Refactor notebook creation API endpoint and model to handle error res…

…ponse from Jupyter Server

server/app/services/notebook.py

@@ -33,6 +33,9 @@ def get_notebook_by_path(notebook_path: str = None):
     try:
       path = f"{jupyter_api_path}/{notebook_path}"
       response = requests.get(path)
+      logger.info(f"Response: {response.content}")
+      if response.status_code != 200:
+        return jsonify({'message': 'Error getting notebook from Jupyter Server'}), 404
     except Exception as e:
       return jsonify({'message': 'Error getting notebook from Jupyter Server: ' + str(e)}), 404
 
@@ -42,7 +45,6 @@ def get_notebook_by_path(notebook_path: str = None):
     except Exception as e:
       return jsonify({'message': 'Error getting notebook from DB: ' + str(e)}), 404
 
-    logger.info(f"Response: {response.json()}")
     return response.json()
 
   @staticmethod