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July 19, 2021 21:15
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Using promises with chrome extension history API
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var microsecondsPerWeek = 1000 * 60 * 60 * 24 * 7; | |
var searchEpoch = microsecondsPerWeek * 52; | |
var oneYearAgo = (new Date).getTime() - searchEpoch; | |
// Chrome history API does not yet support promises, only callback | |
// So, wrap the chrome.history.search in a promise of our own | |
function chromeHistorySearchAsync() { | |
console.log("beginning query"); | |
return new Promise(function(resolve, reject) { | |
console.log("inside promise"); | |
chrome.history.search({'text': '', 'startTime': oneYearAgo, 'maxResults': 100}, (historyItems) => { | |
console.log(`query complete, ${historyItems.length} matches found`); | |
resolve(historyItems); | |
}); | |
}); | |
} | |
chromeHistorySearchAsync().then((historyItems) => { | |
var domainNames = new Map; | |
for (var i = 0; i < historyItems.length; i++) { | |
var url = historyItems[i].url; | |
// console.log(`DEBUG: url = ${url}`) | |
var matches = url.match(/^https?\:\/\/([^\/?#]+)(?:[\/?#]|$)/i); | |
var name = matches && matches[1]; | |
// console.log(`DEBUG: name = ${name}`) | |
// Note: chrome*:// urls will result in a null name | |
if (!domainNames.has(name)) { | |
domainNames.set(name, {"visits": 1}) | |
} else { | |
domainNames.get(name).visits += 1; | |
} | |
} | |
return domainNames; | |
}).then((domainNames) => { | |
domainNames.forEach((value, key) => { | |
console.log(`"${key}" : ${value.visits}`); | |
}); | |
}); | |
/** Sample output: | |
beginning query | |
inside promise | |
query complete, 100 matches found | |
"null" : 4 | |
"www.google.com" : 28 | |
"www.instagram.com" : 2 | |
"gist.github.com" : 5 | |
"mail.google.com" : 2 | |
"twitter.com" : 7 | |
"www.imdb.com" : 1 | |
"developer.mozilla.org" : 10 | |
"stackoverflow.com" : 1 | |
"developers.google.com" : 1 | |
"bluebirdjs.com" : 3 | |
"www.espn.com" : 1 | |
"vega.github.io" : 1 | |
"shop.blueorigin.com" : 2 | |
"www.blueorigin.com" : 2 | |
"imgur.com" : 6 | |
"help.imgur.com" : 1 | |
"www.libpng.org" : 1 | |
"www.loc.gov" : 1 | |
"en.wikipedia.org" : 1 | |
"github.com" : 12 | |
"www.npmjs.com" : 3 | |
"www.kaspersky.com" : 1 | |
"securelist.com" : 2 | |
"superuser.com" : 1 | |
"yarnpkg.com" : 1 | |
*/ |
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