@da440dil/js-locker/lib/Locker.js

Distributed locking using Redis

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.Locker = void 0;
const crypto_1 = require("crypto");
const Lock_1 = require("./Lock");
const LockResult_1 = require("./LockResult");
class Locker {
    constructor(locker) {
        this.locker = locker;
    }
    async lock(key, ttl) {
        const value = await this.randomString();
        const lock = new Lock_1.Lock(this.locker, key, value);
        const result = await lock.lock(ttl);
        return new LockResult_1.LockResult(lock, result);
    }
    randomString() {
        return new Promise((resolve, reject) => {
            (0, crypto_1.randomBytes)(16, (err, buf) => {
                if (err) {
                    return reject(err);
                }
                resolve(buf.toString('base64'));
            });
        });
    }
}
exports.Locker = Locker;