The agent.maxFreeSockets property defines the number of sockets that are left open while in the free state. This is a part of the 'http' module interface.
Syntax
agent.maxFreeSockets : number
Parameters
The above function can accept the following parameters −
number – This defines the number of sockets that can be kept open in the free state. Its default value is set to 256.
Example
Create a file with name – maxFreeSockets.js and copy the below code snippet. After creating file, use the following command to run this code as shown in the example below −
node maxFreeSockets.js
maxFreeSockets.js −
// agent.maxFreeSockets 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.maxFreeSockets);
console.log('[%s] agent status changed: %j', Date(),
keepaliveAgent.getCurrentStatus());Output
C:\home\node>> node maxFreeSockets.js
Max free sockets: 10
[Fri Apr 30 2021 12:21:12 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":{}}