Automated Swagger API Documentation via Webhooks

This n8n workflow automates the generation of Swagger API documentation directly from configured webhooks and serves it through a dynamic Swagger UI interface. The process starts with a webhook trigger accessible via a specific URL path, which listens for incoming data. Once triggered, a ‘Code’ node processes existing workflow data, examining webhook nodes to generate an OpenAPI specification in YAML format. It organizes the paths, methods, and parameters, incorporating annotations from webhook notes to detail query and body parameters. The final step involves a response node that renders a Swagger UI embedded webpage, dynamically displaying the API documentation based on the generated YAML. This workflow is highly useful for development teams needing real-time, interactive API documentation that updates as webhooks are configured or changed. It streamlines API management, testing, and documentation within a single automated process.