agent.maxSockets property in Node.js

agent.maxSockets property defines the number of sockets that the agent can open simultaneously for each source. By default, this value is set to infinity. This is also part of the "http" module.

Syntax

agent.maxSockets: number

Parameters

The above function can accept the following parameters-

• number – This definition Determines the number of concurrent sockets the agent can have. Its default value is set to Infinity.

Example

Create a file named maxSockets.js and copy the following code snippet. After creating the file, run this code using the following command, as shown in the following example:

node maxSockets.js

maxSockets.js

// agent.maxSockets method Demo example

// Importing the http & agentkeepalive module
const http = require('http');
const agent = require('agentkeepalive');

const keepaliveAgent = new agent({
   maxSockets: 100,
   maxFreeSockets: 10,
   timeout: 60000, // active socket keepalive for 60 seconds
   freeSocketTimeout: 30000, // free socket keepalive for 30 seconds
});

const options = {
   host: 'tutorialspoint.com',
   port: 80,
   path: '/',
   method: 'GET',
   agent: keepaliveAgent,
};
console.log("Max free sockets: ",keepaliveAgent.maxSockets);
console.log('[%s] agent status changed: %j', Date(),
keepaliveAgent.getCurrentStatus());

Output

C:\homeode>> node maxSockets.js
Max sockets: 100
[Fri Apr 30 2021 12:28:24 GMT+0530 (India Standard Time)] agent status
changed:
{"createSocketCount":0,"createSocketErrorCount":0,"closeSocketCount":0,"errorS
ocketCount":0,"timeoutSocketCount":0,"requestCount":0,"freeSockets":{},"socket
s":{},"requests":{}}

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