pksilen / memory-cache-node Goto Github PK

As per documentation, the way to import the MemoryCache class is

import { MemoryCache } from 'memory-cache-node';

which doesn't work because MemoryCache is exported as default - as per MemoryCache.d.ts:

export default class MemoryCache<K, V>

and the above import statement gives SyntaxError: The requested module 'memory-cache-node' does not provide an export named 'MemoryCache' error.

So the import that actually works is

import MemoryCache from 'memory-cache-node';

But then you gotta use it like

const cache = new MemoryCache.MemoryCache<string, number>(30, 50000);

otherwise you get TypeError: object is not a constructor.

I'm using es6 modules, if it's relevant.

Hello,

Is there any way to limit cache by size rather than item count?

Hey,

is it possible to ask the library how long an item is left "stored" (ie. get its time left in the cache)?

Thanks!

Hi

What about adding support for converting the cache to json and vice versa? This way I can save/load it to/from a file for when the server restarts.

convertCacheToJson(): string {
    const json = Object.fromEntries(this.itemKeyToItemValueWrapperMap);
    return JSON.stringify(json);
}

convertJsonToCach(json: string): number {
    const tempMap = new Map(Object.entries(JSON.parse(json)));
    this.clear();    
    for (const entry of tempMap.entries()) {      
      this.itemKeyToItemValueWrapperMap.set(...);
    }
    return this.getItemCount();
}

I saw that itemKeyToItemValueWrapperMap is readOnly and I didn't want to break your code/pattern so I was thinking of using a temporary map but got lost in the middle. What do you think?
Thanks