React-RealTime

Set of components which provides easy integration Pusher like notification service into your React application.

Installation

React Realtime requires React 16.8.0 or later.

npm i react-realtime

OR

yarn add react-realtime

Usage

All components and functions are available on the top-level export.

import {
  RealTimeProvider,
  RealTimeChannel,
  useRealTimeEventListener,
  useRealTimeEventTrigger,
  useRealTimeConnectionEventListener,
} from 'react-realtime'

Pusher example:

In that case, we need pusher client library. You can find it here.

Channel event listener example:

import React, { useState, useCallback } from 'react'
import { useRealTimeEventListener } from 'react-realtime'

const MyComponent = () => {
  const [name, setName] = useState('')
  const onMyEventCallback = useCallback(data => {
    // do something with real-time data
    // for example set username
    const { name } = data
    setName(name)
  }, [])

  useRealTimeEventListener('user-updated-event', onMyEventCallback)

  return <span>{`User: ${name}`}</span>
}

Channel event trigger example:

import React, { useMemo, useCallback } from 'react'
import { useRealTimeEventTrigger } from 'react-realtime'

const MyComponent = () => {
  const data = useMemo(() => {
    // for example return empty object
    return {}
  }, [])
  const trigger = useRealTimeEventTrigger()
  const handleClick = useCallback(() => {
    trigger('client-my-event', data)
  }, [])

  return <span onClick={handleClick}>My Component</span>
}

Connection event listener example:

import React, { useState, useCallback } from 'react'
import { useRealTimeConnectionEventListener } from 'react-realtime'

const MyComponent = () => {
  const [status, setStatus] = useState('connected')
  const onStateChange = useCallback(status => {
    setStatus(status)
  }, [])

  useRealTimeConnectionEventListener('state_change', onStateChange)

  return <span>{`Connection status: ${status}`}</span>
}

Use MyComponent inside appropriate channel

import React from 'react'
import Pusher from 'pusher-js'
import { RealTimeProvider, RealTimeChannel } from 'react-realtime'

// Use your own APP_KEY and APP_CLUSTER from pusher account
const pusher = new Pusher(APP_KEY, {
  cluster: APP_CLUSTER
});

const App = () => {
  return (
    <RealTimeProvider connector={pusher}>
      <RealTimeChannel name="my-channel">
        <MyComponent />
      </RealTimeChannel>
    </RealTimeProvider>
  )
}

Trigger an event from debug console inside pusher dashboard and watch how username appears in your app.

License

MIT