http agent in node js - Githubissues

In Node.js, you can use an HTTP agent to manage and control the behavior of HTTP requests. An HTTP agent is an instance of the http.Agent class, and it provides a pool of sockets that can be reused for multiple requests.

To use an HTTP agent in Node.js, you can follow these steps:

Create an instance of the http.Agent class by calling its constructor, optionally passing in an object with configuration options.

const http = require('http');

const agent = new http.Agent({
  maxSockets: 10,
  keepAlive: true,
  keepAliveMsecs: 1000
});

In this example, we create an HTTP agent with a maximum of 10 sockets, and enable keep-alive connections with a timeout of 1 second.

Use the agent instance when making an HTTP request. You can do this by passing the agent option to the http.request() or http.get() methods.

const options = {
  hostname: 'example.com',
  path: '/resource',
  agent: agent
};

const req = http.request(options, (res) => {
  // handle response
});

req.end();

In this example, we create an HTTP request to example.com/resource and use the agent instance to manage the connection.

If you're making multiple requests to the same host, you can reuse the same agent instance by passing it in the options object for each request.

const options1 = {
  hostname: 'example.com',
  path: '/resource1',
  agent: agent
};

const options2 = {
  hostname: 'example.com',
  path: '/resource2',
  agent: agent
};

const req1 = http.request(options1, (res) => {
  // handle response
});

const req2 = http.request(options2, (res) => {
  // handle response
});

req1.end();
req2.end();

By reusing the same agent instance, you can save resources and improve performance by avoiding the overhead of creating and closing sockets for each request.

That's it! With these steps, you can use an HTTP agent in Node.js to manage HTTP connections and improve the efficiency of your code.

const options1 = { hostname: 'example.com', path: '/resource1', agent: agent }; const options2 = { hostname: 'example.com', path: '/resource2', agent: agent }; const req1 = http.request(options1, (res) => { // handle response }); const req2 = http.request(options2, (res) => { // handle response }); req1.end(); req2.end();

preveen-stack / test

http agent in node js #6