rankmycache/dist/adapters/in-memory-adapter.js

An easy-to-use cache providing service.

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.InMemoryAdapter = void 0;
class InMemoryAdapter {
    constructor() {
        this.client = {};
    }
    async get(key) {
        const data = this.client[key];
        if (!data || data instanceof Set) {
            return null;
        }
        return JSON.parse(data);
    }
    async set(key, data) {
        const encodedData = JSON.stringify(data);
        this.client[key] = encodedData;
    }
    async delete(key) {
        delete this.client[key];
    }
    handleError(err) {
        if (err) {
            return null;
        }
        return null;
    }
    async getSetMembers(key) {
        const foundSet = this.client[key];
        return ((foundSet &&
            foundSet instanceof Set &&
            Array.from(foundSet).map(String)) ||
            null);
    }
    async addToSet(key, value) {
        const valuesToAdd = Array.isArray(value) ? value : [value];
        const foundSet = this.client[key];
        if (foundSet && foundSet instanceof Set) {
            valuesToAdd.map((value) => foundSet.add(value));
        }
        else {
            this.client[key] = new Set(valuesToAdd);
        }
    }
    async removeFromSet(key, value) {
        const valuesToRemove = Array.isArray(value) ? value : [value];
        const foundSet = this.client[key];
        if (foundSet && foundSet instanceof Set) {
            valuesToRemove.map((value) => foundSet.delete(value));
            if (foundSet.size === 0) {
                delete this.client[key];
            }
        }
    }
    async isSetMember(key, value) {
        const foundSet = this.client[key];
        return foundSet && foundSet instanceof Set && foundSet.has(value);
    }
    async expire(key, ttl) {
        setTimeout(() => {
            delete this.client[key];
        }, ttl * 1000);
    }
}
exports.InMemoryAdapter = InMemoryAdapter;
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