript paradigms.

A light-weight module that brings the Fetch API to Node.js

Pros of node-fetch

  • More widely adopted and maintained, with a larger community and ecosystem
  • Closer to the browser's Fetch API, making it easier to use for developers familiar with client-side JavaScript
  • Supports more advanced features like request/response cloning and custom AbortController implementations

Cons of node-fetch

  • Slightly more complex API compared to bent's simpler, more opinionated approach
  • Requires more setup and configuration for common use cases like JSON parsing and error handling
  • Larger package size and potentially higher memory usage

Code Comparison

node-fetch:

import fetch from 'node-fetch';

const response = await fetch('https://api.example.com/data');
const data = await response.json();

bent:

import bent from 'bent';

const getJSON = bent('json');
const data = await getJSON('https://api.example.com/data');

Both libraries provide HTTP client functionality for Node.js, but they differ in their approach and feature set. node-fetch aims to replicate the browser's Fetch API, offering a familiar interface for web developers. It provides more flexibility and advanced features at the cost of slightly increased complexity.

bent, on the other hand, focuses on simplicity and ease of use. It offers a more opinionated API with built-in convenience methods for common tasks like JSON parsing. This results in more concise code for basic use cases but may limit flexibility for more complex scenarios.

The choice between the two libraries depends on the specific requirements of your project and your preference for API design.

Ajax for Node.js and browsers (JS HTTP client). Maintained for @forwardemail, @ladjs, @spamscanner, @breejs, @cabinjs, and @lassjs.

Pros of Superagent

  • More comprehensive API with support for various HTTP methods and advanced features
  • Extensive plugin ecosystem for additional functionality
  • Better browser support and compatibility

Cons of Superagent

  • Larger package size and potentially higher overhead
  • Steeper learning curve due to more complex API

Code Comparison

Bent:

const bent = require('bent')
const getJSON = bent('json')
const response = await getJSON('https://api.example.com/data')

Superagent:

const superagent = require('superagent')
const response = await superagent
  .get('https://api.example.com/data')
  .set('Accept', 'application/json')

Key Differences

  • Bent focuses on simplicity and minimal dependencies, while Superagent offers a more feature-rich experience
  • Bent uses a functional approach with separate functions for different request types, whereas Superagent uses a chainable API
  • Superagent provides more built-in options for request customization and response handling

Use Cases

  • Bent: Ideal for projects requiring a lightweight HTTP client with minimal overhead
  • Superagent: Better suited for complex applications needing advanced features and extensive customization options

Community and Maintenance

  • Bent: Smaller community but actively maintained
  • Superagent: Larger community, more frequent updates, and extensive documentation

The all-batteries-included GitHub SDK for Browsers, Node.js, and Deno.

Pros of Octokit.js

  • Specifically designed for GitHub API interactions, offering comprehensive coverage of GitHub features
  • Provides TypeScript support, enhancing developer experience with better type checking and autocompletion
  • Offers plugins for extended functionality, such as authentication and pagination handling

Cons of Octokit.js

  • Larger package size and potentially more complex setup compared to Bent's lightweight approach
  • Focused solely on GitHub API, limiting its use for other HTTP requests or APIs

Code Comparison

Bent:

const bent = require('bent')
const getJSON = bent('json')
const response = await getJSON('https://api.github.com/users/octocat')

Octokit.js:

const { Octokit } = require("@octokit/core")
const octokit = new Octokit()
const response = await octokit.request('GET /users/{username}', {
  username: 'octocat'
})

Summary

Octokit.js is a robust solution for GitHub API interactions, offering comprehensive features and TypeScript support. However, it may be overkill for simple requests. Bent, on the other hand, provides a lightweight and flexible approach for general HTTP requests, including GitHub API calls, but lacks GitHub-specific optimizations and TypeScript support.

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README

bent

2377 1106

Functional HTTP client for Node.js and Browsers with async/await.

Incredibly small browser version built on fetch with no external dependencies or polyfills.

Usage

const bent = require('bent')

const getJSON = bent('json')
const getBuffer = bent('buffer')

let obj = await getJSON('http://site.com/json.api')
let buffer = await getBuffer('http://site.com/image.png')

As you can see, bent is a function that returns an async function.

Bent takes options which constrain what is accepted by the client. Any response that falls outside the constraints will generate an error.

You can provide these options in any order, and Bent will figure out which option is which by inspecting the option's type and content.

const post = bent('http://localhost:3000/', 'POST', 'json', 200);
const response = await post('cars/new', {name: 'bmw', wheels: 4});

If you don't set a response encoding ('json', 'string' or 'buffer') then the native response object will be returned after the statusCode check.

In Node.js, we also add decoding methods that match the Fetch API (.json(), .text() and .arrayBuffer()).

const bent = require('bent')

const getStream = bent('http://site.com')

let stream = await getStream('/json.api')
// status code
stream.status // 200
stream.statusCode // 200
// optionally decode
const obj = await stream.json()
// or
const str = await stream.text()

The following options are available.

  • HTTP Method: 'GET', 'PUT', or any other ALLCAPS string will be used to set the HTTP method. Defaults to 'GET'.
  • Response Format: Available formats are 'string', 'buffer', and 'json'. By default, the response object/stream will be returned instead of a decoded response. Browser returns ArrayBuffer instead of Buffer.
  • Status Codes: Any number will be considered an acceptable status code. By default, 200 is the only acceptable status code. When any status codes are provided, 200 must be included explicitly in order to be acceptable.
  • Headers: An object can be passed to set request headers.
  • Base URL: Any string that begins with 'https:' or 'http:' is considered the Base URL. Subsequent queries need only pass the remaining URL string.

The returned async function is used for subsequent requests.

When working with Binary this library uses different types in the browser and Node.js. In Node.js all binary must be done using the Buffer type. In the browser you can use ArrayBuffer or any ArrayBuffer view type (UInt8Array, etc).

async request(url[, body=null, headers={}])

  • url: Fully qualified URL to the remote resource, or in the case that a base URL is passed the remaining URL string.
  • body: Request body. Can be a string, a stream (node.js), a buffer (node.js) (see note below), an ArrayBuffer (browser), or a JSON object.
  • headers: An object of any headers you need to set for just this request.
const bent = require('bent')

const put = bent('PUT', 201)
await put('http://site.com/upload', Buffer.from('test'))

Or

const bent = require('bent')

const put = bent('PUT', 201, 'http://site.com')
await put('/upload', Buffer.from('test'))

NOTE: If the body is passed as an object, it will be treated as JSON, stringified and the Content-Type will be set to application/json unless already set. A common requirement is to POST using form-urlencoded. This will require you to set the Content-Type header to application/x-www-form-urlencoded and to encode the body yourself, perhaps using form-urlencoded.

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