CINXE.COM
Where is the edge? - DEV Community
<!DOCTYPE html> <html lang="en"> <head> <meta charset="utf-8"> <title>Where is the edge? - DEV Community</title> <meta name="last-updated" content="2025-03-27 13:49:14 UTC"> <meta name="user-signed-in" content="false"> <meta name="head-cached-at" content="1743083354"> <meta name="environment" content="production"> <link rel="stylesheet" href="https://assets.dev.to/assets/minimal-0a971eb021d2dc2b145c1df786e1b97f418c6b2d066e79802fea980acb513937.css" media="all" id="main-minimal-stylesheet" /> <link rel="stylesheet" href="https://assets.dev.to/assets/views-1c703342dce6eac414f19ca7fd07bcf83cbe44088659758144e52e7fa1e92dd3.css" media="all" id="main-views-stylesheet" /> <link rel="stylesheet" href="https://assets.dev.to/assets/crayons-0f2fc85bc159498f8ae6fba58c460e6deba863d02d59dfa994c1954976ddb6cc.css" media="all" id="main-crayons-stylesheet" /> <script src="https://assets.dev.to/assets/base-ad2d9e99b951014e76f905afa7301404907dd6aa68d8f36eac206bec39f3c0d2.js" defer="defer"></script> <script src="https://assets.dev.to/assets/application-7258612fccf5d56314a6e4ad1898b4f818f474c4bb3485e302428d489a769a17.js" defer="defer"></script> <script src="https://assets.dev.to/assets/baseInitializers-b74902d56433062a87f5f1ce74769baf2a1a698772f46952b0ac72bc95c4abfd.js" defer="defer"></script> <script src="https://assets.dev.to/assets/baseTracking-b6bf73e5ee66633e151e7d5b7c6bbccedfa4c59e3615be97b98c4c0f543ddae7.js" defer="defer"></script> <meta name="search-script" content="https://assets.dev.to/assets/Search-7dcdad3172ab4501a4598fe8b716c7a88146e79fd42256d36fb1b83e27bf77cf.js"> <link rel="canonical" href="https://dev.to/fastly/where-is-the-edge-12j2" /> <meta name="description" content="In this series we’re learning about edge computing for the web. Part 1: An easy intro to edge... Tagged with webdev, learning, serverless, cloud."> <meta name="keywords" content="webdev, learning, serverless, cloud, software, coding, development, engineering, inclusive, community"> <meta property="og:type" content="article" /> <meta property="og:url" content="https://dev.to/fastly/where-is-the-edge-12j2" /> <meta property="og:title" content="Where is the edge?" /> <meta property="og:description" content="In this series we’re learning about edge computing for the web. Part 1: An easy intro to edge..." /> <meta property="og:site_name" content="DEV Community" /> <meta name="twitter:site" content="@thepracticaldev"> <meta name="twitter:creator" content="@"> <meta name="twitter:title" content="Where is the edge?"> <meta name="twitter:description" content="In this series we’re learning about edge computing for the web. Part 1: An easy intro to edge..."> <meta name="twitter:card" content="summary_large_image"> <meta name="twitter:widgets:new-embed-design" content="on"> <meta name="robots" content="max-snippet:-1, max-image-preview:large, max-video-preview:-1"> <meta property="og:image" content="https://media2.dev.to/dynamic/image/width=1000,height=500,fit=cover,gravity=auto,format=auto/https%3A%2F%2Fdev-to-uploads.s3.amazonaws.com%2Fuploads%2Farticles%2Fyjmier5gim3pcc8coonc.png" /> <meta name="twitter:image:src" content="https://media2.dev.to/dynamic/image/width=1000,height=500,fit=cover,gravity=auto,format=auto/https%3A%2F%2Fdev-to-uploads.s3.amazonaws.com%2Fuploads%2Farticles%2Fyjmier5gim3pcc8coonc.png"> <meta name="viewport" content="width=device-width, initial-scale=1.0, viewport-fit=cover"> <link rel="icon" type="image/x-icon" href="https://media2.dev.to/dynamic/image/width=32,height=,fit=scale-down,gravity=auto,format=auto/https%3A%2F%2Fdev-to-uploads.s3.amazonaws.com%2Fuploads%2Farticles%2F8j7kvp660rqzt99zui8e.png" /> <link rel="apple-touch-icon" href="https://media2.dev.to/dynamic/image/width=180,height=,fit=scale-down,gravity=auto,format=auto/https%3A%2F%2Fdev-to-uploads.s3.amazonaws.com%2Fuploads%2Farticles%2F8j7kvp660rqzt99zui8e.png"> <link rel="apple-touch-icon" sizes="152x152" href="https://media2.dev.to/dynamic/image/width=152,height=,fit=scale-down,gravity=auto,format=auto/https%3A%2F%2Fdev-to-uploads.s3.amazonaws.com%2Fuploads%2Farticles%2F8j7kvp660rqzt99zui8e.png"> <link rel="apple-touch-icon" sizes="180x180" href="https://media2.dev.to/dynamic/image/width=180,height=,fit=scale-down,gravity=auto,format=auto/https%3A%2F%2Fdev-to-uploads.s3.amazonaws.com%2Fuploads%2Farticles%2F8j7kvp660rqzt99zui8e.png"> <link rel="apple-touch-icon" sizes="167x167" href="https://media2.dev.to/dynamic/image/width=167,height=,fit=scale-down,gravity=auto,format=auto/https%3A%2F%2Fdev-to-uploads.s3.amazonaws.com%2Fuploads%2Farticles%2F8j7kvp660rqzt99zui8e.png"> <link href="https://media2.dev.to/dynamic/image/width=192,height=,fit=scale-down,gravity=auto,format=auto/https%3A%2F%2Fdev-to-uploads.s3.amazonaws.com%2Fuploads%2Farticles%2F8j7kvp660rqzt99zui8e.png" rel="icon" sizes="192x192" /> <link href="https://media2.dev.to/dynamic/image/width=128,height=,fit=scale-down,gravity=auto,format=auto/https%3A%2F%2Fdev-to-uploads.s3.amazonaws.com%2Fuploads%2Farticles%2F8j7kvp660rqzt99zui8e.png" rel="icon" sizes="128x128" /> <meta name="apple-mobile-web-app-title" content="dev.to"> <meta name="application-name" content="dev.to"> <meta name="theme-color" content="#ffffff" media="(prefers-color-scheme: light)"> <meta name="theme-color" content="#000000" media="(prefers-color-scheme: dark)"> <link rel="search" href="https://dev.to/open-search.xml" type="application/opensearchdescription+xml" title="DEV Community" /> <meta property="forem:name" content="DEV Community" /> <meta property="forem:logo" content="https://media2.dev.to/dynamic/image/width=512,height=,fit=scale-down,gravity=auto,format=auto/https%3A%2F%2Fdev-to-uploads.s3.amazonaws.com%2Fuploads%2Farticles%2F8j7kvp660rqzt99zui8e.png" /> <meta property="forem:domain" content="dev.to" /> </head> <body class="sans-serif-article-body default-header" data-user-status="logged-out" data-community-name="DEV Community" data-subscription-icon="https://assets.dev.to/assets/subscription-icon-805dfa7ac7dd660f07ed8d654877270825b07a92a03841aa99a1093bd00431b2.png" data-locale="en" data-honeybadger-key="hbp_nqu4Y66HuEKlD6YRGssZuRQnPOjDm50J8Zkr" data-deployed-at="2025-03-26T20:54:45Z" data-latest-commit-id="5ce6dad299f97236d3bd3b2641de9b4826e9aee7" data-ga-tracking="UA-71991109-1" data-cookie-banner-user-context="logged_out_only" data-cookie-banner-platform-context="off" data-algolia-id="PRSOBFP46H" data-algolia-search-key="9aa7d31610cba78851c9b1f63776a9dd" data-algolia-display="true" data-dynamic-url-component="bmar11" data-ga4-tracking-id="G-TYEM8Y3JN3"> <script> if (navigator.userAgent === 'ForemWebView/1' || window.frameElement) { document.body.classList.add("hidden-shell"); } </script> <link rel="stylesheet" href="https://assets.dev.to/assets/minimal-0a971eb021d2dc2b145c1df786e1b97f418c6b2d066e79802fea980acb513937.css" media="all" id="secondary-minimal-stylesheet" /> <link rel="stylesheet" href="https://assets.dev.to/assets/views-1c703342dce6eac414f19ca7fd07bcf83cbe44088659758144e52e7fa1e92dd3.css" media="all" id="secondary-views-stylesheet" /> <link rel="stylesheet" href="https://assets.dev.to/assets/crayons-0f2fc85bc159498f8ae6fba58c460e6deba863d02d59dfa994c1954976ddb6cc.css" media="all" id="secondary-crayons-stylesheet" /> <div id="body-styles"> <style> :root { --accent-brand-lighter-rgb: 80, 99, 301; --accent-brand-rgb: 59, 73, 223; --accent-brand-darker-rgb: 47, 58, 178; } </style> </div> <div id="audiocontent" data-podcast=""> </div> <div class="navigation-progress" id="navigation-progress"></div> <header id="topbar" class="crayons-header topbar print-hidden"> <span id="route-change-target" tabindex="-1"></span> <a href="#main-content" class="skip-content-link">Skip to content</a> <div class="crayons-header__container"> <span class="inline-block m:hidden "> <button class="c-btn c-btn--icon-alone js-hamburger-trigger mx-2"> <svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" role="img" aria-labelledby="a51g0qw2taxrl6ua1qx32oro2eukq9nq" class="crayons-icon"><title id="a51g0qw2taxrl6ua1qx32oro2eukq9nq">Navigation menu</title> <path d="M3 4h18v2H3V4zm0 7h18v2H3v-2zm0 7h18v2H3v-2z"></path> </svg> </button> </span> <a href="/" class="site-logo" aria-label="DEV Community Home"> <img class="site-logo__img" src="https://media2.dev.to/dynamic/image/quality=100/https://dev-to-uploads.s3.amazonaws.com/uploads/logos/resized_logo_UQww2soKuUsjaOGNB38o.png" style="aspect-ratio: 10 / 8" alt="DEV Community"> </a> <div class="crayons-header--search js-search-form" id="header-search"> <form accept-charset="UTF-8" method="get" action="/search" role="search"> <div class="crayons-fields crayons-fields--horizontal"> <div class="crayons-field flex-1 relative"> <input id="search-input" class="crayons-header--search-input crayons-textfield js-search-input" type="text" id="nav-search" name="q" placeholder="Find related posts..." autocomplete="off" /> <button type="submit" aria-label="Search" class="c-btn c-btn--icon-alone absolute inset-px right-auto mt-0 py-0"> <svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" role="img" aria-labelledby="ahrc0bikvb4wqr1ut451vx65y1olop8t" aria-hidden="true" class="crayons-icon"><title id="ahrc0bikvb4wqr1ut451vx65y1olop8t">Search</title> <path d="M18.031 16.617l4.283 4.282-1.415 1.415-4.282-4.283A8.96 8.96 0 0111 20c-4.968 0-9-4.032-9-9s4.032-9 9-9 9 4.032 9 9a8.96 8.96 0 01-1.969 5.617zm-2.006-.742A6.977 6.977 0 0018 11c0-3.868-3.133-7-7-7-3.868 0-7 3.132-7 7 0 3.867 3.132 7 7 7a6.977 6.977 0 004.875-1.975l.15-.15z"></path> </svg> </button> <a class="crayons-header--search-brand-indicator" href="https://www.algolia.com/developers/?utm_source=devto&utm_medium=referral" target="_blank" rel="noopener noreferrer"> Powered by <svg xmlns="http://www.w3.org/2000/svg" id="Layer_1" width="24" height="24" viewBox="0 0 500 500.34" role="img" aria-labelledby="a5afun23dkjd4w8qmpyxp31b43wxep8v" aria-hidden="true" class="crayons-icon"><title id="a5afun23dkjd4w8qmpyxp31b43wxep8v">Search</title> <defs></defs><path class="cls-1" d="M250,0C113.38,0,2,110.16,.03,246.32c-2,138.29,110.19,252.87,248.49,253.67,42.71,.25,83.85-10.2,120.38-30.05,3.56-1.93,4.11-6.83,1.08-9.52l-23.39-20.74c-4.75-4.22-11.52-5.41-17.37-2.92-25.5,10.85-53.21,16.39-81.76,16.04-111.75-1.37-202.04-94.35-200.26-206.1,1.76-110.33,92.06-199.55,202.8-199.55h202.83V407.68l-115.08-102.25c-3.72-3.31-9.43-2.66-12.43,1.31-18.47,24.46-48.56,39.67-81.98,37.36-46.36-3.2-83.92-40.52-87.4-86.86-4.15-55.28,39.65-101.58,94.07-101.58,49.21,0,89.74,37.88,93.97,86.01,.38,4.28,2.31,8.28,5.53,11.13l29.97,26.57c3.4,3.01,8.8,1.17,9.63-3.3,2.16-11.55,2.92-23.6,2.07-35.95-4.83-70.39-61.84-127.01-132.26-131.35-80.73-4.98-148.23,58.18-150.37,137.35-2.09,77.15,61.12,143.66,138.28,145.36,32.21,.71,62.07-9.42,86.2-26.97l150.36,133.29c6.45,5.71,16.62,1.14,16.62-7.48V9.49C500,4.25,495.75,0,490.51,0H250Z"></path> </svg> Algolia </a> </div> </div> </form> </div> <div class="flex items-center h-100 ml-auto"> <div class="flex" id="authentication-top-nav-actions"> <span class="hidden m:block"> <a href="https://dev.to/enter" class="c-link c-link--block mr-2 whitespace-nowrap ml-auto" data-no-instant> Log in </a> </span> <a href="https://dev.to/enter?state=new-user" data-tracking-id="ca_top_nav" data-tracking-source="top_navbar" class="c-cta c-cta--branded whitespace-nowrap mr-2" data-no-instant> Create account </a> </div> </div> </div> </header> <div class="hamburger"> <div class="hamburger__content"> <header class="hamburger__content__header"> <h2 class="fs-l fw-bold flex-1 break-word lh-tight">DEV Community</h2> <button class="c-btn c-btn--icon-alone js-hamburger-trigger shrink-0" aria-label="Close"> <svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" role="img" aria-labelledby="a4e8hm6dci299ggaf0rezfzxf8sllter" aria-hidden="true" class="crayons-icon c-btn__icon"><title id="a4e8hm6dci299ggaf0rezfzxf8sllter">Close</title><path d="M12 10.586l4.95-4.95 1.414 1.414-4.95 4.95 4.95 4.95-1.414 1.414-4.95-4.95-4.95 4.95-1.414-1.414 4.95-4.95-4.95-4.95L7.05 5.636l4.95 4.95z"></path></svg> </button> </header> <div class="p-2 js-navigation-links-container" id="authentication-hamburger-actions"> </div> </div> <div class="hamburger__overlay js-hamburger-trigger"></div> </div> <div id="active-broadcast" class="broadcast-wrapper"></div> <div id="page-content" class="wrapper stories stories-show articletag-webdev articletag-learning articletag-serverless articletag-cloud articleuser-154099 articleorg-2298" data-current-page="stories-show"> <div id="page-content-inner" data-internal-nav="false"> <div id="page-route-change" class="screen-reader-only" aria-live="polite" aria-atomic="true"></div> <link rel="prefetch" href="/reactions?article_id=1948695"> <style> .html-variant-wrapper { display: none} </style> <script src="https://unpkg.com/@webcomponents/webcomponentsjs@2.2.10/webcomponents-loader.js" integrity="sha384-3HK5hxQbkFqOIxMbpROlRmRtYl2LBZ52t+tqcjzsmr9NJuOWQxl8RgQSyFvq2lhy" crossorigin="anonymous" defer></script> <script src="https://assets.dev.to/assets/webShare-0686f0b9ac40589694ef6ae6a6202c44119bc781c254f6cf6d52d8a008461156.js" defer="defer"></script> <script src="https://assets.dev.to/assets/articlePage-ff7786f9ca30f9a27ba077d38a79026bc9b6f706ad8ab3f175ef95cb1c8f0fd4.js" defer="defer"></script> <script src="https://assets.dev.to/assets/commentDropdowns-7a28d130e5b78d38b30a9495a964003a66bd64fa455fc70b766d69cf06b9ba24.js" defer="defer"></script> <script type="application/ld+json"> {"@context":"http://schema.org","@type":"Article","mainEntityOfPage":{"@type":"WebPage","@id":"https://dev.to/fastly/where-is-the-edge-12j2"},"url":"https://dev.to/fastly/where-is-the-edge-12j2","image":["https://media2.dev.to/dynamic/image/width=1080,height=1080,fit=cover,gravity=auto,format=auto/https%3A%2F%2Fdev-to-uploads.s3.amazonaws.com%2Fuploads%2Farticles%2Fyjmier5gim3pcc8coonc.png","https://media2.dev.to/dynamic/image/width=1280,height=720,fit=cover,gravity=auto,format=auto/https%3A%2F%2Fdev-to-uploads.s3.amazonaws.com%2Fuploads%2Farticles%2Fyjmier5gim3pcc8coonc.png","https://media2.dev.to/dynamic/image/width=1600,height=900,fit=cover,gravity=auto,format=auto/https%3A%2F%2Fdev-to-uploads.s3.amazonaws.com%2Fuploads%2Farticles%2Fyjmier5gim3pcc8coonc.png"],"publisher":{"@context":"http://schema.org","@type":"Organization","name":"DEV Community","logo":{"@context":"http://schema.org","@type":"ImageObject","url":"https://media2.dev.to/dynamic/image/width=192,height=,fit=scale-down,gravity=auto,format=auto/https%3A%2F%2Fdev-to-uploads.s3.amazonaws.com%2Fuploads%2Farticles%2F8j7kvp660rqzt99zui8e.png","width":"192","height":"192"}},"headline":"Where is the edge?","author":{"@context":"http://schema.org","@type":"Person","url":"https://dev.to/suesmith","name":"Sue Smith"},"datePublished":"2024-08-06T13:12:05Z","dateModified":"2024-09-10T14:20:13Z"} </script> <div class="crayons-layout crayons-layout--3-cols crayons-layout--article"> <aside class="crayons-layout__sidebar-left" aria-label="Article actions"> <div class="crayons-article-actions print-hidden"> <div class="crayons-article-actions__inner"> <div class="reaction-drawer__outer hoverdown" style=""> <button id="reaction-drawer-trigger" aria-label="reaction-drawer-trigger" aria-pressed="false" class="hoverdown-trigger crayons-reaction pseudo-reaction crayons-tooltip__activator relative"> <span class="crayons-reaction__icon crayons-reaction__icon--borderless crayons-reaction--like crayons-reaction__icon--inactive" style="width: 40px; height: 40px"> <svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none" role="img" aria-hidden="true" class="crayons-icon"> <g clip-path="url(#clip0_988_3276)"> <path d="M19 14V17H22V19H18.999L19 22H17L16.999 19H14V17H17V14H19ZM20.243 4.75698C22.505 7.02498 22.583 10.637 20.479 12.992L19.059 11.574C20.39 10.05 20.32 7.65998 18.827 6.16998C17.324 4.67098 14.907 4.60698 13.337 6.01698L12.002 7.21498L10.666 6.01798C9.09103 4.60598 6.67503 4.66798 5.17203 6.17198C3.68203 7.66198 3.60703 10.047 4.98003 11.623L13.412 20.069L12 21.485L3.52003 12.993C1.41603 10.637 1.49503 7.01898 3.75603 4.75698C6.02103 2.49298 9.64403 2.41698 12 4.52898C14.349 2.41998 17.979 2.48998 20.242 4.75698H20.243Z" fill="#525252"></path> </g> <defs> <clipPath id="clip0_988_3276"> <rect width="24" height="24" fill="white"></rect> </clipPath> </defs> </svg> </span> <span class="crayons-reaction__icon crayons-reaction__icon--borderless crayons-reaction__icon--active" style="width: 40px; height: 40px"> <img aria_hidden="true" height="24" width="24" src="https://assets.dev.to/assets/heart-plus-active-9ea3b22f2bc311281db911d416166c5f430636e76b15cd5df6b3b841d830eefa.svg" /> </span> <span class="crayons-reaction__count" id="reaction_total_count"> <span class="bg-base-40 opacity-25 p-2 inline-block radius-default"></span> </span> <span class="crayons-tooltip__content"> Add reaction </span> </button> <div class="reaction-drawer" aria-expanded="false"> <div class="reaction-drawer__container"> <button id="reaction-butt-like" name="Like" aria-label="Like" aria-pressed="false" class="crayons-reaction crayons-tooltip__activator relative pt-2 pr-2 pb-1 pl-2" data-category="like"> <span class="crayons-reaction__icon crayons-reaction__icon--inactive p-0"> <img aria_hidden="true" height="32" width="32" src="https://assets.dev.to/assets/sparkle-heart-5f9bee3767e18deb1bb725290cb151c25234768a0e9a2bd39370c382d02920cf.svg" /> </span> <span class="crayons-reaction__count" id="reaction-number-like"><span class="bg-base-40 opacity-25 p-2 inline-block radius-default"></span></span> <span data-testid="tooltip" class="crayons-tooltip__content"> Like </span> </button> <button id="reaction-butt-unicorn" name="Unicorn" aria-label="Unicorn" aria-pressed="false" class="crayons-reaction crayons-tooltip__activator relative pt-2 pr-2 pb-1 pl-2" data-category="unicorn"> <span class="crayons-reaction__icon crayons-reaction__icon--inactive p-0"> <img aria_hidden="true" height="32" width="32" src="https://assets.dev.to/assets/multi-unicorn-b44d6f8c23cdd00964192bedc38af3e82463978aa611b4365bd33a0f1f4f3e97.svg" /> </span> <span class="crayons-reaction__count" id="reaction-number-unicorn"><span class="bg-base-40 opacity-25 p-2 inline-block radius-default"></span></span> <span data-testid="tooltip" class="crayons-tooltip__content"> Unicorn </span> </button> <button id="reaction-butt-exploding_head" name="Exploding Head" aria-label="Exploding Head" aria-pressed="false" class="crayons-reaction crayons-tooltip__activator relative pt-2 pr-2 pb-1 pl-2" data-category="exploding_head"> <span class="crayons-reaction__icon crayons-reaction__icon--inactive p-0"> <img aria_hidden="true" height="32" width="32" src="https://assets.dev.to/assets/exploding-head-daceb38d627e6ae9b730f36a1e390fca556a4289d5a41abb2c35068ad3e2c4b5.svg" /> </span> <span class="crayons-reaction__count" id="reaction-number-exploding_head"><span class="bg-base-40 opacity-25 p-2 inline-block radius-default"></span></span> <span data-testid="tooltip" class="crayons-tooltip__content"> Exploding Head </span> </button> <button id="reaction-butt-raised_hands" name="Raised Hands" aria-label="Raised Hands" aria-pressed="false" class="crayons-reaction crayons-tooltip__activator relative pt-2 pr-2 pb-1 pl-2" data-category="raised_hands"> <span class="crayons-reaction__icon crayons-reaction__icon--inactive p-0"> <img aria_hidden="true" height="32" width="32" src="https://assets.dev.to/assets/raised-hands-74b2099fd66a39f2d7eed9305ee0f4553df0eb7b4f11b01b6b1b499973048fe5.svg" /> </span> <span class="crayons-reaction__count" id="reaction-number-raised_hands"><span class="bg-base-40 opacity-25 p-2 inline-block radius-default"></span></span> <span data-testid="tooltip" class="crayons-tooltip__content"> Raised Hands </span> </button> <button id="reaction-butt-fire" name="Fire" aria-label="Fire" aria-pressed="false" class="crayons-reaction crayons-tooltip__activator relative pt-2 pr-2 pb-1 pl-2" data-category="fire"> <span class="crayons-reaction__icon crayons-reaction__icon--inactive p-0"> <img aria_hidden="true" height="32" width="32" src="https://assets.dev.to/assets/fire-f60e7a582391810302117f987b22a8ef04a2fe0df7e3258a5f49332df1cec71e.svg" /> </span> <span class="crayons-reaction__count" id="reaction-number-fire"><span class="bg-base-40 opacity-25 p-2 inline-block radius-default"></span></span> <span data-testid="tooltip" class="crayons-tooltip__content"> Fire </span> </button> </div> </div> </div> <button id="reaction-butt-comment" aria-label="Jump to Comments" aria-pressed="false" class="crayons-reaction crayons-reaction--comment crayons-tooltip__activator relative" data-category="comment"> <span class="crayons-reaction__icon crayons-reaction__icon--borderless crayons-reaction__icon--inactive"> <svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" role="img" aria-hidden="true" class="crayons-icon"> <path d="M10 3h4a8 8 0 010 16v3.5c-5-2-12-5-12-11.5a8 8 0 018-8zm2 14h2a6 6 0 000-12h-4a6 6 0 00-6 6c0 3.61 2.462 5.966 8 8.48V17z"></path> </svg> </span> <span class="crayons-reaction__count" id="reaction-number-comment" data-count="1"> <span class="bg-base-40 opacity-25 p-2 inline-block radius-default"></span> </span> <span data-testid="tooltip" class="crayons-tooltip__content"> Jump to Comments </span> </button> <button id="reaction-butt-readinglist" aria-label="Add to reading list" aria-pressed="false" class="crayons-reaction crayons-reaction--readinglist crayons-tooltip__activator relative" data-category="readinglist"> <span class="crayons-reaction__icon crayons-reaction__icon--borderless crayons-reaction__icon--inactive"> <svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" role="img" aria-hidden="true" class="crayons-icon"> <path d="M5 2h14a1 1 0 011 1v19.143a.5.5 0 01-.766.424L12 18.03l-7.234 4.536A.5.5 0 014 22.143V3a1 1 0 011-1zm13 2H6v15.432l6-3.761 6 3.761V4z"></path> </svg> </span> <span class="crayons-reaction__count" id="reaction-number-readinglist"><span class="bg-base-40 opacity-25 p-2 inline-block radius-default"></span></span> <span data-testid="tooltip" class="crayons-tooltip__content"> Save </span> </button> <button id="reaction-butt-boost" aria-label="Boost" aria-pressed="false" class="crayons-reaction crayons-reaction--boost crayons-tooltip__activator relative"> <span class="crayons-reaction__icon crayons-reaction__icon--borderless crayons-reaction__icon--inactive"> <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" fill="currentColor" role="img" aria-hidden="true" class="crayons-icon" width="24" height="24"> <path transform="translate(24,0) scale(-1,1)" d="M6 4H21C21.5523 4 22 4.44772 22 5V12H20V6H6V9L1 5L6 1V4ZM18 20H3C2.44772 20 2 19.5523 2 19V12H4V18H18V15L23 19L18 23V20Z"></path> </svg> </span> <span data-testid="tooltip" class="crayons-tooltip__content"> Boost </span> </button> <div class="only-sidebar-menu-item"> <div id="mod-actions-menu-btn-area" class="print-hidden trusted-visible-block align-center"> </div> </div> <div class="align-center m:relative"> <button id="article-show-more-button" aria-controls="article-show-more-dropdown" aria-expanded="false" aria-haspopup="true" class="dropbtn crayons-btn crayons-btn--ghost-dimmed crayons-btn--icon-rounded" aria-label="Share post options"> <svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" role="img" aria-labelledby="akrudxzdkjr2qyx8lzlaxygopfetm1uz" aria-hidden="true" class="crayons-icon dropdown-icon"><title id="akrudxzdkjr2qyx8lzlaxygopfetm1uz">More...</title><path fill-rule="evenodd" clip-rule="evenodd" d="M7 12a2 2 0 11-4 0 2 2 0 014 0zm7 0a2 2 0 11-4 0 2 2 0 014 0zm5 2a2 2 0 100-4 2 2 0 000 4z"></path></svg> </button> <div id="article-show-more-dropdown" class="crayons-dropdown side-bar left-2 right-2 m:right-auto m:left-100 s:left-auto mb-1 m:mb-0 top-unset bottom-100 m:top-0 m:bottom-unset"> <div class="only-mobile-menu-item"> <button class="mod-actions-menu-btn crayons-link crayons-link--block w-100 bg-transparent border-0 fw-bold"> Moderate </button> </div> <div> <button id="copy-post-url-button" class="flex justify-between crayons-link crayons-link--block w-100 bg-transparent border-0" data-postUrl="https://dev.to/fastly/where-is-the-edge-12j2"> <span class="fw-bold">Copy link</span> <svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" id="article-copy-icon" role="img" aria-labelledby="ae9duhvjfzizqzt7eqsaptu9lo0maa90" aria-hidden="true" class="crayons-icon mx-2 shrink-0"><title id="ae9duhvjfzizqzt7eqsaptu9lo0maa90">Copy link</title> <path d="M7 6V3a1 1 0 011-1h12a1 1 0 011 1v14a1 1 0 01-1 1h-3v3c0 .552-.45 1-1.007 1H4.007A1 1 0 013 21l.003-14c0-.552.45-1 1.007-1H7zm2 0h8v10h2V4H9v2zm-2 5v2h6v-2H7zm0 4v2h6v-2H7z"></path> </svg> </button> <div id="article-copy-link-announcer" aria-live="polite" class="crayons-notice crayons-notice--success my-2 p-1" aria-live="polite" hidden>Copied to Clipboard</div> </div> <div class="Desktop-only"> <a target="_blank" class="crayons-link crayons-link--block" rel="noopener" href='https://twitter.com/intent/tweet?text=%22Where%20is%20the%20edge%3F%22%20by%20Sue%20Smith%20%23DEVCommunity%20https%3A%2F%2Fdev.to%2Ffastly%2Fwhere-is-the-edge-12j2'> Share to X </a> <a target="_blank" class="crayons-link crayons-link--block" rel="noopener" href="https://www.linkedin.com/shareArticle?mini=true&url=https%3A%2F%2Fdev.to%2Ffastly%2Fwhere-is-the-edge-12j2&title=Where%20is%20the%20edge%3F&summary=In%20this%20series%20we%E2%80%99re%20learning%20about%20edge%20computing%20for%20the%20web.%20%20%20%20Part%201%3A%20An%20easy%20intro%20to%20edge...&source=DEV%20Community"> Share to LinkedIn </a> <a target="_blank" class="crayons-link crayons-link--block" rel="noopener" href="https://www.facebook.com/sharer.php?u=https%3A%2F%2Fdev.to%2Ffastly%2Fwhere-is-the-edge-12j2"> Share to Facebook </a> <a target="_blank" class="crayons-link crayons-link--block" rel="noopener" href="https://toot.kytta.dev/?text=https%3A%2F%2Fdev.to%2Ffastly%2Fwhere-is-the-edge-12j2"> Share to Mastodon </a> </div> <web-share-wrapper shareurl="https://dev.to/fastly/where-is-the-edge-12j2" sharetitle="Where is the edge?" sharetext="In this series we’re learning about edge computing for the web. Part 1: An easy intro to edge..." template="web-share-button"> </web-share-wrapper> <template id="web-share-button"> <a href="#" class="dropdown-link-row crayons-link crayons-link--block">Share Post via...</a> </template> <a href="/report-abuse" class="crayons-link crayons-link--block">Report Abuse</a> </div> </div> </div> </div> </aside> <main id="main-content" class="crayons-layout__content grid gap-4"> <div class="article-wrapper"> <article class="crayons-card crayons-article mb-4" id="article-show-container" data-article-id="1948695" data-article-slug="where-is-the-edge-12j2" data-author-id="154099" data-author-name="Sue Smith" data-author-username="fastly" data-co-author-ids="" data-path="/fastly/where-is-the-edge-12j2" data-pin-path="/stories/feed/pinned_article" data-pinned-article-id="" data-published="true" data-scheduled="false" lang=en > <header class="crayons-article__header" id="main-title"> <a class="crayons-article__cover" href="https://media2.dev.to/dynamic/image/width=1000,height=420,fit=cover,gravity=auto,format=auto/https%3A%2F%2Fdev-to-uploads.s3.amazonaws.com%2Fuploads%2Farticles%2Fyjmier5gim3pcc8coonc.png"> <img src="https://media2.dev.to/dynamic/image/width=1000,height=420,fit=cover,gravity=auto,format=auto/https%3A%2F%2Fdev-to-uploads.s3.amazonaws.com%2Fuploads%2Farticles%2Fyjmier5gim3pcc8coonc.png" style="aspect-ratio: auto 1000 / 420;" width="1000" height="420" class="crayons-article__cover__image" alt="Cover image for Where is the edge?"> </a> <div class="crayons-article__header__meta"> <div class="flex s:items-start flex-col s:flex-row"> <div id="action-space" class="crayons-article__actions mb-4 s:mb-0 s:order-last"></div> <div class="flex flex-1 mb-5 items-start"> <div class="relative"> <a href="/fastly"><img src="https://media2.dev.to/dynamic/image/width=50,height=50,fit=cover,gravity=auto,format=auto/https%3A%2F%2Fdev-to-uploads.s3.amazonaws.com%2Fuploads%2Forganization%2Fprofile_image%2F2298%2F27608760-4be1-4e12-b054-b8a2748d978d.png" class="radius-default align-middle" width="40" height="40" alt="Fastly profile image"></a> <a href="/suesmith" class="absolute -right-2 -bottom-2 radius-full border border-solid border-2 border-base-inverted inline-flex"> <img class="radius-full align-middle" src="https://media2.dev.to/dynamic/image/width=50,height=50,fit=cover,gravity=auto,format=auto/https%3A%2F%2Fdev-to-uploads.s3.amazonaws.com%2Fuploads%2Fuser%2Fprofile_image%2F154099%2F9d185df0-7f11-45be-a0d9-a24997721513.jpg" width="24" height="24" alt="Sue Smith" /> </a> </div> <div class="pl-3 flex-1"> <a href="/suesmith" class="crayons-link fw-bold">Sue Smith</a> <span class="color-base-60"> for </span><a href="/fastly" class="crayons-link">Fastly</a> <p class="fs-xs color-base-60"> Posted on <time datetime="2024-08-06T13:12:05Z" class="date">Aug 6, 2024</time> • Edited on <time datetime="2024-09-10T14:20:13Z" class="date">Sep 10, 2024</time> </p> </div> </div> </div> <div class="multiple_reactions_engagement"> <span class="reaction_engagement_like hidden"> <img src="https://assets.dev.to/assets/sparkle-heart-5f9bee3767e18deb1bb725290cb151c25234768a0e9a2bd39370c382d02920cf.svg" width="24" height="24" /> <span id="reaction_engagement_like_count"> </span> </span> <span class="reaction_engagement_unicorn hidden"> <img src="https://assets.dev.to/assets/multi-unicorn-b44d6f8c23cdd00964192bedc38af3e82463978aa611b4365bd33a0f1f4f3e97.svg" width="24" height="24" /> <span id="reaction_engagement_unicorn_count"> </span> </span> <span class="reaction_engagement_exploding_head hidden"> <img src="https://assets.dev.to/assets/exploding-head-daceb38d627e6ae9b730f36a1e390fca556a4289d5a41abb2c35068ad3e2c4b5.svg" width="24" height="24" /> <span id="reaction_engagement_exploding_head_count"> </span> </span> <span class="reaction_engagement_raised_hands hidden"> <img src="https://assets.dev.to/assets/raised-hands-74b2099fd66a39f2d7eed9305ee0f4553df0eb7b4f11b01b6b1b499973048fe5.svg" width="24" height="24" /> <span id="reaction_engagement_raised_hands_count"> </span> </span> <span class="reaction_engagement_fire hidden"> <img src="https://assets.dev.to/assets/fire-f60e7a582391810302117f987b22a8ef04a2fe0df7e3258a5f49332df1cec71e.svg" width="24" height="24" /> <span id="reaction_engagement_fire_count"> </span> </span> </div> <h1 class=" fs-3xl m:fs-4xl l:fs-5xl fw-bold s:fw-heavy lh-tight mb-2 short"> Where is the edge? </h1> <div class="spec__tags flex flex-wrap"> <a class="crayons-tag " style=" --tag-bg: rgba(86, 39, 101, 0.10); --tag-prefix: #562765; --tag-bg-hover: rgba(86, 39, 101, 0.10); --tag-prefix-hover: #562765; " href="/t/webdev"><span class="crayons-tag__prefix">#</span>webdev</a> <a class="crayons-tag " style=" --tag-bg: rgba(255, 102, 237, 0.10); --tag-prefix: #ff66ed; --tag-bg-hover: rgba(255, 102, 237, 0.10); --tag-prefix-hover: #ff66ed; " href="/t/learning"><span class="crayons-tag__prefix">#</span>learning</a> <a class="crayons-tag " style=" --tag-bg: rgba(28, 28, 28, 0.10); --tag-prefix: #1C1C1C; --tag-bg-hover: rgba(28, 28, 28, 0.10); --tag-prefix-hover: #1C1C1C; " href="/t/serverless"><span class="crayons-tag__prefix">#</span>serverless</a> <a class="crayons-tag " style=" --tag-bg: rgba(255, 153, 0, 0.10); --tag-prefix: #FF9900; --tag-bg-hover: rgba(255, 153, 0, 0.10); --tag-prefix-hover: #FF9900; " href="/t/cloud"><span class="crayons-tag__prefix">#</span>cloud</a> </div> </div> </header> <div class="crayons-article__main "> <div class="crayons-article__body text-styles spec__body" data-article-id="1948695" id="article-body"> <p>In this series we’re learning about edge computing for the web. </p> <blockquote> <p><a href="https://dev.to/fastly/an-easy-intro-to-edge-computing-3ced">Part 1: An easy intro to edge computing</a></p> </blockquote> <p><strong>This time we're asking where this edge is, and what it's the edge of?</strong> 🔍</p> <p>The short answer is that it’s somewhere between the user and wherever a site or application is hosted. It might be a CDN server near the user's location. It might be an IoT device in a house or workplace. It's the edge of the network the user is connecting to. Read on for the longer answer!</p> <h2> <a name="client-and-server" href="#client-and-server"> </a> Client and server </h2> <p>In the olden days you could make a website just by putting some content in HTML files on a web server. You could then share the location of the server with people and they could open the site in their web browser. Typically you would <a href="https://dev.to/fastly/you-should-have-your-own-domain-23mp">use a domain</a> to point at the server location, and include links to the site in other web pages so that people could click to visit.</p> <p>This way of making websites still works! You can slap the content below in a file with an <code>.html</code> extension, put it on a web server, and visit it in a browser. That’s a website.<br> </p> <div class="highlight js-code-highlight"> <pre class="highlight html"><code><span class="cp"><!DOCTYPE html></span> <span class="nt"><html></span> <span class="nt"><head></span> <span class="nt"><title></span>This is a web page!<span class="nt"></title></span> <span class="nt"></head></span> <span class="nt"><body></span> <span class="nt"><p></span>This is the content in a web page!<span class="nt"></p></span> <span class="nt"></body></span> <span class="nt"></html></span> </code></pre> <div class="highlight__panel js-actions-panel"> <div class="highlight__panel-action js-fullscreen-code-action"> <svg xmlns="http://www.w3.org/2000/svg" width="20px" height="20px" viewbox="0 0 24 24" class="highlight-action crayons-icon highlight-action--fullscreen-on"><title>Enter fullscreen mode</title> <path d="M16 3h6v6h-2V5h-4V3zM2 3h6v2H4v4H2V3zm18 16v-4h2v6h-6v-2h4zM4 19h4v2H2v-6h2v4z"></path> </svg> <svg xmlns="http://www.w3.org/2000/svg" width="20px" height="20px" viewbox="0 0 24 24" class="highlight-action crayons-icon highlight-action--fullscreen-off"><title>Exit fullscreen mode</title> <path d="M18 7h4v2h-6V3h2v4zM8 9H2V7h4V3h2v6zm10 8v4h-2v-6h6v2h-4zM8 15v6H6v-4H2v-2h6z"></path> </svg> </div> </div> </div> <p>The <strong>client</strong> was the user’s browser on their device, and the <strong>server</strong> was the machine where the file was stored. The server was connected to the network known as the internet, and people could request the content hosted there by browsing the web and navigating to the site address. Client / Server architecture was the model we used to build and reason about websites for a long time.</p> <p>As the web became a bigger part of human life, the technologies became more complex. <strong><em>But the edge is part of this same network – it just refers to places on the network that are closer to the user than the server hosting the content.</em></strong></p> <p>Let’s use an example. I’m in Glasgow, and when I visit my portfolio site that I built on Glitch and have my <a href="https://dev.to/fastly/point-a-domain-at-your-site-with-fastly-1khm">domain routing traffic through Fastly CDN</a>, this is what happens:</p> <ul> <li>My request goes through my nearest <a href="https://www.fastly.com/documentation/guides/concepts/pop/" target="_blank" rel="noopener noreferrer">PoP</a> (Point of Presence) on the Fastly network of servers, which will be in the UK. </li> <li>If the Fastly server has the site content stored in cache, I get a response from there and that’s that.</li> <li>If it doesn’t have the content in cache, the Fastly server makes the request to where my Glitch site is hosted (on an AWS service in America) and returns the response to me.</li> </ul> <p><a href="https://media2.dev.to/cdn-cgi/image/width=800%2Cheight=%2Cfit=scale-down%2Cgravity=auto%2Cformat=auto/https%3A%2F%2Fdev-to-uploads.s3.amazonaws.com%2Fuploads%2Farticles%2Fwwo7b6qya6ymjfppjn5b.png" class="article-body-image-wrapper"><img src="https://media2.dev.to/cdn-cgi/image/width=800%2Cheight=%2Cfit=scale-down%2Cgravity=auto%2Cformat=auto/https%3A%2F%2Fdev-to-uploads.s3.amazonaws.com%2Fuploads%2Farticles%2Fwwo7b6qya6ymjfppjn5b.png" alt="Client Edge Server" loading="lazy" width="800" height="298"></a></p> <p>📱 The <strong>client</strong> is my browser.<br> 🪩 The <strong>edge</strong> is the Fastly PoP near me.<br> 🏭 The <strong>server</strong> (or <em>origin host</em>) is the Glitch site in an S3 bucket.</p> <p>When we refer to the edge, we mean the <em>network edge</em>, a location on the network that's nearer the client than the origin server. If you’re using Fastly, the edge is any server on the Fastly network that’s involved in delivering your site.</p> <h2> <a name="static-and-dynamic" href="#static-and-dynamic"> </a> Static and dynamic </h2> <p>Another shift that happened on the web was from static to dynamic content. In the beginning we put our content in files and the visitor basically received those <em>static assets</em> and viewed them on their device. As websites started to incorporate more data, web pages were constructed <em>dynamically</em>. If someone visited a site, the server built up-to-date data from the database into a page and returned that to the user. And so websites became more like software applications, written in coding languages that ran on web servers.</p> <h2> <a name="frameworks-and-apis" href="#frameworks-and-apis"> </a> Frameworks and APIs </h2> <p>These web applications became more and more complex, and we started to build them using modular components – dependencies someone else built and that you plugged into your project like lego blocks. APIs became a standard way to access data sources between applications. Developers started using frameworks to generate the HTML in website user interfaces, which also included interactivity coded in JavaScript that ran in the browser. </p> <p>We called the server part <em>backend</em> development, and the client part was <em>frontend</em> development. The selection of technologies used to build a website was its <em>stack</em>.</p> <h2> <a name="serverless-and-the-cloud" href="#serverless-and-the-cloud"> </a> Serverless and the cloud </h2> <p>As web audiences became more globally distributed, the need arose for sites to <em>scale</em>, to perform reliably for large numbers of people accessing them from many different places around the world. The cloud gave us the ability to access server resources on demand, and serverless platforms allowed us to build applications that could scale up and down using infrastructure also managed by cloud services.</p> <p>The complexity in building and scaling websites created a need for process around what happened when you <em>deployed</em> an application, to put it on the network in a way that would help it perform reliably.</p> <h2> <a name="on-the-edge" href="#on-the-edge"> </a> On the edge </h2> <p><a href="https://media2.dev.to/cdn-cgi/image/width=800%2Cheight=%2Cfit=scale-down%2Cgravity=auto%2Cformat=auto/https%3A%2F%2Fdev-to-uploads.s3.amazonaws.com%2Fuploads%2Farticles%2Ftjbpu0ob2b4ud0lcq4z8.png" class="article-body-image-wrapper"><img src="https://media2.dev.to/cdn-cgi/image/width=800%2Cheight=%2Cfit=scale-down%2Cgravity=auto%2Cformat=auto/https%3A%2F%2Fdev-to-uploads.s3.amazonaws.com%2Fuploads%2Farticles%2Ftjbpu0ob2b4ud0lcq4z8.png" alt="Origin and edge site side by side" loading="lazy" width="800" height="412"></a></p> <p><em>🎏 Sneak preview of the Glitch app we'll be using to learn coding for the edge.</em></p> <p><strong>You can build serverless applications that run at the network edge.</strong> When you code an edge application for the web, it will run between your client and server code – between what happens in the user's browser and what happens on your host server. This means that your edge code can manipulate the request and response, changing the UX with logic that runs close to the user. </p> <p>Later in this series we'll learn how to use edge computing to customize the user experience with geolocation information.</p> <p><strong>Next up: <a href="https://dev.to/fastly/build-your-own-edge-computing-app-3cp2">Build your own edge computing app</a></strong></p> </div> <div class="js-billboard-container body-billboard-container" data-async-url="/fastly/where-is-the-edge-12j2/bmar11/post_body_bottom"></div> </div> <section id="comments" data-follow-button-container="true" data-updated-at="2025-03-27 13:49:14 UTC" class="text-padding mb-4 border-t-1 border-0 border-solid border-base-10"> <header class="relative flex justify-between items-center mb-6"> <div class="flex items-center"> <h2 class="crayons-subtitle-1"> Top comments <span class="js-comments-count" data-comments-count="1">(1)</span> </h2> </div> <div id="comment-subscription" class="print-hidden"> <div class="crayons-btn-group"> <span class="crayons-btn crayons-btn--outlined">Subscribe</span> </div> </div> </header> <div id="billboard_delay_trigger"></div> <div id="comments-container" data-testid="comments-container" data-commentable-id="1948695" data-commentable-type="Article" data-has-recent-comment-activity="false"> <div id="response-templates-data" class="hidden"></div> <form class="comment-form print-hidden" id="new_comment" action="/comments" accept-charset="UTF-8" method="post"><input name="utf8" type="hidden" value="✓" autocomplete="off" /> <input type="hidden" name="authenticity_token" value="NOTHING" id="new_comment_authenticity_token"> <input value="1948695" autocomplete="off" type="hidden" name="comment[commentable_id]" id="comment_commentable_id" /> <input value="Article" autocomplete="off" type="hidden" name="comment[commentable_type]" id="comment_commentable_type" /> <span class="crayons-avatar m:crayons-avatar--l mr-2 shrink-0"> <img src="https://media2.dev.to/dynamic/image/width=256,height=,fit=scale-down,gravity=auto,format=auto/https%3A%2F%2Fdev-to-uploads.s3.amazonaws.com%2Fuploads%2Farticles%2F8j7kvp660rqzt99zui8e.png" width="32" height="32" alt="pic" class="crayons-avatar__image overflow-hidden" id="comment-primary-user-profile--avatar" loading="lazy" /> </span> <div class="comment-form__inner"> <div class="comment-form__field" data-tracking-name="comment_form_textfield"> <textarea placeholder="Add to the discussion" onfocus="handleFocus(event)" onkeyup="handleKeyUp(event)" onkeydown="handleKeyDown(event)" oninput="handleChange(event)" id="text-area" required="required" class="crayons-textfield comment-textarea crayons-textfield--ghost" aria-label="Add a comment to the discussion" name="comment[body_markdown]"> </textarea> </div> <div class="response-templates-container crayons-card crayons-card--secondary p-4 mb-4 comment-form__templates fs-base hidden"> <header class="mb-3"> <button type="button" class="crayons-btn personal-template-button active" data-target-type="personal" data-form-id="new_comment">Personal</button> <button type="button" class="crayons-btn moderator-template-button hidden" data-target-type="moderator" data-form-id="new_comment">Trusted User</button> </header> <div class="personal-responses-container"> </div> <div class="moderator-responses-container hidden"> </div> <a target="_blank" rel="noopener nofollow" href="/settings/response-templates"> Create template </a> <p>Templates let you quickly answer FAQs or store snippets for re-use.</p> </div> <div class="comment-form__preview text-styles text-styles--secondary" id="preview-div"></div> <div class="comment-form__buttons mb-4"> <button type="submit" class="crayons-btn mr-2 js-btn-enable" onclick="validateField(event)" data-tracking-name="comment_submit_button" disabled>Submit</button> <button type="button" class="preview-toggle crayons-btn crayons-btn--secondary comment-action-preview js-btn-enable mr-2" data-tracking-name="comment_preview_button" disabled>Preview</button> <a href="/404.html" class="dismiss-edit-comment crayons-btn crayons-btn--ghost js-btn-dismiss hidden">Dismiss</a> </div> </div> <div class="code-of-conduct" id="toggle-code-of-conduct-checkbox"></div> </form> <div class="comments" id="comment-trees-container"> <details class="comment-wrapper js-comment-wrapper comment-wrapper--deep-0 root " open> <summary aria-label="Toggle this comment (and replies)" data-tracking-name="expand_comment_toggle"> <span class="m:mx-1 inline-block align-middle"> <svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" role="img" aria-labelledby="apenth4osnwue3ib5ribgs9fn8y9gx0y" class="crayons-icon expanded"><title id="apenth4osnwue3ib5ribgs9fn8y9gx0y">Collapse</title> <path d="M12 10.677L8 6.935 9 6l3 2.807L15 6l1 .935-4 3.742zm0 4.517L9 18l-1-.935 4-3.742 4 3.742-1 .934-3-2.805z"></path> </svg> <svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" role="img" aria-labelledby="ad6kyyl7qma4o23lz22zpc6yyhq224th" class="crayons-icon collapsed"><title id="ad6kyyl7qma4o23lz22zpc6yyhq224th">Expand</title> <path d="M12 18l-4-3.771 1-.943 3 2.829 3-2.829 1 .943L12 18zm0-10.115l-3 2.829-1-.943L12 6l4 3.771-1 .942-3-2.828z"></path> </svg> </span> <span class="js-collapse-comment-content inline-block align-middle"></span> </summary> <div id="comment-node-1216972" class=" comment single-comment-node root comment--deep-0 " data-comment-id="1216972" data-path="/fastly/where-is-the-edge-12j2/comments/2h66g" data-comment-author-id="362553" data-content-user-id="362553"> <a name="comment-2h66g" style="position: absolute; top: -8px;"> </a> <div class="comment__inner"> <a href="https://dev.to/mindchatter" class="shrink-0 crayons-avatar m:crayons-avatar--l mt-4 m:mt-3"> <img class="crayons-avatar__image" width="32" height="32" src="https://media2.dev.to/dynamic/image/width=50,height=50,fit=cover,gravity=auto,format=auto/https%3A%2F%2Fdev-to-uploads.s3.amazonaws.com%2Fuploads%2Fuser%2Fprofile_image%2F362553%2F37c74277-36d5-4c93-8e03-da51601c4d29.jpeg" alt="mindchatter profile image" loading="lazy" /> </a> <div class="inner-comment comment__details"> <div class="comment__content crayons-card"> <div class="comment__header"> <a href="https://dev.to/mindchatter" class="crayons-link crayons-link--secondary flex items-center fw-medium m:hidden"> <span class="js-comment-username">Tasha</span> </a> <div class="profile-preview-card relative mb-4 s:mb-0 fw-medium hidden m:block"> <button id="comment-profile-preview-trigger-1216972" aria-controls="comment-profile-preview-content-1216972" class="profile-preview-card__trigger p-1 -my-1 -ml-1 crayons-btn crayons-btn--ghost" aria-label="Tasha profile details"> Tasha </button> <div id="comment-profile-preview-content-1216972" class="profile-preview-card__content p-4 pt-0 branded-7 crayons-dropdown" style="--card-color: #000; border-top-color: var(--card-color);" data-testid="profile-preview-card" data-repositioning-dropdown="true"> <div class="gap-4 grid"> <div class="-mt-4"> <a href="/mindchatter" class="flex"> <span class="crayons-avatar crayons-avatar--xl mr-2 shrink-0"> <img src="https://media2.dev.to/dynamic/image/width=90,height=90,fit=cover,gravity=auto,format=auto/https%3A%2F%2Fdev-to-uploads.s3.amazonaws.com%2Fuploads%2Fuser%2Fprofile_image%2F362553%2F37c74277-36d5-4c93-8e03-da51601c4d29.jpeg" class="crayons-avatar__image" alt="" loading="lazy" /> </span> <span class="crayons-link crayons-subtitle-2 mt-5"> Tasha </span> </a> </div> <div class="print-hidden"> <button name="button" type="button" data-info="{"className":"User","style":"","id":362553,"name":"Tasha"}" class="crayons-btn follow-action-button whitespace-nowrap w-100 follow-user" aria-label="Follow user: Tasha" aria-pressed="false">Follow</button> </div> <div class="color-base-70"> Community Manager </div> <div class="user-metadata-details"> <ul class="user-metadata-details-inner"> <li> <div class="key"> Location </div> <div class="value"> Portland, OR </div> </li> <li> <div class="key"> Work </div> <div class="value"> daily.co </div> </li> <li> <div class="key"> Joined </div> <div class="value"> <time datetime="2020-04-07T18:15:24Z" class="date">Apr 7, 2020</time> </div> </li> </ul> </div> </div> </div> </div> <span class="color-base-30 px-2 m:pl-0" role="presentation">•</span> <a href="https://dev.to/fastly/where-is-the-edge-12j2#comment-2h66g" class="comment-date crayons-link crayons-link--secondary fs-s"> <time datetime="2024-08-07T20:35:53Z" class=date-short-year> Aug 7 '24 </time> </a> <div class="comment__dropdown" data-tracking-name="comment_dropdown"> <button id="comment-dropdown-trigger-1216972" aria-controls="comment-dropdown-1216972" aria-expanded="false" class="dropbtn comment__dropdown-trigger crayons-btn crayons-btn--s crayons-btn--ghost crayons-btn--icon " aria-label="Toggle dropdown menu" aria-haspopup="true"> <svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" role="img" aria-labelledby="a9p6j8f07unei16f13z8txgx6fvyrwbf" class="crayons-icon pointer-events-none"><title id="a9p6j8f07unei16f13z8txgx6fvyrwbf">Dropdown menu</title> <path fill-rule="evenodd" clip-rule="evenodd" d="M8.25 12a1.5 1.5 0 11-3 0 1.5 1.5 0 013 0zm5.25 0a1.5 1.5 0 11-3 0 1.5 1.5 0 013 0zm3.75 1.5a1.5 1.5 0 100-3 1.5 1.5 0 000 3z"></path> </svg> </button> <div id="comment-dropdown-1216972" class="crayons-dropdown right-1 s:right-0 s:left-auto fs-base dropdown"> <ul class="m-0"> <li><a href="https://dev.to/fastly/where-is-the-edge-12j2#comment-2h66g" class="crayons-link crayons-link--block permalink-copybtn" aria-label="Copy link to Tasha's comment" data-no-instant>Copy link</a></li> <li class="comment-actions hidden" data-user-id="362553" data-action="settings-button" data-path="https://dev.to/mindchatter/comment/2h66g/settings" aria-label="Go to Tasha's comment settings"></li> <li class="comment-actions hidden" data-action="hide-button" data-commentable-user-id="154099" data-user-id="362553"> <button class="flex justify-between crayons-link crayons-link--block w-100 bg-transparent border-0 hide-comment" data-hide-type="hide" data-comment-id="1216972" data-comment-url="https://dev.to/mindchatter/comment/2h66g" aria-label="Hide Tasha's comment"> Hide </button> </li> <li class="mod-actions hidden mod-actions-comment-button" data-path="https://dev.to/mindchatter/comment/2h66g/mod" aria-label="Moderate Tasha's comment"></li> <li class="report-abuse-link-wrapper" data-path="/report-abuse?url=https://dev.to/mindchatter/comment/2h66g" aria-label="Report Tasha's comment as abusive or violating our code of conduct and/or terms and conditions"></li> <li class="current-user-actions"></li> </ul> </div> </div> </div> <div class=" comment__body text-styles text-styles--secondary body "> <p>Thanks for explaining edge computing in simple terms! I'm looking forward to reading the rest of the series.</p> </div> </div> <script> </script> <footer class="comment__footer print-hidden"> <button class="crayons-tooltip__activator crayons-btn crayons-btn--ghost crayons-btn--icon-left crayons-btn--s mr-1 reaction-like inline-flex reaction-button" id="button-for-comment-1216972" data-comment-id="1216972" aria-label="like" data-tracking-name="comment_heart_button"> <svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" role="img" aria-labelledby="afbo130fviamxclcnkkmq4t14che2i9o" class="crayons-icon reaction-icon not-reacted"><title id="afbo130fviamxclcnkkmq4t14che2i9o">Like comment: </title><path d="M18.884 12.595l.01.011L12 19.5l-6.894-6.894.01-.01A4.875 4.875 0 0112 5.73a4.875 4.875 0 016.884 6.865zM6.431 7.037a3.375 3.375 0 000 4.773L12 17.38l5.569-5.569a3.375 3.375 0 10-4.773-4.773L9.613 10.22l-1.06-1.062 2.371-2.372a3.375 3.375 0 00-4.492.25v.001z"></path></svg> <svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" role="img" aria-labelledby="aspkbuzwb4wam4vik90stktri8bj0leo" class="crayons-icon crayons-icon reaction-icon--like reaction-icon reacted"><title id="aspkbuzwb4wam4vik90stktri8bj0leo">Like comment: </title> <path d="M5.116 12.595a4.875 4.875 0 015.56-7.68h-.002L7.493 8.098l1.06 1.061 3.181-3.182a4.875 4.875 0 016.895 6.894L12 19.5l-6.894-6.894.01-.01z"></path> </svg> <span class="reactions-count">2</span><span class="reactions-label hidden m:inline-block"> likes</span> <span data-testid="tooltip" class="crayons-tooltip__content"> Like </span> </button> <a class="actions crayons-btn crayons-btn--ghost crayons-btn--s crayons-btn--icon-left toggle-reply-form mr-1 inline-flex" href="#/fastly/where-is-the-edge-12j2/comments/new/2h66g" data-comment-id="1216972" data-path="/fastly/where-is-the-edge-12j2/comments/2h66g" data-tracking-name="comment_reply_button" data-testid="reply-button-1216972" rel="nofollow"> <svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" role="img" aria-labelledby="apgc76oks0zxgmn2di1tth45wefuxdx4" class="crayons-icon reaction-icon not-reacted"><title id="apgc76oks0zxgmn2di1tth45wefuxdx4">Comment button</title><path d="M10.5 5h3a6 6 0 110 12v2.625c-3.75-1.5-9-3.75-9-8.625a6 6 0 016-6zM12 15.5h1.5a4.501 4.501 0 001.722-8.657A4.5 4.5 0 0013.5 6.5h-3A4.5 4.5 0 006 11c0 2.707 1.846 4.475 6 6.36V15.5z"></path></svg> <span class="hidden m:inline-block">Reply</span> </a> </footer> </div> </div> </div> </details> </div> </div> <div class="align-center"> <nav class="fs-s align-center block" aria-label="Conduct controls"> <a href="/code-of-conduct" class="crayons-link crayons-link--secondary">Code of Conduct</a> <span class="opacity-25 px-2" role="presentation">•</span> <a href="/report-abuse" class="crayons-link crayons-link--secondary">Report abuse</a> </nav> </div> </section> <div id="hide-comments-modal" class="hidden"> <form id="hide-comments-modal__form" class="hide-comments-modal__form" data-type="json" action="/comments/hide" accept-charset="UTF-8" data-remote="true" method="post"><input name="utf8" type="hidden" value="✓" autocomplete="off" /><input type="hidden" name="_method" value="patch" autocomplete="off" /><input type="hidden" name="authenticity_token" value="8TkGctg1p6kms1gOtmFhFs7aAk6TSzGoRZdwYxzDNGx5TyWIg9j2UkXOobvuoJ1HSCg0tUD-iyiIZdu3Au7mPw" autocomplete="off" /> <div class="hide-comments-modal__content"> <p class="pb-2"> Are you sure you want to hide this comment? It will become hidden in your post, but will still be visible via the comment's <a id="hide-comments-modal__comment-permalink" href="#">permalink</a>. </p> <label class="crayons-field crayons-field--checkbox my-2"> <input name="hide_children" type="hidden" value="0" autocomplete="off" /><input class="hide_children crayons-checkbox" type="checkbox" value="1" name="hide_children" id="hide_children" /> <p class="crayons-field__label">Hide child comments as well</p> </label> <p class="pb-4 pt-2"> <button type="submit" class="crayons-btn"> Confirm </button> </p> </div> </form> <p class="fs-s color-base-60">For further actions, you may consider blocking this person and/or <a id="hide-comments-modal__report-link" href="/report-abuse">reporting abuse</a></p> </div> </article> <div class="pb-4 crayons-layout__comments-billboard"> <div class="js-billboard-container pb-4 crayons-layout__comments-billboard" data-async-url="/fastly/where-is-the-edge-12j2/bmar11/post_comments"></div> </div> <div id="aync-bottom-content" class="pb-4"></div> </div> </main> <aside class="crayons-layout__sidebar-right" aria-label="Author details"> <div class="crayons-article-sticky grid gap-4 pb-4 break-word" id="article-show-primary-sticky-nav"> <div class="crayons-card crayons-card--secondary branded-7 p-4 pt-0 gap-4 grid" style="border-top-color: #e02100;"> <div class="-mt-4"> <a href="/fastly" class="flex"> <span class="crayons-logo crayons-logo--xl mr-2 shrink-0"> <img src="https://media2.dev.to/dynamic/image/width=90,height=90,fit=cover,gravity=auto,format=auto/https%3A%2F%2Fdev-to-uploads.s3.amazonaws.com%2Fuploads%2Forganization%2Fprofile_image%2F2298%2F27608760-4be1-4e12-b054-b8a2748d978d.png" class="crayons-logo__image" alt="" loading="lazy" /> </span> <span class="crayons-link crayons-subtitle-2 mt-5"> Fastly </span> </a> </div> <div class="print-hidden"> <button name="button" type="button" data-info="{"className":"Organization","style":"","id":2298,"name":"Fastly"}" class="crayons-btn follow-action-button whitespace-nowrap w-100 " aria-label="Follow organization: Fastly" aria-pressed="false">Follow</button> </div> </div> <div class="crayons-card crayons-card--secondary"> <header class="crayons-card__header"> <h3 class="crayons-subtitle-2"> More from <a href="/fastly">Fastly</a> </h3> </header> <div> <a class="crayons-link crayons-link--contentful" href="/fastly/enhance-an-11ty-site-at-the-edge-5cgc"> Enhance an 11ty site at the edge <div class="crayons-link__secondary -ml-1"> <span class="mr-1"><span class="opacity-50">#</span>webdev</span> <span class="mr-1"><span class="opacity-50">#</span>serverless</span> <span class="mr-1"><span class="opacity-50">#</span>11ty</span> <span class="mr-1"><span class="opacity-50">#</span>javascript</span> </div> </a> <a class="crayons-link crayons-link--contentful" href="/fastly/announcing-the-pubsub-compute-app-35ki"> Announcing the Pub/Sub Compute app <div class="crayons-link__secondary -ml-1"> <span class="mr-1"><span class="opacity-50">#</span>pubsub</span> <span class="mr-1"><span class="opacity-50">#</span>serverless</span> <span class="mr-1"><span class="opacity-50">#</span>rust</span> <span class="mr-1"><span class="opacity-50">#</span>opensource</span> </div> </a> <a class="crayons-link crayons-link--contentful" href="/fastly/go-beyond-the-basics-connecting-compute-to-object-storage-with-the-official-s3-clients-4l9p"> Go Beyond the Basics: Connecting Compute to Object Storage with the Official S3 Clients <div class="crayons-link__secondary -ml-1"> <span class="mr-1"><span class="opacity-50">#</span>fastly</span> <span class="mr-1"><span class="opacity-50">#</span>serverless</span> <span class="mr-1"><span class="opacity-50">#</span>webassembly</span> <span class="mr-1"><span class="opacity-50">#</span>s3</span> </div> </a> </div> </div> </div> <div class="crayons-article-sticky grid gap-4 break-word js-billboard-container" data-async-url="/fastly/where-is-the-edge-12j2/bmar11/post_sidebar"></div> </aside> </div> <div class="mod-actions-menu print-hidden"></div> <div data-testid="unpublish-post-modal-container" class="unpublish-post-modal-container hidden"></div> <div class="fullscreen-code js-fullscreen-code"></div> <script src="https://assets.dev.to/assets/followButtons-f2455d1f50a862b83fa006b1953e3a1644598781243cae25d3e75b13c04184fd.js" defer="defer"></script> <script src="https://assets.dev.to/assets/billboard-818c196f17931002334ea0a9f5a2abea9e2afb2d59259a9b9102ffb07206df72.js" defer="defer"></script> <script src="https://assets.dev.to/assets/localizeArticleDates-70147c5c6bfe350b42e020ebb2a3dd37419d83978982b5a67b6389119bf162ac.js" defer="defer"></script> <script src="https://assets.dev.to/assets/articleReactions-79a44d82fb34a91c3987c24cfd3bcf2b0d38a02730b69ae6da297387d185f015.js" defer="defer"></script> <script> function activateRunkitTags() { if (!areAnyRunkitTagsPresent()) return var checkRunkit = setInterval(function() { try { dynamicallyLoadRunkitLibrary() if (typeof(RunKit) === 'undefined') { return } replaceTagContentsWithRunkitWidget() clearInterval(checkRunkit); } catch(e) { console.error(e); clearInterval(checkRunkit); } }, 200); } function isRunkitTagAlreadyActive(runkitTag) { return runkitTag.querySelector("iframe") !== null; }; function areAnyRunkitTagsPresent() { var presentRunkitTags = document.getElementsByClassName("runkit-element"); return presentRunkitTags.length > 0 } function replaceTagContentsWithRunkitWidget() { var targets = document.getElementsByClassName("runkit-element"); for (var i = 0; i < targets.length; i++) { if (isRunkitTagAlreadyActive(targets[i])) { continue; } var wrapperContent = targets[i].textContent; if (/^(<iframe src)/.test(wrapperContent) === false) { if (targets[i].children.length > 0) { var preamble = targets[i].children[0].textContent; var content = targets[i].children[1].textContent; targets[i].innerHTML = ""; var notebook = RunKit.createNotebook({ element: targets[i], source: content, preamble: preamble }); } } } }; function dynamicallyLoadRunkitLibrary() { if (typeof(dynamicallyLoadScript) === "undefined") return dynamicallyLoadScript("//embed.runkit.com") } activateRunkitTags(); </script> <div class="js-billboard-container pb-4 crayons-layout__comments-billboard" data-async-url="/fastly/where-is-the-edge-12j2/bmar11/post_fixed_bottom"></div> <div id="runtime-banner-container"></div> </div> </div> <footer id="footer" class="crayons-footer print-hidden"> <div id="footer-container" class="crayons-footer__container"> <style> .long-bb-body { max-height: calc(100vh - 200px); overflow: hidden; } .long-bb-bottom { height: 180px; background: linear-gradient(to top, var(--card-bg), transparent); margin-top: -180px; position:relative; z-index: 5; } </style> <div style="" data-display-unit data-id="146443" data-category-click="click" data-category-impression="impression" data-context-type="home" data-special="nothing" data-article-id="1527134" data-type-of="in_house"> <p style="font-weight: bold;margin-bottom: 10px"> Thank you to our Diamond Sponsor <a href="https://neon.tech/?bb=146443">Neon</a> for supporting our community. </p> </div> <p class="fs-s crayons-footer__description"> <a class="c-link c-link--branded fw-medium" aria-label="DEV Community Home" href="/">DEV Community</a> — A constructive and inclusive social network for software developers. With you every step of your journey. </p> <ul class="footer__nav-links flex gap-2 justify-center flex-wrap fs-s p-0" style="" /> <li class="footer__nav-link flex items-center"> <a href="/"> Home </a> <span class="dot ml-2"></span> </li> <li class="footer__nav-link flex items-center"> <a href="/++"> DEV++ </a> <span class="dot ml-2"></span> </li> <li class="footer__nav-link flex items-center"> <a href="/pod"> Podcasts </a> <span class="dot ml-2"></span> </li> <li class="footer__nav-link flex items-center"> <a href="/videos"> Videos </a> <span class="dot ml-2"></span> </li> <li class="footer__nav-link flex items-center"> <a href="/tags"> Tags </a> <span class="dot ml-2"></span> </li> <li class="footer__nav-link flex items-center"> <a href="/help"> DEV Help </a> <span class="dot ml-2"></span> </li> <li class="footer__nav-link flex items-center"> <a href="https://shop.forem.com/"> Forem Shop </a> <span class="dot ml-2"></span> </li> <li class="footer__nav-link flex items-center"> <a href="/advertise"> Advertise on DEV </a> <span class="dot ml-2"></span> </li> <li class="footer__nav-link flex items-center"> <a href="/challenges"> DEV Challenges </a> <span class="dot ml-2"></span> </li> <li class="footer__nav-link flex items-center"> <a href="/showcase"> DEV Showcase </a> <span class="dot ml-2"></span> </li> <li class="footer__nav-link flex items-center"> <a href="/about"> About </a> <span class="dot ml-2"></span> </li> <li class="footer__nav-link flex items-center"> <a href="/contact"> Contact </a> <span class="dot ml-2"></span> </li> <li class="footer__nav-link flex items-center"> <a href="/free-postgres-database-tier"> Free Postgres Database </a> <span class="dot ml-2"></span> </li> <li class="footer__nav-link flex items-center"> <a href="/software-comparisons"> Software comparisons </a> <span class="dot ml-2"></span> </li> </ul> <ul class="footer__nav-links flex gap-2 justify-center flex-wrap fs-s p-0" style="" /> <li class="footer__nav-link flex items-center"> <a href="/code-of-conduct"> Code of Conduct </a> <span class="dot ml-2"></span> </li> <li class="footer__nav-link flex items-center"> <a href="/privacy"> Privacy Policy </a> <span class="dot ml-2"></span> </li> <li class="footer__nav-link flex items-center"> <a href="/terms"> Terms of use </a> <span class="dot ml-2"></span> </li> </ul> <div class="fs-s"> <p>Built on <a class="c-link c-link--branded" target="_blank" rel="noopener" href="https://www.forem.com">Forem</a> — the <a target="_blank" rel="noopener" class="c-link c-link--branded" href="https://dev.to/t/opensource">open source</a> software that powers <a target="_blank" rel="noopener" class="c-link c-link--branded" href="https://dev.to">DEV</a> and other inclusive communities.</p> <p>Made with love and <a target="_blank" rel="noopener" class="c-link c-link--branded" href="https://dev.to/t/rails">Ruby on Rails</a>. DEV Community <span title="copyright">©</span> 2016 - 2025.</p> </div> </div> </footer> <div id="snack-zone"></div> <div id="global-signup-modal" class="authentication-modal hidden"> <div class="authentication-modal__container"> <figure class="authentication-modal__image-container"> <img class="authentication-modal__image" src="https://media2.dev.to/dynamic/image/width=190,height=,fit=scale-down,gravity=auto,format=auto/https%3A%2F%2Fdev-to-uploads.s3.amazonaws.com%2Fuploads%2Farticles%2F8j7kvp660rqzt99zui8e.png" alt="DEV Community" loading="lazy" /> </figure> <div class="authentication-modal__content"> <p class="authentication-modal__description"> We're a place where coders share, stay up-to-date and grow their careers. </p> </div> <div class="authentication-modal__actions"> <a href="/enter" class="crayons-btn" aria-label="Log in" data-no-instant> Log in </a> <a href="/enter?state=new-user" class="crayons-btn crayons-btn--ghost-brand js-global-signup-modal__create-account" aria-label="Create new account" data-no-instant> Create account </a> </div> </div> </div> <script src="https://assets.dev.to/assets/signupModalShortcuts-0b25469b985100a01e94cbd7fccaf7f0a4d776e129aac65c766aa32cb28ab29a.js" defer="defer"></script> <div id="cookie-consent"></div> <div id="i18n-translations" data-translations="{"en":{"core":{"add_comment":"Add comment","beta":"beta","comment":"Comment","copy_link":"Copy link","edit_profile":"Edit profile","follow":"Follow","follow_back":"Follow back","following":"Following","like":"Like","loading":"loading...","reaction":"Reaction","report_abuse":"Report abuse","search":"Search","success_settings":"Successfully updated settings.","counted_organization":{"one":"%{count} organization","other":"%{count} organizations"},"counted_user":{"one":"%{count} person","other":"%{count} people"},"not_following":"You're not following anyone","following_everyone":"You're following %{details} (everyone)","you_are_following":"You're following","and":"and"}}}"></div> <div id="reaction-category-resources" class="hidden" aria-hidden="true"> <img data-name="Like" data-slug="like" data-position="1" src="https://assets.dev.to/assets/sparkle-heart-5f9bee3767e18deb1bb725290cb151c25234768a0e9a2bd39370c382d02920cf.svg" width="18" height="18" /> <img data-name="Unicorn" data-slug="unicorn" data-position="2" src="https://assets.dev.to/assets/multi-unicorn-b44d6f8c23cdd00964192bedc38af3e82463978aa611b4365bd33a0f1f4f3e97.svg" width="18" height="18" /> <img data-name="Exploding Head" data-slug="exploding_head" data-position="3" src="https://assets.dev.to/assets/exploding-head-daceb38d627e6ae9b730f36a1e390fca556a4289d5a41abb2c35068ad3e2c4b5.svg" width="18" height="18" /> <img data-name="Raised Hands" data-slug="raised_hands" data-position="4" src="https://assets.dev.to/assets/raised-hands-74b2099fd66a39f2d7eed9305ee0f4553df0eb7b4f11b01b6b1b499973048fe5.svg" width="18" height="18" /> <img data-name="Fire" data-slug="fire" data-position="5" src="https://assets.dev.to/assets/fire-f60e7a582391810302117f987b22a8ef04a2fe0df7e3258a5f49332df1cec71e.svg" width="18" height="18" /> </div> <script> var userSignedIn = false; if (document.readyState === 'complete' || document.readyState === 'interactive') { initAuth(); } else { document.addEventListener('DOMContentLoaded', initAuth); } function initAuth() { var paramToken = new URLSearchParams(window.location.search).get('jwt'); if (paramToken && !userSignedIn) { authenticateUser(paramToken); } else { var iframe = document.createElement('iframe'); iframe.style.display = 'none'; iframe.src = 'https://forem.com/auth_pass/iframe'; document.body.appendChild(iframe); window.addEventListener('message', function(event) { if (event.origin !== 'https://forem.com' && event.origin !== window.location.origin) { return; } var data = event.data; if (data.authenticated && !userSignedIn) { authenticateUser(data.token); } else if(data.authenticated && window.ReactNativeWebView && window.ReactNativeWebView.postMessage) { window.ReactNativeWebView.postMessage(JSON.stringify({ action: 'login', token: data.token, })); } }); } function authenticateUser(token) { fetch('/auth_pass/token_login', { method: 'POST', credentials: 'include', headers: { 'Content-Type': 'application/json', 'X-CSRF-Token': getMetaContent('csrf-token'), }, body: JSON.stringify({ token: token }), }) .then(function(response) { return response.json(); }) .then(function(data) { if (data.success) { if (document.head.querySelector('meta[name="user-signed-in"][content="false"]')) { // Reload the page to update the user's state location.reload(); } } }) .catch(function(error) { console.error('Error during authentication:', error); }); } function getMetaContent(name) { var element = document.querySelector('meta[name="' + name + '"]'); return element ? element.getAttribute('content') : ''; } } </script> </body> </html>