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<html lang="fr"> |
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See: https://www.w3.org/TR/2012/CR-html5-20121217/document-metadata.html#charset --> |
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<meta name="viewport" content="width=device-width,initial-scale=1"> |
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<title>HTML-over-WebSockets — David Larlet</title> |
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<meta name="description" content="But this wasn’t terribly easy for many developers to grok at first. I sure didn’t. And the benefits weren’t exactly clear either. After years (decades, even) of wrapping our heads around the HTTP request cycle, to which all server-handled features must conform, adopting this WebSocket tech layer required a lot of head scratching. As with many clever new technologies or protocols, we needed a higher-level abstraction that provided something really effective for getting a new feature in front of a user, fast."> |
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<script> |
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function toggleTheme(themeName) { |
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document.documentElement.classList.toggle( |
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'forced-dark', |
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themeName === 'dark' |
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) |
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document.documentElement.classList.toggle( |
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'forced-light', |
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themeName === 'light' |
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) |
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} |
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<body class="remarkdown h1-underline h2-underline h3-underline em-underscore hr-center ul-star pre-tick" data-instant-intensity="viewport-all"> |
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<article> |
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<header> |
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<h1>HTML-over-WebSockets</h1> |
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</header> |
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<nav> |
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<p class="center"> |
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<a rel="prev" href="/david/2021/03/03/" title="Publication précédente : Vivre avec">← Précédent</a> • |
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<a href="/david/" title="Aller à l’accueil"><svg class="icon icon-home"> |
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<use xlink:href="/static/david/icons2/symbol-defs.svg#icon-home"></use> |
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</svg> Accueil</a> |
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<hr> |
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<blockquote lang="en"> |
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<p>But this wasn’t terribly easy for many developers to grok at first. I sure didn’t. And the benefits weren’t exactly clear either. After years (decades, even) of wrapping our heads around the HTTP request cycle, to which all server-handled features must conform, <mark>adopting this WebSocket tech layer required a lot of head scratching</mark>. As with many clever new technologies or protocols, we needed a higher-level abstraction that provided something really effective for getting a new feature in front of a user, fast.</p> |
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<p><cite><em><a href="https://alistapart.com/article/the-future-of-web-software-is-html-over-websockets/">The Future of Web Software Is HTML-over-WebSockets</a></em> (<a href="/david/cache/2021/a722bf15647dfe923d3c28b2e229098c/">cache</a>)</cite></p> |
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</blockquote> |
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<p>En ce moment, ça me gratte justement bien la tête. Je me retrouve <a href="https://benhoyt.com/writings/the-small-web-is-beautiful/">davantage dans cette approche</a> (<a href="/david/cache/2021/862d065d924906f327f8a95e23659295/">cache</a>) et j’ai presque du plaisir à utiliser <a href="https://stimulus.hotwire.dev/">Stimulus</a>, ça semble être le niveau de structuration et de non-abstraction dont j’ai besoin. J’ai aussi essayé <a href="https://turbo.hotwire.dev/">Turbo</a> mais je n’ai pas été assez loin pour voir les avantages décrits dans l’article (et c’est trop jeune pour mon niveau de confiance) : j’ai fini par recoder juste ce qu’il me fallait avec Stimulus.</p> |
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<p>J’apprécie le fait que ces ré-explorations donnent lieux à de nouvelles initiatives comme <a href="https://www.django-unicorn.com/">Django-Unicorn</a> ou <a href="https://sockpuppet.argpar.se/">Sockpuppet</a> pour ne citer que les déclinaisons dans l’écosystème Django. J’ai l’impression que c’est le compromis acceptable pour le vieux développeur que je suis : de la réactivité au niveau de l’interface pour les utilisateur·ices, de la logique et de la stabilité côté développement pour ma sénilité d’esprit.</p> |
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<p>Attention si vous partez sur des WebSockets, j’ai <a href="https://httptoolkit.tech/blog/http-wtf/">récemment appris</a> (<a href="/david/cache/2021/cbd2101777421fa7549472859210a69c/">cache</a>) que les restrictions de type <abbr title="Cross-Origin Resource Sharing">CORS</abbr> ne sont pas du tout respectées.</p> |
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<p>Note : je suis surpris qu’il n’y ait pas encore un projet intitulé <strong>RESTream</strong> dans le domaine 🙃🚎.</p> |
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<nav> |
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<p class="center"> |
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<a rel="prev" href="/david/2021/03/03/" title="Publication précédente : Vivre avec">← Précédent</a> • |
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<a href="/david/2021/" title="Liste des publications récentes">↑ En 2021</a> |
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</p> |
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</nav> |
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</article> |
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</svg> Légal</abbr> |
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</p> |
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<template id="theme-selector"> |
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<form> |
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<fieldset> |
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<legend><svg class="icon icon-brightness-contrast"> |
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</svg> Thème</legend> |
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<input type="radio" value="auto" name="chosen-color-scheme" checked> Auto |
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themeSelectorTemplate.replaceWith(form) |
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form.addEventListener('change', (e) => { |
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const chosenColorScheme = e.target.value |
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localStorage.setItem('theme', chosenColorScheme) |
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toggleTheme(chosenColorScheme) |
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const selectedTheme = localStorage.getItem('theme') |
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} |
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} |
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const prefersColorSchemeDark = '(prefers-color-scheme: dark)' |
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// WARNING: Safari does not have/supports `conditionText`. |
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if (cssRule.conditionText !== prefersColorSchemeDark) { |
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continue |
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if (cssRule.cssText.startsWith(prefersColorSchemeDark)) { |
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continue |
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} |
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mediaRules = mediaRules.concat(Array.from(cssRule.cssRules)) |
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} |
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// WARNING: do not try to insert a Rule to a styleSheet you are |
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// currently iterating on, otherwise the browser will be stuck |
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// in a infinite loop… |
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for (const mediaRule of mediaRules) { |
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styleSheet.insertRule(mediaRule.cssText) |
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hasDarkRules = true |
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} |
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} |
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if (hasDarkRules) { |
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loadThemeForm('#theme-selector') |
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} |
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</body> |
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</html> |
