Node.js process.setgid() Method

The process.setgid() method is an inbuilt application programming interface of the process module which is used to set the group identity of the Node.js process.
Syntax: 

process.setgid(id)

Parameters: This method accepts single parameter as mentioned above and described below: 

• id: It is a required parameter that holds a String or an integer denotes either groupname or ID, if group name is passed, it blocks while resolving the associated numeric ID.

Return: It does not return any value.
Note: This function will only work on POSIX platforms. Not available on windows or android platforms so will cause an error i.e. TypeError, setgid is not a function.
Below examples illustrate the use of process.setgid() method in Node.js:
Example 1: 

Output: 

The group identity of the Node.js process: 400

Example 2: 

Output:  

gid has successfully been set
The group identity of the Node.js process: 696

Note: The above program will compile and run by using the node filename.js command.
Reference: https://nodejs.org/api/process.html#process_process_setgid_id