BullMQ Has a Free API — Here's How to Handle Background Jobs in Node.js

BullMQ is a Redis-based queue for Node.js that handles background jobs, scheduled tasks, and rate limiting. Installation npm install bullmq ioredis Producer — Add Jobs import { Queue } from " bullmq " ; const emailQueue = new Queue ( " emails " , { connection : { host : " localhost " , port : 6379 } }); await emailQueue . add ( " welcome " , { to : " user@example.com " , subject : " Welcome! " , template : " welcome-email " }); // Delayed job await emailQueue . add ( " reminder " , { to : " user@example.com " }, { delay : 3600000 }); // Repeatable job await emailQueue . add ( " daily-report " , {}, { repeat : { pattern : " 0 9 * * * " } }); Worker — Process Jobs import { Worker } from " bullmq " ; const worker = new Worker ( " emails " , async ( job ) => { console . log ( `Processing ${ job . name } : ${ job . data . to } ` ); await sendEmail ( job . data ); return { sent : true }; }, { connection : { host : " localhost " }, concurrency : 5 }); worker . on ( " completed " , ( job , res