Real time events

Real time events provides a framework for real-time communication between the server and the browser in Moodle plugins. It supports both server-to-client notifications and client-to-server messaging.

For example, when a teacher updates course content or starts a live quiz, all connected students instantly see the changes without refreshing the page, making the learning experience more interactive and engaging.

Features

• Secure channel-based communication with hash authentication
• Bidirectional messaging (server'client and client'server)
• Guest user support (configurable)
• Built-in test page for diagnostics and latency measurement
• Pluggable backend architecture - ship your own or use the included PHP polling and Centrifugo backends

Backend plugins

Communication is handled by pluggable backends:

• PHP polling (included) - works out of the box with no external dependencies. Events are stored in the database and delivered via long polling (configurable). No setup required.
• Centrifugo (included) - uses the Centrifugo WebSocket server for low-latency, scalable real-time delivery. Includes an easy-to-deploy template.

For plugin developers

Adding real-time features to your plugin requires just a few lines of code. See the README for full documentation and code examples.

Tracker

This plugin was suggested and discussed in https://moodle.atlassian.net/browse/MDL-65795