Node.js process.setuid() Method
Last Updated :
30 Jan, 2023
The process.setuid() method is an inbuilt application programming interface of the process module which is used to set the user identity of the Node.js process.
Syntax:
process.setuid(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 numeric ID or username string, if username 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, setuid is not a function.
Below examples illustrate the use of process.setuid() method in Node.js:
Example 1:
Javascript
const process = require( 'process' );
if (process.getuid && process.setuid ) {
process.setuid(400);
console.log( "The user identity of the Node.js"
+ " process:" , process.getuid());
}
|
Output:
The user identity of the Node.js process: 400
Example 2:
Javascript
const process = require( 'process' );
if (process.setuid) {
try {
process.setuid(696);
console.log( "User id has successfully been set" );
} catch (err) {
console.log( "Failed to set user id:" , err);
}
}
if (process.getuid) {
console.log( "The user identity of the Node.js"
+ " process:" , process.getuid());
}
|
Output:
User id has successfully been set
The user 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_setuid_id
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