Introduction to Hyperquest

Hyperquest is a streamlined HTTP request library designed for Node.js. It leverages the core HTTP module to provide a lightweight, efficient means of making HTTP requests. In this article, we’ll delve into Hyperquest, exploring its various APIs and providing practical examples to help you get started.

Basic Usage

The primary function of Hyperquest is to make HTTP requests. Here’s a simple example of making a GET request:

  const hyperquest = require('hyperquest');
  const { StringDecoder } = require('string_decoder');
  const decoder = new StringDecoder('utf8');

  hyperquest('http://example.com')
    .on('data', (chunk) => {
      process.stdout.write(decoder.write(chunk));
    })
    .on('end', () => {
      console.log('Request complete.');
    });

Making POST Requests

To make a POST request and send data to a server, we modify our approach slightly:

  const hyperquest = require('hyperquest');
  const postData = JSON.stringify({
    name: 'John Doe',
    age: 30
  });

  const req = hyperquest('http://example.com/api', { method: 'POST', headers: { 'Content-Type': 'application/json' }});
  req.write(postData);
  req.end();

Handling Errors

Handling errors in Hyperquest is straightforward by listening to the error event:

  const hyperquest = require('hyperquest');

  hyperquest('http://invalid-url')
    .on('error', (err) => {
      console.error('Error occurred:', err);
    });

Streamlining HTTP Requests

Hyperquest excels in its streaming capabilities. Here is an example of streaming data from one endpoint to another:

  const hyperquest = require('hyperquest');
  const fs = require('fs');

  hyperquest('http://example.com/file')
    .pipe(fs.createWriteStream('downloaded_file.txt'))
    .on('finish', () => {
      console.log('File downloaded successfully.');
    });

Complete Application Example

Let’s put it all together with a complete example. In this example, we’ll create an application that fetches user data from an API and saves it to a file:

  const hyperquest = require('hyperquest');
  const fs = require('fs');
  const { StringDecoder } = require('string_decoder');
  const decoder = new StringDecoder('utf8');

  const url = 'http://example.com/api/users';
  const outputFile = 'users.json';

  const req = hyperquest(url);

  req.on('data', (chunk) => {
    fs.appendFileSync(outputFile, decoder.write(chunk));
  });

  req.on('end', () => {
    console.log('Data fetching complete. Data saved to', outputFile);
  });

  req.on('error', (err) => {
    console.error('Error occurred:', err);
  });

With these examples, you should have a solid foundation to start using Hyperquest in your Node.js applications. Its simplicity and efficiency make it a valuable tool for any developer working with HTTP requests.

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