🔍 Code Extractor

Flask API endpoint that retrieves a specific chat session by its ID and returns it as JSON.

Purpose

This REST API endpoint serves as a GET handler for retrieving chat session details. It queries the chat session service with the provided session ID, handles cases where the session doesn't exist, and returns the session data in JSON format. It's part of a larger chat/document management system and provides error handling for both missing sessions and server errors.

Source Code

def api_get_chat_session(session_id):
    """Get a chat session"""
    try:
        chat_session = chat_session_service.get_chat_session(session_id)
        if not chat_session:
            return jsonify({'error': 'Chat session not found'}), 404
        
        return jsonify({'chat_session': chat_session.to_dict()})
    except Exception as e:
        logger.error(f"Get chat session error: {e}")
        return jsonify({'error': 'Failed to get chat session'}), 500

Parameters

Parameter Details

session_id: String identifier for the chat session to retrieve. This is extracted from the URL path parameter. Expected to be a unique identifier (likely UUID format) that corresponds to an existing chat session in the database.

Return Value

Returns a Flask JSON response tuple. On success (200): {'chat_session': <dict>} containing the serialized chat session data via to_dict() method. On not found (404): {'error': 'Chat session not found'}. On server error (500): {'error': 'Failed to get chat session'}. The response includes an HTTP status code as the second element of the tuple.

Dependencies

• flask
• logging

Required Imports

from flask import jsonify
import logging

Usage Example

# Assuming Flask app setup and services are initialized
# from flask import Flask
# from services import ChatSessionService
# import logging

# app = Flask(__name__)
# chat_session_service = ChatSessionService()
# logger = logging.getLogger(__name__)

# The endpoint is accessed via HTTP GET request:
# GET /api/chat-sessions/123e4567-e89b-12d3-a456-426614174000

# Example using requests library:
import requests

session_id = '123e4567-e89b-12d3-a456-426614174000'
response = requests.get(f'http://localhost:5000/api/chat-sessions/{session_id}')

if response.status_code == 200:
    chat_session = response.json()['chat_session']
    print(f"Session found: {chat_session}")
elif response.status_code == 404:
    print("Chat session not found")
else:
    print("Server error occurred")

Best Practices

• Always validate that the session_id parameter is in the expected format before querying the database
• Consider adding authentication/authorization checks to ensure users can only access their own chat sessions
• The function relies on chat_session_service being properly initialized in the module scope
• Error logging is implemented but consider adding more detailed error information for debugging
• The to_dict() method on ChatSession model must handle all serialization properly to avoid JSON encoding errors
• Consider adding rate limiting to prevent abuse of this endpoint
• Add request validation middleware to sanitize the session_id parameter
• Consider implementing caching for frequently accessed chat sessions to reduce database load

Tags

Similar Components

AI-powered semantic similarity - components with related functionality:

• function api_get_chat_session 91.2% similar

  Flask API endpoint that retrieves a specific chat session by ID, verifying user access permissions before returning the session data.

  From: /tf/active/vicechatdev/vice_ai/complex_app.py

• function get_session_history 82.2% similar

  Flask API endpoint that retrieves the chat message history for the current user's session.

  From: /tf/active/vicechatdev/docchat/app.py

• function get_history 78.4% similar

  Flask API endpoint that retrieves chat message history for the current user's session from an in-memory chat_sessions dictionary.

  From: /tf/active/vicechatdev/docchat/blueprint.py

• function api_clear_chat_session 77.1% similar

  Flask API endpoint that clears the chat history for a specific chat session identified by session_id.

  From: /tf/active/vicechatdev/vice_ai/new_app.py

• function api_create_chat_session 75.9% similar

  Flask API endpoint that creates or retrieves a chat session associated with a specific document section, ensuring proper validation and linking between documents, sections, and chat sessions.

  From: /tf/active/vicechatdev/vice_ai/new_app.py