feat: add uid2Refresh to SDK#281
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Adds client-side UID2 token refresh via the UID2 v2 API. The response is AES-GCM encrypted and decrypted using the browser WebCrypto API. Exposes: - `Uid2Refresh(refreshToken, refreshResponseKey)` from edge/uid2_token - `sdk.uid2Refresh(refreshToken, refreshResponseKey)` instance method - `Uid2RefreshBody` type for the decrypted response body Co-Authored-By: Claude Sonnet 4.6 (1M context) <noreply@anthropic.com>
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Summary
Uid2Refresh(refreshToken, refreshResponseKey)tolib/edge/uid2_token.ts— callsprod.uidapi.com/v2/token/refreshdirectly (no DCN involved)crypto.subtle) to handle the encrypted UID2 refresh responsesdk.uid2Refresh(refreshToken, refreshResponseKey)instance method onOptableSDK, consistent with the existinguid2TokenpatternUid2RefreshBodytype for the decrypted response body (snake_case, matches UID2 v2 API)Motivation
Several solution wrappers (e.g. Mediavine) implement this refresh+decrypt logic inline. Bringing it into the SDK eliminates duplication and makes it available to all publishers.
Test plan
npm run build)sdk.uid2Token(email)to get an initial identity, thensdk.uid2Refresh(identity.RefreshToken, identity.RefreshResponseKey)to verify refresh returns a newadvertising_token🤖 Generated with Claude Code