# n8n Trigger

The n8n Trigger node gets triggered when the n8n instance is started or restarted. The n8n Trigger node can be used to notify when the n8n instance starts.

# Node Reference

  • Events
    • Instance started: Triggers when the n8n instance is started or restarted

# Example Usage

This workflow allows you to receive a message on Mattermost when your n8n instance starts. You can also find the workflow (opens new window) on n8n.io. This example usage workflow uses the following nodes.

The final workflow should look like the following image.

A workflow with the Webhook node

# 1. n8n Trigger node

The n8n Trigger node will trigger the workflow whenever n8n starts.

  1. Select 'Instance started' from the Events dropdown list.

In the screenshot below, you will notice that the node triggers the workflow when the n8n instance starts.

Using the n8n Trigger node to trigger the workflow

# 2. Mattermost node (post: message)

This node will send a message in the workflow channel on Mattermost.

  1. First of all, you'll have to enter credentials for the Mattermost node. You can find out how to enter credentials for this node here.
  2. Select a channel from the Channel ID dropdown list.
  3. Click on the gears icon next to the Message field click on Add Expression.
  1. Enter the following message in the Expression field: Your n8n instance started at {{$json["timestamp"]}}..
  2. Click on Execute Node to run the workflow.

In the screenshot below, you will notice that the node sends a message to Mattermost.

Using the Mattermost node to send a message to a channel

💡 Activate workflow for production

This example workflow uses the n8n Trigger node, which is a Trigger node. You'll need to save the workflow and then click on the Activate toggle on the top right of the screen to activate the workflow.