n8n User Verification and Login Workflow

This n8n workflow provides a robust framework for handling user verification and login processes, likely integrating with an external authentication service. It acts as a central hub, receiving requests, applying conditional logic, and responding appropriately based on the outcome of API calls.

What it does

This workflow is designed to process incoming requests, perform an HTTP API call, and then conditionally respond based on the success or failure of that call.

1. Listens for Incoming Requests: The workflow starts with a Webhook node, which acts as an API endpoint, waiting for external systems to send data.
2. Performs an HTTP Request: It then makes an HTTP Request to an external API (e.g., an authentication service like Auth0, as suggested by the directory name, or another verification endpoint).
3. Conditional Processing: An If node evaluates the result of the HTTP Request.
   • On Success: If the HTTP request is successful (e.g., user verified/logged in), the workflow proceeds to an Edit Fields (Set) node, likely to format or prepare a success response.
   • On Failure: If the HTTP request fails, the workflow uses a Stop and Error node to halt execution and signal an error.
4. Responds to Webhook: Regardless of success or failure (if it doesn't error out), the workflow uses a Respond to Webhook node to send a response back to the original caller, completing the request-response cycle.
5. Documentation: A Sticky Note is included for internal documentation or notes within the workflow.

Prerequisites/Requirements

• n8n Instance: A running n8n instance (cloud or self-hosted).
• External API Endpoint: An external API endpoint (e.g., Auth0, a custom authentication service) that the HTTP Request node will interact with for user verification or login.
• Webhook Configuration: The external system making the initial request must be configured to send data to the n8n Webhook URL.

Setup/Usage

1. Import the Workflow:
   • Download the provided JSON file.
   • In your n8n instance, go to "Workflows" and click "New".
   • Click the "Import from JSON" button and paste the workflow JSON or upload the file.
2. Configure the Webhook:
   • The Webhook node (id: 47) will automatically generate a unique URL when the workflow is activated. Copy this URL.
   • Configure your external application or service to send HTTP requests (e.g., POST requests with user credentials) to this n8n Webhook URL.
3. Configure the HTTP Request:
   • Open the HTTP Request node (id: 19).
   • Set the URL, Method, Headers, and Body according to the requirements of your external authentication/verification API. You will likely need to pass user data received from the initial webhook.
4. Configure the If Node:
   • Open the If node (id: 20).
   • Define the conditions to check the response from the HTTP Request node. For example, you might check for a specific HTTP status code (e.g., 200 for success), a field in the response body (e.g., json.success === true), or the presence of a specific token.
5. Configure Respond to Webhook:
   • Open the Respond to Webhook node (id: 535).
   • Customize the Response Body and Status Code to return appropriate messages or data back to the calling system based on the workflow's outcome.
6. Activate the Workflow:
   • Save and activate the workflow.

Once activated, the workflow will be ready to receive requests via its webhook and process them according to the defined logic.