2022-12-12 16:26:30 +03:00
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// This API-Endpoint will be cached via nuxt.config.ts -> nitro.routeRules['/api/og-image'].cache.maxAge = 86400
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function extractOgImageUrl(html: string): string {
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const match = html.match(/<meta property="og:image" content="([^"]+)" \/>/)
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return match?.[1] ?? ''
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}
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2022-12-11 01:09:11 +03:00
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export default defineEventHandler(async (event) => {
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const { cardUrl } = getQuery(event)
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if (!cardUrl) {
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throw createError({
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statusCode: 422,
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statusMessage: 'Missing cardUrl.',
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})
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}
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if (typeof cardUrl !== 'string') {
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throw createError({
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statusCode: 422,
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statusMessage: 'cardUrl must be string.',
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})
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}
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2022-12-12 16:26:30 +03:00
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const html = await $fetch<string>(cardUrl)
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const ogImageUrl = extractOgImageUrl(html)
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2022-12-11 01:09:11 +03:00
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await send(event, ogImageUrl)
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})
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2022-12-12 16:26:30 +03:00
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