crawlee-storage-extensions/dist/cached-key-value-store.js

Package for Apify/Crawlee that allows to store encrypted text values into the Storages

export class CachedKeyValueStore {
    kvstore;
    #cache = {};
    constructor(kvstore) {
        this.kvstore = kvstore;
        // class constructor
    }
    async getValue(key) {
        if (!this.#cache[key]) {
            const result = await this.kvstore.getValue(key);
            if (result !== null) {
                this.#cache[key] = result;
            }
        }
        return (this.#cache[key] || null);
    }
    async setValue(key, value) {
        if (this.#cache[key] === value
            || (this.#cache[key] == null && value == null)) {
            return;
        }
        if (value === null) {
            await this.kvstore.setValue(key, null);
            delete this.#cache[key];
        }
        else {
            await this.kvstore.setValue(key, value);
            this.#cache[key] = value;
        }
    }
}