Receive Messages from MQTT Queue

This workflow is a basic MQTT listener designed to receive messages published to a specified MQTT topic or queue. It uses the n8n MQTT Trigger node, which connects to an MQTT broker using provided credentials and activates upon receiving messages. Once triggered, it captures the payload, topic, and metadata for further processing in downstream nodes.

Benefits include effortless real-time messaging integration without custom code, enabling quick setup for pub/sub patterns common in IoT and automation. It's lightweight, resource-efficient, and scales well for high-volume message queues. Time-saving for developers avoiding boilerplate MQTT client code.

Use cases: Ingest sensor data from IoT devices, handle real-time notifications from web apps, process queue-based tasks in microservices, or trigger workflows on device events like temperature alerts or button presses. Easily extend by adding nodes for data transformation, storage (e.g., database insert), or notifications (e.g., Slack/Email). Perfect starter for MQTT-based automations despite its simplicity.