Redis Controller for keeping track of URLs. Converts methods to promises.

RedisController.js

const redis = require('redis');

class RedisController {

    constructor(set, redisConfig = {}) {
        this.set = set;
        this.client = redis.createClient(redisConfig);
    }

    keyExists(url) {
        return new Promise((resolve) => {
            this.client.EXISTS(url, (err, res) => {
                return resolve(!!res);
            });
        });
    }

    exists(url) {
        return new Promise((resolve) => {
            this.client.SISMEMBER(this.set, url, (err, res) => {
                return resolve(!!res);
            });
        });
    }

    add(url) {
        return new Promise((resolve) => {
            this.client.SADD(this.set, url, (err, res) => {
                return resolve(!!res);
            });
        });
    }

    getUrlsFromQueue() {
        return new Promise((resolve, reject) => {
            
        });
    }

    deleteSet() {
        return new Promise((resolve) => {
            this.client.DEL(this.set, (err, res) => {
                return resolve(!!res);
            });
        });
    }

    deleteUrlsFromQueue(urls) {

    }

}

module.exports = RedisController;