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ssr-caching: document way to configure cache key (#1133)

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* ssr-caching: document way to configure cache key

* simplify comment
This commit is contained in:
Sébastien Dubois 2017-02-14 18:31:50 +02:00 committed by Arunoda Susiripala
parent 507e8c2ca4
commit 3c7237169f
1 changed files with 15 additions and 5 deletions
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20
examples/ssr-caching/server.js
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@ -36,11 +36,21 @@ app.prepare()
}) })
}) })
/*
* NB: make sure to modify this to take into account anything that should trigger
* an immediate page change (e.g a locale stored in req.session)
*/
function getCacheKey (req) {
return `${req.url}`
}
function renderAndCache (req, res, pagePath, queryParams) { function renderAndCache (req, res, pagePath, queryParams) {
const key = getCacheKey(req)
// If we have a page in the cache, let's serve it // If we have a page in the cache, let's serve it
if (ssrCache.has(req.url)) { if (ssrCache.has(key)) {
console.log(`CACHE HIT: ${req.url}`) console.log(`CACHE HIT: ${key}`)
res.send(ssrCache.get(req.url)) res.send(ssrCache.get(key))
return return
} }
@ -48,8 +58,8 @@ function renderAndCache (req, res, pagePath, queryParams) {
app.renderToHTML(req, res, pagePath, queryParams) app.renderToHTML(req, res, pagePath, queryParams)
.then((html) => { .then((html) => {
// Let's cache this page // Let's cache this page
console.log(`CACHE MISS: ${req.url}`) console.log(`CACHE MISS: ${key}`)
ssrCache.set(req.url, html) ssrCache.set(key, html)
res.send(html) res.send(html)
}) })