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* [SW-tutorial] Refactor alarms API logic After doing some experiments (like closing all my browser windows which I never, EVER do...) I realized the tips logic was not working as expected, because [alarms do not persist across browser sessions[(https://developer.mozilla.org/en-US/docs/Mozilla/Add-ons/WebExtensions/API/alarms#:~:text=Alarms%20do%20not%20persist%20across%20browser%20sessions.) * Return storage set * Tech review
38 lines
1.0 KiB
JavaScript
38 lines
1.0 KiB
JavaScript
console.log('sw-tips.js');
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// Fetch tip & save in storage
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const updateTip = async () => {
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const response = await fetch('https://extension-tips.glitch.me/tips.json');
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const tips = await response.json();
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const randomIndex = Math.floor(Math.random() * tips.length);
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return chrome.storage.local.set({ tip: tips[randomIndex] });
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};
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const ALARM_NAME = 'tip';
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// Check if alarm exists to avoid resetting the timer.
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// The alarm might be removed when the browser session restarts.
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async function createAlarm() {
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const alarm = await chrome.alarms.get(ALARM_NAME);
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if (typeof alarm === 'undefined') {
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chrome.alarms.create(ALARM_NAME, {
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delayInMinutes: 1,
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periodInMinutes: 1440
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});
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updateTip();
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}
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}
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createAlarm();
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// Retrieve tip of the day
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chrome.alarms.onAlarm.addListener(updateTip);
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// Send tip to content script via messaging
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chrome.runtime.onMessage.addListener((message, sender, sendResponse) => {
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if (message.greeting === 'tip') {
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chrome.storage.local.get('tip').then(sendResponse);
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return true;
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}
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});
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