1. Overview
This Cookie Policy explains how Trip Express Vietnam Company Limited (Tax ID: 0402217820, headquartered at 210 Diep Minh Chau, Da Nang City, Vietnam) uses cookies, localStorage, and sessionStorage across DING OS (getding.io and custom merchant domains).
2. Cookie inventory
Because DING OS powers real-time counter dispatch queues and direct table QR ordering, the following first-party cookies and storage keys are strictly necessary for platform security and operation:
| Storage key | Category | Technical purpose | Lifespan |
|---|---|---|---|
access_token | Authentication | HttpOnly, SameSite-protected token authenticating API requests to api.getding.io | Session / 1 hour |
refresh_token | Authentication | HttpOnly token used to seamlessly renew active staff sessions via OneUID | 30 days |
session | Authentication | Encrypted session metadata for server-rendered workspace routes | 30 days |
organization_id | Workspace Scope | Locks the active organization_id for staff managing multiple branches | Persistent (localStorage) |
NEXT_LOCALE | Localization | Preserves the user's selected display language across 14 supported locales | 1 year |
currency | Localization | Preserves the selected display currency for catalog and folio views | Persistent (localStorage) |
sound | Terminal State | Remembers the 880Hz Web Audio chime toggle on front-desk terminals | Persistent (localStorage) |
reference | QR Unit Lock | Binds the buyer's ordering session to the scanned table, room, or court QR code | Active Session |
3. Terminal storage
In addition to HTTP cookies, DING OS utilizes browser localStorage and sessionStorage on merchant counter terminals and buyer devices to:
- Prevent accidental table switching so buyers cannot bill orders to the wrong physical unit.
- Maintain active cart items during temporary mobile network drops before checkout submission.
- Cache non-sensitive theme preferences (light or dark surface mode) and custom domain brand tokens.
4. Telemetry
DING OS does not embed third-party behavioral advertising cookies, cross-site tracking pixels, or data-broker scripts on merchant ordering portals. First-party operational telemetry is restricted to monitoring edge routing latency, WebSocket connection health, and automated abuse prevention.
5. Preferences
Most web browsers allow you to clear or block cookies through your browser privacy settings. Please note that blocking Authentication or QR Unit Lock cookies will prevent staff workspace sign-in, custom domain session continuity, and self-service QR cart persistence.
6. Contact
If you have questions regarding our use of cookies or terminal storage, please contact Trip Express Vietnam Company Limited at 210 Diep Minh Chau, Da Nang City, Vietnam, via email at [email protected], or by telephone at +84 888 724 777.