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feat(core): caching enhancements (#9227)

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* fix(core): redis cache ignore `maxAge` when refreshing

memory cache do not have such a problem

Signed-off-by: Rongrong <15956627+Rongronggg9@users.noreply.github.com>

* feat(core): make `cache.tryGet()` refreshing selectable

Signed-off-by: Rongrong <15956627+Rongronggg9@users.noreply.github.com>

* docs: `ctx.cache.tryGet()` update

Signed-off-by: Rongrong <15956627+Rongronggg9@users.noreply.github.com>
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Rongrong
2022-03-19 02:13:15 +08:00
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parent 933080a1f5
commit 41910802f2
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docs/joinus/quick-start.md
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@@ -292,7 +292,7 @@ const description = await ctx.cache.tryGet(link, async () => {
});
```
tryGet 的实现可以看[这里](https://github.com/DIYgod/RSSHub/blob/master/lib/middleware/cache/index.js#L58)，第一个参数为缓存的 key，第二个参数为缓存数据获取方法，第三个参数为缓存时间，正常情况不应该传入，缓存时间默认为 [CACHE_CONTENT_EXPIRE](/install/#缓存配置)，且每次访问缓存会重新计算过期时间
tryGet 的实现可以看[这里](https://github.com/DIYgod/RSSHub/blob/master/lib/middleware/cache/index.js#L58)。第一个参数为缓存的 key；第二个参数为缓存未命中时的数据获取方法；第三个参数为缓存时间，正常情况不应该传入，缓存时间默认为 [CACHE_CONTENT_EXPIRE](/install/#缓存配置)；第四个参数为控制本次尝试缓存命中时是否需要重新计算过期时间（给缓存「续期」）的开关，`true` 为打开，`false` 为关闭，默认为打开
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