n8n Workflow: Basic Webhook Listener with Conditional Logic and Delay

This n8n workflow demonstrates a fundamental setup for receiving data via a webhook, applying conditional logic, transforming the data, and introducing a delay. It serves as a versatile starting point for various automation tasks that begin with an external trigger.

What it does

This workflow performs the following steps:

1. Listens for incoming data: A Webhook node acts as the entry point, waiting for an HTTP request to trigger the workflow.
2. Applies conditional logic: An If node evaluates the incoming data based on a defined condition.
3. Transforms data (if condition met): If the condition in the If node evaluates to true, the workflow proceeds to an Edit Fields (Set) node, which allows for modifying or adding fields to the data.
4. Introduces a delay: A Wait node pauses the workflow execution for a specified duration, useful for rate limiting or staggering subsequent actions.

Prerequisites/Requirements

• n8n Instance: A running n8n instance to import and execute the workflow.
• External Service: An external service or application capable of sending HTTP POST requests to the n8n webhook URL.

Setup/Usage

1. Import the workflow:
   • Copy the provided JSON code.
   • In your n8n instance, click on "Workflows" in the left sidebar.
   • Click "New" and then "Import from JSON".
   • Paste the JSON code and click "Import".
2. Activate the workflow:
   • Once imported, ensure the workflow is active by toggling the "Active" switch in the top right corner.
3. Configure the Webhook:
   • Click on the "Webhook" node.
   • Note the "Webhook URL" displayed. This is the endpoint your external service will send data to.
   • By default, it's set to "POST" method. Adjust if your external service uses a different method.
4. Configure the If node:
   • Click on the "If" node.
   • Define the condition(s) that should be met for the workflow to proceed down the true branch. For example, you might check for a specific value in the incoming JSON payload.
5. Configure the Edit Fields (Set) node:
   • Click on the "Edit Fields" node.
   • Add or modify fields as needed. This node is only executed if the "If" node's condition is true.
6. Configure the Wait node:
   • Click on the "Wait" node.
   • Specify the desired delay duration (e.g., 5 seconds, 1 minute).
7. Test the workflow:
   • Send a test request from your external service to the Webhook URL.
   • Monitor the execution in n8n to ensure it runs as expected and the conditional logic and delay function correctly.