| import { useEffect } from 'react' |
| import { useRouter } from 'next/router' |
|
|
| |
| |
| const EVENT_LOG_KEY = 'router-event-log' |
|
|
| function getEventLog() { |
| const data = sessionStorage.getItem(EVENT_LOG_KEY) |
| return data ? JSON.parse(data) : [] |
| } |
|
|
| function clearEventLog() { |
| sessionStorage.removeItem(EVENT_LOG_KEY) |
| } |
|
|
| function addEvent(data) { |
| const eventLog = getEventLog() |
| eventLog.push(data) |
| sessionStorage.setItem(EVENT_LOG_KEY, JSON.stringify(eventLog)) |
| } |
|
|
| if (typeof window !== 'undefined') { |
| |
| window._clearEventLog = clearEventLog |
| window._getEventLog = getEventLog |
| } |
|
|
| function useLoggedEvent(event, serializeArgs = (...args) => args) { |
| const router = useRouter() |
| useEffect(() => { |
| const logEvent = (...args) => { |
| addEvent([event, ...serializeArgs(...args)]) |
| } |
| router.events.on(event, logEvent) |
| return () => router.events.off(event, logEvent) |
| }, [event, router.events, serializeArgs]) |
| } |
|
|
| function serializeErrorEventArgs(err, url, properties) { |
| return [err.message, err.cancelled, url, properties] |
| } |
|
|
| export default function MyApp({ Component, pageProps }) { |
| useLoggedEvent('routeChangeStart') |
| useLoggedEvent('routeChangeComplete') |
| useLoggedEvent('routeChangeError', serializeErrorEventArgs) |
| useLoggedEvent('beforeHistoryChange') |
| useLoggedEvent('hashChangeStart') |
| useLoggedEvent('hashChangeComplete') |
| return <Component {...pageProps} /> |
| } |
|
|
