@btc-vision/bsi-common/build/cache/NodeCacheStrategy.js

Common library for OP_NET.

import NodeCache from 'node-cache';
export class NodeCacheStrategy {
    constructor(maxItems = 1024) {
        this.maxItems = 0;
        this.cache = new NodeCache();
        this.maxItems = maxItems;
    }
    async get(key) {
        return this.cache.get(key);
    }
    set(key, value, ttl = 0) {
        if (this.cache.keys().length > this.maxItems) {
            const firstKey = this.cache.keys()[0];
            this.cache.del(firstKey);
        }
        return this.cache.set(key, value, ttl);
    }
}