LRU cache and headers

[Zyles]

Hello again.

I need headers saved in my cache using LRU.

I tried the:

cachios.cache = new LRU({ max: cacheMaxAmount
      , length: function (n, key) { return n * 2 + key.length }
      , dispose: function (key, n) { n.close() }
      , maxAge: cacheMaxAge })

cachios.getCacheIdentifier = function (config) {
      return {
        method: config.method,
        url: config.url,
        params: config.params,
        data: config.data,
        headers: config.headers,
      }
    }

But it did not make a difference and still only saves status and data.

So I was wondering wether LRU cache does not support this?

How can I save headers with LRU cache?

Thanks.

[AlbinoDrought]

Hey,

Try this: https://github.com/AlbinoDrought/cachios#custom-response-copier

cachios.getResponseCopy = function (response) {
  return {
    status: response.status,
    headers: response.headers,
    data: response.data,
  };
};

getResponseCopy is used when modifying a response before storing it in cache. By default it trims responses down to just status and data, which is likely the issue here.

getCacheIdentifier is used when determining the cache key used for a request. The default implementation looks like this:

function defaultCacheIdentifer(config) {
  return {
    method: config.method,
    url: config.url,
    params: config.params,
    data: config.data,
  };
}

Which generally covers most cases. Your above example will change the cache key and send a new request if method, url, query params, body, or headers do not match a request in cache.

[Zyles]

Oh derp. I realized the first function was for the cache key.

Thanks.