36 lines
1.1 KiB
JavaScript
36 lines
1.1 KiB
JavaScript
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// Streaming SSR demo: the shell flushes immediately, the slow section
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// streams in when its promise resolves. Run it:
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// node examples/streaming/server.js
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//
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// This page is server-rendered only (no hydration script): async holes
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// stream on the server, while client-side views must be synchronous.
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// Serializing streamed state for hydration is bankai v10 territory.
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import choo from '@choojs/core'
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import html from '@choojs/html'
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const wait = (ms) => new Promise((resolve) => setTimeout(resolve, ms))
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export default function createApp ({ delay = 500 } = {}) {
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const app = choo()
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app.use((state) => { state.delay = delay })
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app.route('/', mainView)
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app.route('*', mainView)
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return app
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}
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function mainView (state, emit) {
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return html`
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<body>
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<h1>choo streams</h1>
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<p>This shell was flushed before the slow part finished.</p>
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${slowSection(state)}
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</body>
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`
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}
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async function slowSection (state) {
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await wait(state.delay)
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return html`<section id="slow">…and this arrived ${state.delay}ms later, same response.</section>`
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}
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