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Secure Webhook

This workflow provides a secure Webhook solution that utilizes Bearer Token for authentication, ensuring that only authorized clients can access it. It validates the required fields in the request body to ensure data integrity and returns a standardized JSON response. Users can flexibly configure the authentication token and required fields, and after successful validation, custom business logic can be inserted. This is suitable for API interfaces that require strict authentication and data format requirements, ensuring the security and effectiveness of data exchange.

Workflow Diagram
Secure Webhook Workflow diagram

Workflow Name

Secure Webhook

Key Features and Highlights

  • Implements authentication for webhook calls using Bearer Token, ensuring access is granted only to authorized clients.
  • Validates required fields in the request body to guarantee data completeness and integrity.
  • Standardizes JSON-formatted responses, supporting three status codes: 200 (Success), 400 (Bad Request), and 401 (Unauthorized).
  • Flexible configuration allowing users to customize the authentication token and the list of required fields.
  • Highly extensible, supporting insertion of custom business logic nodes after successful validation.

Core Problems Addressed

This workflow primarily tackles two critical issues related to exposing webhook interfaces:

  1. Preventing unauthorized or malicious requests from accessing sensitive business processes.
  2. Ensuring incoming data contains all essential fields to avoid exceptions or errors caused by missing data.

Use Cases

  • Scenarios requiring public API endpoints with strict authentication controls.
  • Receiving data from third-party systems or frontend forms while ensuring data format and field completeness.
  • Building secure and reliable webhook endpoints for triggering automated workflows.
  • Internal enterprise system integrations that demand secure and valid data exchanges.

Main Process Steps

  1. Webhook Node: Serves as the entry point for external POST requests.
  2. Configuration Node: Sets up the Bearer Token and required fields configuration.
  3. Check Authorization Header Node: Validates the Bearer Token in the request header to verify authorization.
  4. 401 Unauthorized Node: Returns an unauthorized response if the token is missing or invalid.
  5. Has Required Fields? Node: Uses JavaScript code to check if all required fields are present in the request body.
  6. 400 Bad Request Node: Returns a bad request response if any required fields are missing.
  7. Add Workflow Nodes Here Node: Executes user-defined business logic after successful authorization and data validation.
  8. Create Response Node: Constructs a success response message upon completion of business processing.
  9. 200 OK Node: Returns a success status to the caller.

Involved Systems or Services

  • n8n built-in Webhook service
  • JavaScript code node (for field validation)
  • Standard HTTP response nodes

Target Audience and Value

  • Developers and automation engineers who need to build secure and reliable webhook interfaces.
  • Enterprise IT teams ensuring secure access and data integrity for external system interfaces.
  • SaaS platform operators aiming to validate client API calls and data correctness.
  • Any teams exposing data interfaces externally with a focus on security and data quality.

This workflow offers an efficient and customizable secure webhook solution, enabling users to rapidly deploy endpoints with authentication and data validation, significantly enhancing the security and stability of webhook calls.