{"id":4253,"date":"2019-05-28T12:16:28","date_gmt":"2019-05-28T17:16:28","guid":{"rendered":"https:\/\/blogs.mathworks.com\/videos\/?p=4253"},"modified":"2019-05-28T12:20:31","modified_gmt":"2019-05-28T17:20:31","slug":"my-web-scraping-app-only-get-html-content-if-page-list-changes","status":"publish","type":"post","link":"https:\/\/blogs.mathworks.com\/videos\/2019\/05\/28\/my-web-scraping-app-only-get-html-content-if-page-list-changes\/","title":{"rendered":"My Web Scraping App: Only Get HTML Content if Page List Changes"},"content":{"rendered":"<p>Currently, my (small scale) web scraping app reads the HTML content of the list of pages, then searches for pattern matches.<\/p>\n<p>I want to change it, so that it only reads the HTML content if the list of pages changes. This will make it quicker for me to iterate on different patterns. <\/p>\n<p>Features covered in this <a href=\"https:\/\/blogs.mathworks.com\/videos\/2015\/10\/29\/matlab-code-along-videos\/\">code-along<\/a> style video include:<\/p>\n<ul>\n<li><a href=\"https:\/\/www.mathworks.com\/products\/matlab\/app-designer.html\">App Designer<\/a><\/li>\n<\/ul>\n<p><div class=\"row\"><div class=\"col-xs-12 containing-block\"><div class=\"bc-outer-container add_margin_20\"><videoplayer><div class=\"video-js-container\"><video data-video-id=\"6041961259001\" data-video-category=\"blog\" data-autostart=\"false\" data-account=\"62009828001\" data-omniture-account=\"mathwgbl\" data-player=\"rJ9XCz2Sx\" data-embed=\"default\" id=\"mathworks-brightcove-player\" class=\"video-js\" controls><\/video><script src=\"\/\/players.brightcove.net\/62009828001\/rJ9XCz2Sx_default\/index.min.js\"><\/script><script>if (typeof(playerLoaded) === 'undefined') {var playerLoaded = false;}(function isVideojsDefined() {if (typeof(videojs) !== 'undefined') {videojs(\"mathworks-brightcove-player\").on('loadedmetadata', function() {playerLoaded = true;});} else {setTimeout(isVideojsDefined, 10);}})();<\/script><\/div><\/videoplayer><\/div><\/div><\/div><\/p>\n<p>Play the video in full screen mode for a better viewing experience.\u00a0<\/p>\n","protected":false},"excerpt":{"rendered":"<div class=\"thumbnail thumbnail_asset asset_overlay video\"><a href=\"https:\/\/blogs.mathworks.com\/videos\/2019\/05\/28\/my-web-scraping-app-only-get-html-content-if-page-list-changes\/?dir=autoplay\"><img decoding=\"async\" src=\"https:\/\/cf-images.us-east-1.prod.boltdns.net\/v1\/static\/62009828001\/4d162a7b-53ae-4e85-9b23-be8ba0661f86\/4d0439fb-7a6e-4d75-8d71-43f029391f3a\/1280x720\/match\/image.jpg\" onError=\"this.style.display ='none';\"\/><\/p>\n<div class=\"overlay_container\">\n      <span class=\"icon-video icon_color_null\"><time class=\"video_length\">25:58<\/time><\/span>\n      <\/div>\n<p>      <\/a><\/div>\n<p>Currently, my (small scale) web scraping app reads the HTML content of the list of pages, then searches for pattern matches.<br \/>\nI want to change it, so that it only reads the HTML content if the list of&#8230; <a class=\"read-more\" href=\"https:\/\/blogs.mathworks.com\/videos\/2019\/05\/28\/my-web-scraping-app-only-get-html-content-if-page-list-changes\/\">read more >><\/a><\/p>\n","protected":false},"author":133,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[33,27,4],"tags":[],"_links":{"self":[{"href":"https:\/\/blogs.mathworks.com\/videos\/wp-json\/wp\/v2\/posts\/4253"}],"collection":[{"href":"https:\/\/blogs.mathworks.com\/videos\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blogs.mathworks.com\/videos\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blogs.mathworks.com\/videos\/wp-json\/wp\/v2\/users\/133"}],"replies":[{"embeddable":true,"href":"https:\/\/blogs.mathworks.com\/videos\/wp-json\/wp\/v2\/comments?post=4253"}],"version-history":[{"count":6,"href":"https:\/\/blogs.mathworks.com\/videos\/wp-json\/wp\/v2\/posts\/4253\/revisions"}],"predecessor-version":[{"id":4269,"href":"https:\/\/blogs.mathworks.com\/videos\/wp-json\/wp\/v2\/posts\/4253\/revisions\/4269"}],"wp:attachment":[{"href":"https:\/\/blogs.mathworks.com\/videos\/wp-json\/wp\/v2\/media?parent=4253"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blogs.mathworks.com\/videos\/wp-json\/wp\/v2\/categories?post=4253"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blogs.mathworks.com\/videos\/wp-json\/wp\/v2\/tags?post=4253"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}