https://github.com/lmzdev/delta-counter

Count average events per second in a timespan.
https://github.com/lmzdev/delta-counter

nodejs npm

Last synced: 2 months ago
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Count average events per second in a timespan.

• Host: GitHub
• URL: https://github.com/lmzdev/delta-counter
• Owner: lmzdev
• License: mit
• Created: 2023-01-06T16:22:37.000Z (over 2 years ago)
• Default Branch: main
• Last Pushed: 2023-01-09T12:43:55.000Z (over 2 years ago)
• Last Synced: 2025-03-02T01:28:13.698Z (3 months ago)
• Topics: nodejs, npm
• Language: TypeScript
• Homepage:
• Size: 51.8 KB
• Stars: 0
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# delta-counter

[![npm Build/Test](https://github.com/lmzdev/delta-counter/actions/workflows/node.js.yml/badge.svg)](https://github.com/lmzdev/delta-counter/actions/workflows/node.js.yml)

Count average events per second in a timespan. Just like adding a tally counter to ```setInterval()```.

## Example/Concept

```js

import * as Mqtt from 'mqtt'

import { DeltaCounter } from 'delta-counter'

const client = Mqtt.connect()

client.on('connect', () => {

    client.subscribe('#')

}

const intervalSec = 5

const dc = new DeltaCounter(intervalSec, (eventsPerSecond) => {

    console.log("Average number of messages per second: "+eventsPerSecond)

}).start()

client.on('message', () => dc.tick())

```