feat: webhook trigger backend api (#24387)

Co-authored-by: autofix-ci[bot] <114827586+autofix-ci[bot]@users.noreply.github.com>

api/controllers/trigger/webhook.py

@@ -0,0 +1,43 @@
+import logging
+
+from flask import jsonify
+from werkzeug.exceptions import BadRequest, NotFound
+
+from controllers.trigger import bp
+from services.webhook_service import WebhookService
+
+logger = logging.getLogger(__name__)
+
+
+@bp.route("/webhook/<string:webhook_id>", methods=["GET", "POST", "PUT", "PATCH", "DELETE", "HEAD", "OPTIONS"])
+def handle_webhook(webhook_id: str):
+    """
+    Handle webhook trigger calls.
+
+    This endpoint receives webhook calls and processes them according to the
+    configured webhook trigger settings.
+    """
+    try:
+        # Get webhook trigger, workflow, and node configuration
+        webhook_trigger, workflow, node_config = WebhookService.get_webhook_trigger_and_workflow(webhook_id)
+
+        # Extract request data
+        webhook_data = WebhookService.extract_webhook_data(webhook_trigger)
+
+        # Validate request against node configuration
+        validation_result = WebhookService.validate_webhook_request(webhook_data, node_config)
+        if not validation_result["valid"]:
+            raise BadRequest(validation_result["error"])
+
+        # Process webhook call (send to Celery)
+        WebhookService.trigger_workflow_execution(webhook_trigger, webhook_data, workflow)
+
+        # Return configured response
+        response_data, status_code = WebhookService.generate_webhook_response(node_config)
+        return jsonify(response_data), status_code
+
+    except ValueError as e:
+        raise NotFound(str(e))
+    except Exception as e:
+        logger.exception(f"Webhook processing failed for {webhook_id}: {str(e)}")
+        return jsonify({"error": "Internal server error", "message": str(e)}), 500