JSON String Validator via Webhook

This n8n workflow provides a simple and efficient way to validate JSON strings sent via a webhook. It is designed for developers or systems that need to verify the correctness of JSON data before further processing. The workflow begins with a webhook node that listens for incoming POST requests containing a JSON string in its payload. The JSON string is then passed to a ‘Code’ node, which contains custom JavaScript logic to check if the string is valid JSON by attempting to parse it. If parsing is successful, the system responds with a positive validation result; otherwise, it provides an error message explaining the failure. This setup is useful for real-time validation of user-inputted JSON data, integration testing, or API data handling, ensuring data integrity before any further operations. Overall, this workflow enhances data validation processes, reduces errors, and improves overall system reliability.