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hub/docs/decisions/ADR-004-keypal-integration-strategy.md
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ADR-004: Keypal integration strategy

  • Status: Accepted
  • Date: 2026-04-19
  • Deciders: alkdev

Context

keypal (v0.1.11, MIT) provides API key management with hashing, scopes, caching, and a Drizzle storage adapter. Need API key management for hub authentication.

Decision

Use keypal as a dependency (not fork). Import core utilities (createKeys, hashKey, validateKey, scope checking) directly. Define our own api_keys table following the commonCols pattern with proper columns for high-query fields (owner_id, key_hash, enabled, expires_at, revoked_at). Implement keypal's Storage interface as a thin adapter (HubKeyStorage) over our Drizzle tables.

Consequences

Custom Storage adapter is more work than using keypal's DrizzleStore directly, but our commonCols pattern and column structure are important for consistency. The adapter is ~100 lines and straightforward. Positive: clean integration that respects our schema conventions. Negative: maintenance burden on adapter if keypal's Storage interface changes.