react-healthy/src/hooks/useInterval.ts

Incrementally check and alert your users to the health of your APIs

import {useEffect, useRef} from 'react'

const useInterval = (callback: () => void, delay: number) => {
  const savedCallback = useRef<() => void | undefined>()

  // Remember the latest callback.
  useEffect(() => {
    savedCallback.current = callback
  }, [callback])

  // Set up the interval.
  useEffect(() => {
    function tick() {
      savedCallback.current?.()
    }
    if (delay !== null) {
      const id = setInterval(tick, delay)
      return () => clearInterval(id)
    }
  }, [delay])
}

export default useInterval