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system-status

Overview

system-status is a NodeJS lib for statistical system data such as cpu, mem, network, disk.

Features

• CPU load
• load average
• memory usage
• uptime / boot time
• battery life
• filesystem mounts (and disk usage)
• disk I/O statistics
• network interfaces
• network traffic statistics
• CPU temperature

Table of Contents

• Overview
• Features
• Table of Contents
• Getting Started
  • Prerequisites
  • Support Operating Systems
    • API Supported platforms (roughly ordered by completeness of support):
    • NPM Package Supported platforms
  • Installation
• Documentation
  • mounts (Stat class instance method)
  • mountAt (Stat class instance method)
  • blockDeviceStatistics (Stat class instance method)
  • networks (Stat class instance method)
  • networkStats (Stat class instance method)
  • batteryLife (Stat class instance method)
  • isAcPower (Stat class instance method)
  • memory (Stat class instance method)
  • swap (Stat class instance method)
  • loadAverage (Stat class instance method)
  • uptime (Stat class instance method)
  • bootTime (Stat class instance method)
  • cpuLoadAggregate (Stat class instance method)
  • cpuTemp (Stat class instance method)
  • socketStats (Stat class instance method)
  • format (Function)
  • FileSystem (Type)
  • BlockDeviceStats (Type)
  • Network (Type)
  • NetworkStats (Type)
  • BatteryLife (Type)
  • Memory (Type)
  • LoadAverage (Type)
  • CPULoad (Type)
  • ConvertResult (Type)
  • ConvertOption (Type)
• How to Develop
  • Development requirements
  • Test in local
• Release Notes
• Thanks

Getting Started

Prerequisites

• Node.js (>= 10.4.0 required, LTS preferred)

Support Operating Systems

API Supported platforms (roughly ordered by completeness of support):

1. FreeBSD
2. Linux
3. OpenBSD
4. Windows
5. macOS
6. NetBSD
7. more coming soon

NPM Package Supported platforms

	node12	node14	node16	node18
Windows x64	✓	✓	✓	✓
Windows x86	✓	✓	✓	✓
Windows arm64	✓	✓	✓	✓
macOS x64	✓	✓	✓	✓
macOS aarch64	✓	✓	✓	✓
Linux x64 gnu	✓	✓	✓	✓
Linux x64 musl	✓	✓	✓	✓
Linux aarch64 gnu	✓	✓	✓	✓
Linux aarch64 musl	✓	✓	✓	✓
FreeBSD x64	✓	✓	✓	✓

Installation

npm install system-status
# or
yarn add system-status
# or
pnpm i system-status

Documentation

Create Stat class instance in first

const stat = new Stat()

mounts (Stat class instance method)

Get filesystem mount information.

mounts(): Array<FileSystem>

mountAt (Stat class instance method)

Get a filesystem mount information for the filesystem at a given path.

mountAt(at: string): FileSystem

blockDeviceStatistics (Stat class instance method)

Get block device statistics objects.

blockDeviceStatistics(): Array<BlockDeviceStats>

networks (Stat class instance method)

Get network intefrace information.

networks(): Array<Network>

networkStats (Stat class instance method)

Get statistics for a given interface name (bytes/packets sent/received).

networkStats(interface: string): NetworkStats

batteryLife (Stat class instance method)

Get a battery life information object.

batteryLife(): BatteryLife

isAcPower (Stat class instance method)

Get whether AC power is plugged in.

isAcPower(): boolean

memory (Stat class instance method)

Get memory information.

memory(): Memory

swap (Stat class instance method)

Get swap memory information.

swap(): Memory

loadAverage (Stat class instance method)

Get load average.

loadAverage(): LoadAverage

uptime (Stat class instance method)

Get the system uptime.

uptime(): bigint

bootTime (Stat class instance method)

Get the system boot time.

bootTime(): Date

cpuLoadAggregate (Stat class instance method)

Get CPU load statistics, average over all CPUs (cores).

cpuLoadAggregate(): CPULoad

cpuTemp (Stat class instance method)

Get the current CPU temperature in degrees Celsius. Depending on the platform, this might be core 0, package, etc.

cpuTemp(): number

socketStats (Stat class instance method)

Get information about the number of sockets in use

socketStats(): SocketStats

format (Function)

Format the source by ConvertOption

The default of ConvertOption is taking 1024 as the advancement, retain one decimal place

function format(source: bigint, option?: ConvertOption | undefined | null): ConvertResult

FileSystem (Type)

interface FileSystem {
  /** Used file nodes in filesystem */
  files: bigint
  /** Total file nodes in filesystem */
  filesTotal: bigint
  /** Free nodes available to non-superuser */
  filesAvail: bigint
  /** Free bytes in filesystem */
  free: bigint
  /** Free bytes available to non-superuser */
  avail: bigint
  /** Total bytes in filesystem */
  total: bigint
  /** Maximum filename length */
  nameMax: bigint
  fsType: string
  fsMountedFrom: string
  fsMountedOn: string
}

BlockDeviceStats (Type)

interface BlockDeviceStats {
  name: string
  readIos: bigint
  readMerges: bigint
  readSectors: bigint
  readTicks: bigint
  writeIos: bigint
  writeMerges: bigint
  writeSectors: bigint
  writeTicks: bigint
  inFlight: bigint
  ioTicks: bigint
  timeInQueue: bigint
}

Network (Type)

interface Network {
  name: string
  addrs: Array<NetworkAddrs>
}

interface NetworkAddrs {
  addr: string
  netmask: string
  addrType: AddrType
}

const enum AddrType {
  Ipv4 = 0,
  IPv6 = 1,
}

NetworkStats (Type)

interface NetworkStats {
  rxBytes: bigint
  txBytes: bigint
  rxPackets: bigint
  txPackets: bigint
  rxErrors: bigint
  txErrors: bigint
}

BatteryLife (Type)

interface BatteryLife {
  remainingCapacity: number
  remainingTime: bigint
}

Memory (Type)

interface Memory {
  free: bigint
  total: bigint
  used: bigint
}

LoadAverage (Type)

interface LoadAverage {
  one: number
  five: number
  fifteen: number
}

CPULoad (Type)

interface CPULoad {
  user: number
  nice: number
  system: number
  interrupt: number
  idle: number
}

ConvertResult (Type)

interface ConvertResult {
  value: string
  unit: string
}

ConvertOption (Type)

interface ConvertOption {
  advance: Advance
  /** Decimal point */
  precision: number
}

/**
 * unit enum for stat option
 * B -> KB, 1000 bytes
 * B -> KIB, 1024 bytes
 */
export const enum Advance {
  /** 1000 */
  Kilobase = 1000,
  /** 1024 */
  Binary = 1024,
}

How to Develop

Development requirements

• Install the latest Rust
• Install Node.js@10+ which fully supported Node-API
• Install yarn@1.x

Test in local

• yarn
• yarn build
• yarn test

Release Notes

SEE CHANGELOG

Thanks

systemstat

napi-rs