This endpoint is used during cookie syncs. For technical details, see the Cookie Sync developer docs.
This endpoint saves a UserID for a Bidder in the Cookie. Saved IDs will be recognized for 7 days before being considered “stale” and being re-synced.
bidder: The FamilyName of the Usersyncer which is being synced.
uid: The ID which the Bidder uses to recognize this user. If undefined, the UID for
bidderwill be deleted.
gdpr: This should be
1if GDPR is in effect,
0if not, and undefined if the caller isn’t sure
gdpr_consent: This is required if
gdpris one, and optional (but encouraged) otherwise. If present, it should be an unpadded base64-URL encoded Vendor Consent String.
gdpr_consent params are included, this endpoint will not write a cookie unless:
If in doubt, contact the company hosting Prebid Server and ask if they’re GDPR-ready.