What is Session Storage?

Session Storage is a web storage API that stores data for the duration of the page session. Data persists across page reloads but is cleared when the tab is closed. It's perfect for temporary data in Frontend Accelerator.

Session storage:

// Store data
sessionStorage.setItem('theme', JSON.stringify("dark"));

// Retrieve data
const cart = JSON.parse(sessionStorage.getItem('theme') || '[]');

// Remove data
sessionStorage.removeItem('theme');

// Clear all
sessionStorage.clear();

Common use cases:

• Multi-step forms: Preserve form data across pages
• Temporary filters: Store filter selections during browsing session
• Shopping cart: Maintain cart data without database writes
• UI state: Remember collapsed/expanded sections during session

Session storage vs Local Storage:

• Session: Cleared when tab closes, isolated per tab
• Local: Persists indefinitely, shared across all tabs

Key benefits:

• Simple API: Easy get/set methods for data storage
• Automatic cleanup: Data removed when session ends
• Tab isolation: Each tab has independent session storage
• No server requests: Instant access without network latency

AI-friendly: Session Storage follows a simple key-value API that AI can easily implement. AI can suggest optimal storage strategies, generate type-safe wrappers, handle JSON serialization, and manage storage quotas effectively.