WMI Native Module

Overview

The wmi-native-module is a native module for Node.js applications to query WMI on a local Windows system using native C++.

Install

npm install @intelcorp/wmi-native-module

Usage

Example queries can be found in tests\exampleQueries.js

Methods

function query(namespace: string, query: string, properties?: string[]): object;

Arguments

• namespace: Namespace of the class to query. Examples: 'root\wmi' or 'root\cimv2'
• query: WQL query string. Examples: 'SELECT * FROM Win32_Processor' or 'SELECT Caption,DeviceID FROM Win32_Processor
• properties: Optional parameter to limit the properties returned. Example: query('root\wmi', 'SELECT * FROM Win32_Processor', ['Caption','DeviceID'])

Namespace Whitelist

There is a whitelist for supported namespaces defined in namespaces.h.

• To allow the module to query any namespace, the IsSupportedNamespace() method can be modified to always return true.
• To add additional namespaces to the whitelist, add the new namespace to the vector returned by GetWhitelist(). Namespaces should always be added to the whitelist as all lowercase values.

Return Value

• Object containing the results found by the query.
• If the query fails or does not return any results an empty object will be returned: {}

Examples

const wmi = require('@intelcorp/wmi-native-module');
let result = wmi.query('root/cimv2', 'SELECT * FROM Win32_Processor');

const wmi = require('@intelcorp/wmi-native-module');
const properties = ['Caption', 'DeviceID', 'Manufacturer', 'MaxClockSpeed', 'Name', 'SocketDesignation'];
const query = `SELECT ${properties.join(',')} FROM Win32_Processor`;
let result = wmi.query('root/cimv2', query, properties);