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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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