{"id":86853,"date":"2020-06-30T19:41:57","date_gmt":"2020-06-30T17:41:57","guid":{"rendered":"https:\/\/prohoster.info\/blog\/administrirovanie\/monitoring-oshibok-s-pomoshhyu-sentry-vo-frontend-prilozheniyah-napisannyh-na-javascript-chast-1"},"modified":"2020-06-30T19:41:57","modified_gmt":"2020-06-30T17:41:57","slug":"monitoring-oshibok-s-pomoshhyu-sentry-vo-frontend-prilozheniyah-napisannyh-na-javascript-chast-1","status":"publish","type":"post","link":"https:\/\/prohoster.info\/nl\/blog\/administrirovanie\/monitoring-oshibok-s-pomoshhyu-sentry-vo-frontend-prilozheniyah-napisannyh-na-javascript-chast-1","title":{"rendered":"Foutmonitoring met Sentry in frontend-applicaties geschreven in JavaScript: Deel 1","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Dienst <em>Sentry<\/em> maakt het mogelijk om bugs op afstand te monitoren in frontend-applicaties geschreven in <em>JavaScript<\/em>.<\/p>\n<p><\/p>\n<p><img decoding=\"async\" alt=\"Foutmonitoring met Sentry in frontend-applicaties geschreven in JavaScript: Deel 1\" src=\"\/wp-content\/uploads\/2020\/06\/26936c2af48cb0d849eca4abd21b7deb.jpg\" style=\"display:block;margin: 0 auto;\" \/><\/p>\n<p><\/p>\n<p>Het oplossen van problemen in frontend-applicaties op <em>JavaScript<\/em> kan een lastige opgave zijn, omdat ze zich in de browser van de gebruiker voordoen, waartoe u vaak geen toegang heeft. Echter, <em>Sentry<\/em> biedt de mogelijkheid om bugs op afstand te monitoren.<\/p>\n<p><noindex><a rel=\"nofollow\" name=\"habracut\"><\/a><\/noindex><\/p>\n<p><noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/larkintuckerllc\/hello-sentry\">Hier<\/a><\/noindex> kun je de oplossingen downloaden die in dit artikel zijn besproken.<\/p>\n<p><\/p>\n<p><strong>Wat is nodig<\/strong><\/p>\n<p><\/p>\n<p>Als je deze voorbeelden wilt gebruiken, heb je nodig:<\/p>\n<p><\/p>\n<ul>\n<li><noindex><a rel=\"nofollow\" href=\"https:\/\/nodejs.org\/en\/\"><em>Node.js<\/em><\/a><\/noindex>: Een multifunctioneel ontwikkelhulpmiddel dat geen onderdeel is van de applicatie. We hebben de laatste LTS-versie (8.12.0) gedownload.<\/li>\n<li><em>Sentry<\/em>: Of een account bij de Sentry-dienst (je kunt tot 10.000 bugs per maand gratis registreren) of een lokale Sentry-installatie \u2014 <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/getsentry\/onpremise\">https:\/\/github.com\/getsentry\/onpremise<\/a><\/noindex><\/li>\n<\/ul>\n<p><\/p>\n<p><strong>Installatie op je server<\/strong><\/p>\n<p><\/p>\n<p>Om Sentry On-Premise op je server te installeren, zijn er 2 paden<\/p>\n<p><\/p>\n<ol>\n<li>\n<p>De rpm samenstellen en installeren \u2014 <noindex><a rel=\"nofollow\" href=\"https:\/\/habr.com\/ru\/post\/500632\/\">https:\/\/habr.com\/ru\/post\/500632\/<\/a><\/noindex><\/p>\n<p>\n<\/li>\n<li>\n<p>Gebruik de offici\u00eble installer:<\/p>\n<p><\/p>\n<pre><code class=\"plaintext\">Installeer docker en docker-compose op de server\ngit clone https:\/\/github.com\/getsentry\/onpremise.git\n.\/install.sh<\/code><\/pre>\n<p>\n<\/li>\n<\/ol>\n<p><\/p>\n<p><strong>Standaard gebruik<\/strong><\/p>\n<p><\/p>\n<p>Om te beginnen, voeg een nieuw <em>Sentry<\/em>-project voor de applicatie toe vanaf de website van de dienst. Na het kiezen van de vereiste taal ontvang je de bijbehorende documentatie. In ons geval hebben we gekozen voor <em>JavaScript<\/em>.<\/p>\n<p><\/p>\n<p>Het eerste voorbeeld is standaard <em>JavaScript<\/em>. Hier zijn twee knoppen: <em>\u201eHallo\u201d<\/em> (Hello) en <em>\u201eFout\u201d<\/em> (Error).<\/p>\n<p><\/p>\n<p>Nadat je op de knop hebt geklikt, <em>\u201eHallo\u201d<\/em>zal het scherm opnieuw laden en zal het blok <em>try<\/em> de bug detecteren en vastleggen. Nadat de bug 'gevangen' is, wordt het foutbericht handmatig naar de dienst verzonden. <em>Sentry<\/em>.<\/p>\n<p><\/p>\n<p>De knop \u201eFout\u201d maakt het eenvoudig om een bug te detecteren.<\/p>\n<p><\/p>\n<p><em>vanilla \/ index.html<\/em><\/p>\n<p><\/p>\n<pre><code class=\"html\">&lt;!DOCTYPE html&gt;\n&lt;html&gt;\n&lt;head&gt;\n&lt;meta charset=&quot;UTF-8&quot;&gt;\n&lt;title&gt;Vanille&lt;\/title&gt;\n&lt;\/head&gt;\n&lt;body&gt;\n  &lt;button id=&quot;hello&quot;&gt;Hallo&lt;\/button&gt;\n  &lt;button id=&quot;error&quot;&gt;Fout&lt;\/button&gt;\n  &lt;div id=&quot;output&quot;&gt;&lt;\/div&gt;\n  &lt;script src=&quot;https:\/\/browser.sentry-cdn.com\/4.0.5\/bundle.min.js&quot; crossorigin=&quot;anonymous&quot;&gt;&lt;\/script&gt;\n  &lt;script&gt;\n    (function () {\n      &#039;use strict&#039;;\n      Sentry.init({ dsn: &#039;https:\/\/b5bf359072254626aba8e64368e77b7d@sentry.io\/1289664&#039; });\n      var helloEl = document.getElementById(&#039;hello&#039;);\n      var errorEl = document.getElementById(&#039;error&#039;);\n      var outputEl = document.getElementById(&#039;output&#039;);\n      helloEl.addEventListener(&#039;click&#039;, handleHelloClick);\n      errorEl.addEventListener(&#039;click&#039;, handleErrorClick);\n      function handleHelloClick() {\n        outputEl.innerHTML = &#039;Hello World&#039;;\n        try {\n          throw new Error(&#039;Caught&#039;);\n        } catch (err) {\n          Sentry.captureException(err);\n        }\n      }\n      function handleErrorClick() {\n        throw new Error(&#039;Uncaught&#039;);\n      }\n    })();\n  &lt;\/script&gt;\n&lt;\/body&gt;\n&lt;\/html&gt;<\/code><\/pre>\n<p><\/p>\n<p>Aantekeningen:<\/p>\n<p><\/p>\n<ul>\n<li>Sentry wordt ge\u00efnstalleerd vanuit de CDN en verschijnt als een globale variabele.<\/li>\n<li>Eerder hebben we Sentry gestart in onze JavaScript-code.<\/li>\n<\/ul>\n<p><\/p>\n<p>Om dit voorbeeld te testen, kunnen we gebruik maken van een statisch webserverplatform, <em>Node.js<\/em>: <em>http-server.<\/em>Ga naar de map waar het bestand <em>index.html<\/em>is opgeslagen, en voer (de optie met schakel de caching uit) de volgende regel in om het adres in de browser te openen: <noindex><a rel=\"nofollow\" href=\"http:\/\/localhost:8080\/\"><em>http:\/\/localhost:8080<\/em><\/a><\/noindex>.<\/p>\n<p><\/p>\n<p><strong>Hoe gevangen bugs worden weergegeven<\/strong><\/p>\n<p><\/p>\n<p>Klik eerst op de knop <em>\u201eHallo\u201d<\/em>.<\/p>\n<p><\/p>\n<p><img decoding=\"async\" alt=\"Foutmonitoring met Sentry in frontend-applicaties geschreven in JavaScript: Deel 1\" src=\"\/wp-content\/uploads\/2020\/06\/ce1390a129b56988a5630b65d7152b85.jpg\" style=\"display:block;margin: 0 auto;\" \/><\/p>\n<p><\/p>\n<p>We hebben een bug gevangen, daarom komt deze niet omhoog in de oproepstack en wordt deze niet in de console gemonitord. Echter, aangezien we het <em>Sentry<\/em> foutrapport handmatig verzenden, zullen we de melding ervan in het account zien.<\/p>\n<p><\/p>\n<p><img decoding=\"async\" alt=\"Foutmonitoring met Sentry in frontend-applicaties geschreven in JavaScript: Deel 1\" src=\"\/wp-content\/uploads\/2020\/06\/4660395849c963cf6b6bce03cdf74013.jpg\" style=\"display:block;margin: 0 auto;\" \/><\/p>\n<p><\/p>\n<p>Aantekeningen:<\/p>\n<p><\/p>\n<ul>\n<li>We can track which line (24) the bug snuck into.<\/li>\n<li>Moreover, the navigation chain shows the browser actions that led to the error.<\/li>\n<\/ul>\n<p><\/p>\n<p><strong>How uncaught bugs are displayed.<\/strong><\/p>\n<p><\/p>\n<p>Click the button. <em>\u2018Error.\u2019<\/em><\/p>\n<p><\/p>\n<p><img decoding=\"async\" alt=\"Foutmonitoring met Sentry in frontend-applicaties geschreven in JavaScript: Deel 1\" src=\"\/wp-content\/uploads\/2020\/06\/d6b3e92ac9bda497d6bb5f2987bef8d9.jpg\" style=\"display:block;margin: 0 auto;\" \/><\/p>\n<p><\/p>\n<p>The bug bubbles up the call stack and thus an error message is displayed in the console. After this, Sentry automatically monitors the bug without any additional actions.<\/p>\n<p><\/p>\n<p><img decoding=\"async\" alt=\"Foutmonitoring met Sentry in frontend-applicaties geschreven in JavaScript: Deel 1\" src=\"\/wp-content\/uploads\/2020\/06\/554ada29ebadba636ad7e0edb0b8a104.jpg\" style=\"display:block;margin: 0 auto;\" \/><\/p>\n<p><\/p>\n<p>Aantekeningen:<\/p>\n<p><\/p>\n<ul>\n<li>We can see which line (30) the bug got lost in.<\/li>\n<li>No navigation chain is provided (I don't quite understand why).<\/li>\n<\/ul>\n<p><\/p>\n<p><strong>How to ensure the security of the project.<\/strong><\/p>\n<p><\/p>\n<p>You may have noticed how we control the pages that can send error reports to our project. <em>Sentry<\/em>; using <em>dsn<\/em> records. The problem is that anyone who views the source code of your page can see the input.<\/p>\n<p><\/p>\n<p>To prevent this, you need to limit the number of domains that can submit error reports to our project. In this example, we used <em>localhost<\/em> (local host). This option is configured in the settings tab of the <em>Sentry<\/em>-project, <em>Sentry Project Setting<\/em>.<\/p>\n<p><\/p>\n<p><img decoding=\"async\" alt=\"Foutmonitoring met Sentry in frontend-applicaties geschreven in JavaScript: Deel 1\" src=\"\/wp-content\/uploads\/2020\/06\/fc8990a261c2c3673a9b8eda6eaf1fd0.jpg\" style=\"display:block;margin: 0 auto;\" \/><\/p>\n<p><\/p>\n<p><strong>Releases<\/strong><\/p>\n<p><\/p>\n<p>If you think about how to use <em>Sentry<\/em> in various versions of our application, we need some mechanism that will mark errors with a version number.<\/p>\n<p><\/p>\n<p>We wouldn\u2019t want a bug we fixed to reappear, while thinking that what we fixed didn\u2019t work. It could also happen that the user launched an older, cached version of the application.<\/p>\n<p><\/p>\n<p>To solve the problem, you need to enter the identifier <em>of the release<\/em> (version) when launching <em>Sentry<\/em>.<\/p>\n<p><\/p>\n<p><em>vanilla \/ index.html<\/em><\/p>\n<p><\/p>\n<pre><code class=\"javascript\">...\nvar RELEASE = '0.1.0';\nSentry.init({\n  dsn: 'https:\/\/b5bf359072254626aba8e64368e77b7d@sentry.io\/1289664',\n  release: RELEASE,\n});\n...<\/code><\/pre>\n<p><\/p>\n<p>After this, all new errors will be marked as <em>release (0.1.0)<\/em>, meaning they will be linked to the correct version of the code.<\/p>\n<p><\/p>\n<p><img decoding=\"async\" alt=\"Foutmonitoring met Sentry in frontend-applicaties geschreven in JavaScript: Deel 1\" src=\"\/wp-content\/uploads\/2020\/06\/b9776d3b6f9ebe94915c53374937dddc.jpg\" style=\"display:block;margin: 0 auto;\" \/><\/p>\n<p><\/p>\n<p>Aantekeningen:<\/p>\n<p><\/p>\n<ul>\n<li>We examined a simple way to use releases.<\/li>\n<li>Sentry allows for a more <noindex><a rel=\"nofollow\" href=\"https:\/\/docs.sentry.io\/learn\/releases\/?platform=javascript\"><em>complex<\/em> use of them. <em>usage<\/em><\/a><\/noindex>, which is closely related to <em>GitHub<\/em>. This feature allows tracking bugs before certain operations are performed.<\/li>\n<\/ul>\n<p><\/p>\n<p>P.S. The second part is longer, so it will be in a separate post.<\/p>\n<p><\/p>\n<p>P.S. Telegram chat for Sentry. <noindex><a rel=\"nofollow\" href=\"https:\/\/t.me\/sentry_ru\">https:\/\/t.me\/sentry_ru<\/a><\/noindex><\/p>\n<p><\/p>\n<p>P.S. I forgot to mention that this is a translation of a post. <noindex><a rel=\"nofollow\" href=\"https:\/\/codeburst.io\/sentry-error-reporting-by-example-part-1-999b2df11556\">https:\/\/codeburst.io\/sentry-error-reporting-by-example-part-1-999b2df11556<\/a><\/noindex><\/p>\n<p>Bron: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/habr.com\/ru\/post\/508686\/\">habr.com<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u0421\u0435\u0440\u0432\u0438\u0441 Sentry \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u0435\u0442 \u0443\u0434\u0430\u043b\u0435\u043d\u043d\u043e \u043c\u043e\u043d\u0438\u0442\u043e\u0440\u0438\u0442\u044c \u0431\u0430\u0433\u0438 \u0432 \u0444\u0440\u043e\u043d\u0442\u0435\u043d\u0434-\u043f\u0440\u0438\u043b\u043e\u0436\u0435\u043d\u0438\u044f\u0445, \u043d\u0430\u043f\u0438\u0441\u0430\u043d\u043d\u044b\u0445 \u043d\u0430 JavaScript. \u041f\u043e\u043f\u044b\u0442\u043a\u0430 \u0443\u0441\u0442\u0440\u0430\u043d\u0438\u0442\u044c \u043f\u0440\u043e\u0431\u043b\u0435\u043c\u044b \u0432 \u0444\u0440\u043e\u043d\u0442\u0435\u043d\u0434-\u043f\u0440\u0438\u043b\u043e\u0436\u0435\u043d\u0438\u044f\u0445 \u043d\u0430 JavaScript \u043c\u043e\u0436\u0435\u0442 \u043e\u043a\u0430\u0437\u0430\u0442\u044c\u0441\u044f \u043d\u0435\u043f\u0440\u043e\u0441\u0442\u043e\u0439 \u0437\u0430\u0434\u0430\u0447\u043a\u043e\u0439, \u043f\u043e\u0441\u043a\u043e\u043b\u044c\u043a\u0443 \u043e\u043d\u0438 \u0432\u043e\u0437\u043d\u0438\u043a\u0430\u044e\u0442 \u0432 \u0431\u0440\u0430\u0443\u0437\u0435\u0440\u0435 \u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u0435\u043b\u044f, \u043a \u0447\u0435\u043c\u0443, \u0437\u0430\u0447\u0430\u0441\u0442\u0443\u044e, \u0443 \u0432\u0430\u0441 \u043d\u0435\u0442 \u0434\u043e\u0441\u0442\u0443\u043f\u0430. \u041e\u0434\u043d\u0430\u043a\u043e, Sentry \u0434\u0430\u0435\u0442 \u0432\u043e\u0437\u043c\u043e\u0436\u043d\u043e\u0441\u0442\u044c \u0443\u0434\u0430\u043b\u0435\u043d\u043d\u043e \u043c\u043e\u043d\u0438\u0442\u043e\u0440\u0438\u0442\u044c \u0431\u0430\u0433\u0438. \u0417\u0434\u0435\u0441\u044c \u043c\u043e\u0436\u043d\u043e \u0441\u043a\u0430\u0447\u0430\u0442\u044c \u0440\u0435\u0448\u0435\u043d\u0438\u044f, \u043a\u043e\u0442\u043e\u0440\u044b\u0435 \u0440\u0430\u0441\u0441\u043c\u0430\u0442\u0440\u0438\u0432\u0430\u043b\u0438\u0441\u044c \u0432 \u044d\u0442\u043e\u0439 \u0441\u0442\u0430\u0442\u044c\u0435. \u0427\u0442\u043e \u043d\u0435\u043e\u0431\u0445\u043e\u0434\u0438\u043c\u043e \u0415\u0441\u043b\u0438 \u0432\u044b [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":86854,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[688],"tags":[],"class_list":["post-86853","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-administrirovanie"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.3 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u0421\u0435\u0440\u0432\u0438\u0441 Sentry \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u0435\u0442 \u0443\u0434\u0430\u043b\u0435\u043d\u043d\u043e \u043c\u043e\u043d\u0438\u0442\u043e\u0440\u0438\u0442\u044c \u0431\u0430\u0433\u0438 \u0432 \u0444\u0440\u043e\u043d\u0442\u0435\u043d\u0434-\u043f\u0440\u0438\u043b\u043e\u0436\u0435\u043d\u0438\u044f\u0445, \u043d\u0430\u043f\u0438\u0441\u0430\u043d\u043d\u044b\u0445 \u043d\u0430 JavaScript.\" \/>\n\t<meta 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