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function get_session_settings

Maturity: 43

Flask API endpoint that retrieves saved settings for the current user's session from the session store.

File:
/tf/active/vicechatdev/docchat/app.py
Lines:
926 - 933
Complexity:
simple

Purpose

This function serves as a REST API endpoint to fetch session-specific settings for authenticated users. It retrieves the session ID from Flask's session object, looks up or creates the corresponding chat session, and returns the stored settings as JSON. This is typically used to restore user preferences, UI state, or configuration options when a user returns to the application or refreshes the page.

Source Code

def get_session_settings():
    """Get saved settings for current session"""
    session_id = session.get('session_id')
    if not session_id:
        return jsonify({'settings': {}})
    
    chat_session = get_or_create_session(session_id)
    return jsonify({'settings': chat_session.get('settings', {})})

Return Value

Returns a Flask JSON response object containing a dictionary with a 'settings' key. If a session_id exists and settings are found, returns {'settings': <settings_dict>}. If no session_id exists, returns {'settings': {}}. The actual structure of the settings dictionary depends on what has been previously stored for that session.

Dependencies

  • flask
  • uuid
  • pathlib
  • os
  • json
  • logging
  • datetime
  • time
  • threading
  • werkzeug
  • functools
  • config
  • rag_engine
  • document_indexer
  • auth.azure_auth
  • docx
  • reportlab
  • io
  • traceback

Required Imports

from flask import Flask
from flask import jsonify
from flask import session
from functools import wraps

Usage Example

# Assuming Flask app is set up with authentication
# Client-side JavaScript example:
fetch('/api/session/settings', {
  method: 'GET',
  credentials: 'include',
  headers: {
    'Content-Type': 'application/json'
  }
})
.then(response => response.json())
.then(data => {
  console.log('Session settings:', data.settings);
  // Use settings to restore UI state, preferences, etc.
})
.catch(error => console.error('Error fetching settings:', error));

# Server-side testing example:
with app.test_client() as client:
  with client.session_transaction() as sess:
    sess['session_id'] = 'test-session-123'
  response = client.get('/api/session/settings')
  data = response.get_json()
  print(data['settings'])

Best Practices

  • This endpoint requires authentication via the login_required decorator - ensure users are logged in before calling
  • The function gracefully handles missing session_id by returning an empty settings dictionary
  • Session IDs should be securely generated and stored in Flask's session object
  • The get_or_create_session() helper function must be implemented to handle session persistence
  • Consider implementing rate limiting on this endpoint to prevent abuse
  • Settings should be validated and sanitized before being stored to prevent injection attacks
  • Use HTTPS in production to protect session cookies and data in transit
  • Consider adding error handling for cases where get_or_create_session() fails
  • Document the expected structure of the settings dictionary for API consumers

Tags

flask api session-management settings rest-api authentication user-preferences state-management json-response web-endpoint

Similar Components

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  • function save_session_settings 85.0% similar

    Flask API endpoint that saves user-provided settings for the current session by retrieving the session ID from Flask's session object and updating the session settings in the backend.

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

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