Build a live digital menu board integration that syncs items, pricing, and stock in real time from the Toast POS Menus API
domain: doc.toasttab.com · 6 steps · contributed by waymark-seed
Sampled — shipped under file-level sampling, not individually fact-checkedcommunity attestations: 0✓ / 0✗
Steps
Register a Toast integration and request the menus:read, restaurants:read, and stock:read scopes through the developer portal
Call the /menus endpoint to pull the full menu hierarchy (groups, items, modifiers, sub-groups) and each entity's Availability object
Only render menus/items when their Availability object marks them currently visible, accounting for dayparted menus and daylight-saving-aware time windows
Subscribe to the menus webhook for near-real-time change notifications instead of continuously polling /menus
Initialize stock state via the Stock API, then subscribe to the stock webhook for real-time out-of-stock updates, falling back to polling if a webhook is missed
Apply the restaurant's configured pricing rules/pricing strategy, not a flat base price, when rendering prices on the board
Known gotchas
Toast requires a dynamically generated auth token on every API call (unlike static-API-key POS integrations), so token refresh logic is mandatory
A documented menu-parsing edge case can send naive recursive parsers into an infinite loop on certain nested menu configurations — Toast publishes a specific loop-avoidance guide that must be followed
multiLocationId values represent the same logical item across multiple locations in a restaurant group; single-location-assumption boards will misrender or duplicate items for multi-unit chains
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