MQTT GeneralInstall

Summary

Send a message via MQTT to accept a browser alert dialog with optional prompt text and an optional delay before automatic acceptance.

Inputs

• Topic (required) — The MQTT topic to which the accept alert message is published.
• QoS — The MQTT Quality of Service level for message delivery (0, 1, or 2).
• Include Input Items — Whether to include selected fields from the node's input items in the MQTT payload under payload.inputItems.
• Include Input Items Fields — Comma-separated list of input item fields to include in the payload if Include Input Items is enabled.
• Wait For Response — Whether to wait for a reply message on a response MQTT topic before completing the node execution.
• Response Topic (required) — The MQTT topic to listen on for a response message if Wait For Response is enabled.
• Response Timeout (ms) — Maximum time to wait for a response message in milliseconds before timing out.
• Parse Response As JSON — Whether to parse the response message payload as JSON if Wait For Response is enabled.
• Prompt Text — Text to send to the alert prompt dialog when accepting it, if applicable.
• Show (sec) — Delay in seconds before automatically accepting the alert, allowing observation of the alert popup.

Output shape

a list of items, each containing original input data extended with MQTT publish details and optionally a response payload if waiting for a response

If 'Wait For Response' is enabled, the node subscribes to the specified response topic and waits up to the given timeout to receive a reply message, which is then included in the output. If no input items are provided, a single output item with only the MQTT action details is returned.

Links

• n8n community nodes installation guide