Building Real-Time Update Systems with MQTT and Express.js
express•Mar 10, 2026

Building Real-Time Update Systems with MQTT and Express.js

In this tutorial, you'll learn how to build a complete real-time football sports update system from scratch using MQTT and Express.js, including creating an admin interface, viewer interface, and backend that uses MQTT to broadcast changes instantly to every connected client.

freecodecamp

freecodecamp

Original source

Key summary

Learn how to build a real-time update system using MQTT and Express.js, including setting up the MQTT broker, building the Express server, and delivering real-time data to web browsers.

TL;DR

  • Build a real-time update system using MQTT and Express.js
  • Set up the MQTT broker using Mosquitto
  • Create an admin interface for uploading scores and match details
  • Build a viewer interface that updates in real time without page refreshes
  • Use Server-Sent Events to push MQTT messages to web browsers
  • Create a REST API for match and score management
  • Use Node.js and JavaScript for development
  • Learn how to integrate MQTT with Express and deliver real-time data

This content is automatically summarized using AI. For full context, always refer to the original article.

Related posts

Backend Challenges of Processing Repeat Payments
freecodecampfreecodecamp

Backend Challenges of Processing Repeat Payments

Modern payment systems become complex when handling repeat transactions. Behind the scenes, engineers deal with scheduling, retries, state management, event processing, and reliability challenges. This article will look at seven backend challenges teams face when building systems that process repeat payments.

#backend
2026/06/04
Read More

Subscribe For New Content Updates

By becoming a member of our blog, you have access to articles and content.