JSON Data Processing: Validate, Transform, and Analyze

This workflow automates JSON data processing, supporting validate, transform, extract, analyze, and merge operations. Key nodes include Webhook Trigger (starts via POST), Input Validation (checks operation), Check Operation Type (routes operations), Validate JSON Structure/Transform JSON Data/Extract JSON Values/Analyze JSON Structure/Merge JSON Objects (processes data), and Validation/Transform/Extract/Analyze/Merge Success Response nodes (returns results). No external API is used, focusing on internal JSON manipulation.\n\nSetup Requirements and Configuration: Install n8n from n8n.io for self-hosting or sign up at cloud.n8n.io for cloud setup. Follow prompts or create a cloud account. No external API credentials are required as the workflow processes JSON internally. In n8n, import the JSON workflow. Configure the Webhook Trigger node: set the path to ‘json-processor,’ configure for POST requests, and set allowedOrigins to ‘https://*’ for secure access. Optionally add header authentication (e.g., ‘Authorization: Bearer your-key’) for enhanced security. Ensure your server supports HTTPS for webhook calls. Verify node expressions in Validate JSON Structure, Transform JSON Data, and other processing nodes to ensure correct JSON path references. No external service configuration is needed, but ensure sufficient server resources for complex JSON operations.\n\nTesting and Deployment Steps: Test with Postman using a POST request to the Webhook URL. Example JSON: {'operation': 'validate', 'data': {'string_field': 'test', 'number_field': 42}} or {'operation': 'merge', 'data': {'a': 1}, 'merge_data': {'b': 2}}. Success responses return 200 with results like validation_result, transformed_data, or merged_data, including timestamp. Error nodes return 400 for invalid operations (e.g., unsupported operation) or malformed JSON. Check n8n logs for errors like ‘Invalid JSON format’ or ‘Missing data field,’ and verify input structure. Activate workflow in n8n. Validate output: ensure validation_result confirms data types, transformed_data includes uppercase_keys, or merged_data combines objects correctly. Debug using n8n logs for issues like incorrect field paths or oversized JSON inputs.