Welcome to the Comprehensive Guide to hpagent for Enhanced HTTP Performance Optimization

The hpagent module is designed to optimize the HTTP requests, significantly improving the performance and reliability of Node.js applications by providing fine-grained control over HTTP/HTTPS agents. In this comprehensive guide, we will cover its various APIs with detailed explanations and examples.

Installation

  npm install hpagent

Creating an HTTPS Agent

  const { HttpsProxyAgent } = require('hpagent');

  const agent = new HttpsProxyAgent({
    keepAlive: true,
    keepAliveMsecs: 1000,
    maxSockets: 256,
    maxFreeSockets: 256,
    scheduling: 'lifo',
    proxy: 'http://localhost:8080'
  });

  // Use the agent with https
  const https = require('https');
  https.get('https://example.com', { agent }, (res) => {
    // Handle response
  });

Creating an HTTP Agent

  const { HttpProxyAgent } = require('hpagent');

  const agent = new HttpProxyAgent({
    keepAlive: true,
    keepAliveMsecs: 1000,
    maxSockets: 256,
    maxFreeSockets: 256,
    scheduling: 'lifo',
    proxy: 'http://localhost:8080'
  });

  // Use the agent with http
  const http = require('http');
  http.get('http://example.com', { agent }, (res) => {
    // Handle response
  });

Manual Proxy Settings

It is possible to manually define proxy settings for finer control over network traffic.

  const agent = new HttpsProxyAgent({
    proxy: {
      protocol: 'http',
      host: '10.0.0.1',
      port: 8080,
      auth: {
        username: 'user',
        password: 'password'
      }
    }
  });

  // Use the agent with https
  const https = require('https');
  https.get('https://example.com', { agent }, (res) => {
    // Handle response
  });

Using the Agent with Axios

Integrating hpagent with axios is straightforward and adds a significant boost to performance.

  const axios = require('axios');
  const { HttpProxyAgent } = require('hpagent');

  const agent = new HttpProxyAgent({
    keepAlive: true,
    proxy: 'http://localhost:8080'
  });

  axios.get('http://example.com', { httpAgent: agent })
    .then(response => {
      console.log(response.data);
    })
    .catch(error => {
      console.error(error);
    });

Full Application Example

A simple application utilizing the hpagent for making HTTP and HTTPS requests.

  const express = require('express');
  const axios = require('axios');
  const { HttpProxyAgent, HttpsProxyAgent } = require('hpagent');

  const app = express();

  const httpAgent = new HttpProxyAgent({
    keepAlive: true,
    proxy: 'http://localhost:8080'
  });

  const httpsAgent = new HttpsProxyAgent({
    keepAlive: true,
    proxy: 'http://localhost:8080'
  });

  app.get('/fetch-http', (req, res) => {
    axios.get('http://example.com', { httpAgent })
      .then(response => {
        res.send(response.data);
      })
      .catch(error => {
        res.status(500).send(error.toString());
      });
  });

  app.get('/fetch-https', (req, res) => {
    axios.get('https://example.com', { httpsAgent })
      .then(response => {
        res.send(response.data);
      })
      .catch(error => {
        res.status(500).send(error.toString());
      });
  });

  app.listen(3000, () => {
    console.log('Server is running on port 3000');
  });

Use the examples above to integrate hpagent into your applications efficiently. Happy coding!

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