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Cache HTTP headers and status

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This commit is contained in:
mikiher
2023-11-25 23:49:56 +02:00
parent 288a32cc1e
commit 3ff41f2b43
2 changed files with 28 additions and 13 deletions
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11
server/managers/ApiCacheManager.js
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@ -4,7 +4,7 @@ const Database = require('../Database')
class ApiCacheManager {
defaultCacheOptions = { max: 1000, maxSize: 10 * 1000 * 1000, sizeCalculation: item => item.length }
defaultCacheOptions = { max: 1000, maxSize: 10 * 1000 * 1000, sizeCalculation: item => (item.body.length + JSON.stringify(item.headers).length) }
defaultTtlOptions = { ttl: 30 * 60 * 1000 }
constructor(cache = new LRUCache(this.defaultCacheOptions), ttlOptions = this.defaultTtlOptions) {
@ -30,17 +30,20 @@ class ApiCacheManager {
const cached = this.cache.get(stringifiedKey)
if (cached) {
Logger.debug(`[ApiCacheManager] Cache hit: ${stringifiedKey}`)
res.send(cached)
res.set(cached.headers)
res.status(cached.statusCode)
res.send(cached.body)
return
}
res.originalSend = res.send
res.send = (body) => {
Logger.debug(`[ApiCacheManager] Cache miss: ${stringifiedKey}`)
const cached = { body, headers: res.getHeaders(), statusCode: res.statusCode }
if (key.url.search(/^\/libraries\/.*?\/personalized/) !== -1) {
Logger.debug(`[ApiCacheManager] Caching with ${this.ttlOptions.ttl} ms TTL`)
this.cache.set(stringifiedKey, body, this.ttlOptions)
this.cache.set(stringifiedKey, cached, this.ttlOptions)
} else {
this.cache.set(stringifiedKey, body)
this.cache.set(stringifiedKey, cached)
}
res.originalSend(body)
}