{"id":16226,"date":"2022-10-14T19:34:41","date_gmt":"2022-10-14T14:04:41","guid":{"rendered":"https:\/\/jassweb.com\/solved\/solved-respond-to-http-request-while-processing-in-the-background\/"},"modified":"2022-10-14T19:34:41","modified_gmt":"2022-10-14T14:04:41","slug":"solved-respond-to-http-request-while-processing-in-the-background","status":"publish","type":"post","link":"https:\/\/jassweb.com\/solved\/solved-respond-to-http-request-while-processing-in-the-background\/","title":{"rendered":"[Solved] Respond to HTTP request while processing in the background"},"content":{"rendered":"<p> [ad_1]<br \/>\n<\/p>\n<div id=\"answer-65892749\" class=\"answer js-answer accepted-answer js-accepted-answer\" data-answerid=\"65892749\" data-parentid=\"65892477\" data-score=\"0\" data-position-on-page=\"1\" data-highest-scored=\"1\" data-question-has-accepted-highest-score=\"1\" itemprop=\"acceptedAnswer\" itemscope itemtype=\"https:\/\/schema.org\/Answer\">\n<div class=\"post-layout\">\n<div class=\"votecell post-layout--left\"><\/div>\n<div class=\"answercell post-layout--right\">\n<div class=\"s-prose js-post-body\" itemprop=\"text\">\n<p>You&#8217;re doing all the processing in the background, but you&#8217;re still waiting for it to finish. The solution would be to just not wait. The best solution would move all of the handling elsewhere to a function you can just call with <code>go<\/code> to run it in the background, but the simplest solution leaving it inline would just be<\/p>\n<pre><code>w.WriteHeader(http.StatusAccepted)\ngo func() {\n    \/\/ START PRODUCER\/CONSUMER\n    jobs := make(chan *Job, 100)    \/\/ buffered channel\n    results := make(chan *Job, 100) \/\/ buffered channel\n\n    \/\/ start consumers\n    for i := 0; i &lt; 5; i++ { \/\/ 5 consumers\n        wg.Add(1)\n        go consume(i, jobs, results)\n    }\n    \/\/ start producing\n    go produce(jobs, csvFile)\n\n    \/\/ start processing\n    wg2.Add(1)\n    go process(results)\n\n    wg.Wait() \/\/ wait for all workers to finish processing jobs\n\n    close(results)\n\n    wg2.Wait() \/\/ wait for process to finish\n\n    log.Println(\"===&gt; Done Processing.\")\n}()\n<\/code><\/pre>\n<p>Note that you elided the CSV file handling, so you&#8217;ll need to ensure that it&#8217;s safe to use this way (i.e. that you haven&#8217;t <code>defer<\/code>ed closing or deleting the file, which would cause that to occur as soon as the handler returns).<\/p>\n<\/p><\/div>\n<div class=\"mt24\"><\/div>\n<\/div>\n<p>            <span class=\"d-none\" itemprop=\"commentCount\">1<\/span> <\/p><\/div>\n<\/div>\n<p>[ad_2]<\/p>\n<p>solved Respond to HTTP request while processing in the background <\/p>\n","protected":false},"excerpt":{"rendered":"<p>[ad_1] You&#8217;re doing all the processing in the background, but you&#8217;re still waiting for it to finish. The solution would be to just not wait. The best solution would move all of the handling elsewhere to a function you can just call with go to run it in the background, but the simplest solution leaving &#8230; <a title=\"[Solved] Respond to HTTP request while processing in the background\" class=\"read-more\" href=\"https:\/\/jassweb.com\/solved\/solved-respond-to-http-request-while-processing-in-the-background\/\" aria-label=\"More on [Solved] Respond to HTTP request while processing in the background\">Read more<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[320],"tags":[596,1535],"class_list":["post-16226","post","type-post","status-publish","format-standard","hentry","category-solved","tag-go","tag-http"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.5 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>[Solved] Respond to HTTP request while processing in the background - JassWeb<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/jassweb.com\/solved\/solved-respond-to-http-request-while-processing-in-the-background\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"[Solved] Respond to HTTP request while processing in the background - JassWeb\" \/>\n<meta property=\"og:description\" content=\"[ad_1] You&#8217;re doing all the processing in the background, but you&#8217;re still waiting for it to finish. The solution would be to just not wait. The best solution would move all of the handling elsewhere to a function you can just call with go to run it in the background, but the simplest solution leaving ... 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