13 lines
617 B
JavaScript
13 lines
617 B
JavaScript
export default function setFastlySurrogateKey(req, res, next) {
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// Fastly provides a Soft Purge feature that allows you to mark content as outdated (stale) instead of permanently
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// purging and thereby deleting it from Fastly's caches. Objects invalidated with Soft Purge will be treated as
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// outdated (stale) while Fastly fetches a new version from origin.
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//
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// Use of a surrogate key is required for soft purging
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// https://docs.fastly.com/en/guides/soft-purges
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// https://docs.fastly.com/en/guides/getting-started-with-surrogate-keys
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res.set('surrogate-key', 'all-the-things')
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return next()
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}
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