Add PP Dashboard API and event subscription#36
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Polls Stellar RPC getEvents for provider_added, provider_removed, and contract_initialized events on the Channel Auth contract. - EventWatcher: self-scheduling poll loop, KV-persisted cursor for restart resilience, handler registration pattern - ChannelRegistry: tracks channel state (active/pending/inactive) from on-chain events - fetchChannelAuthEvents: parses RPC event responses into typed events - 16 unit tests with mock RPC responses
Operator authentication via Ed25519 signed challenge. Multisig-aware via Horizon signers lookup. Bounded challenge store (max 1000), configurable TTL from env, one-time nonce consumption. Dependencies injected for testability (provider key, Horizon URL, JWT generator). 9 unit tests including 64-byte invalid signature test.
- POST /dashboard/auth/challenge — nonce for Ed25519 signing - POST /dashboard/auth/verify — verify signature, issue JWT - GET /dashboard/channels — channel registry state - GET /dashboard/mempool — mempool stats and config - GET /dashboard/operations — bundle/tx counts via COUNT queries - GET /dashboard/treasury — OpEx balance from Horizon - GET /dashboard/audit-export — CSV export with SQL date filtering Auth endpoints use low rate limit (10/min). Data endpoints protected by JWT middleware. Error responses don't leak internal details.
- Start/stop EventWatcher in main.ts bootstrap/shutdown - Fix JWT expiry: getNumericDate(0)/getNumericDate(SESSION_TTL) - Hash nonce for JWT sessionId instead of raw material - Hard crash if SERVICE_AUTH_SECRET missing in production - Add countByStatus and findByStatusAndDateRange to repositories - Add composite index on (status, deleted_at, created_at)
The sessionId hashing broke the existing SEP-10 auth flow — bundle endpoints look up sessions by the raw challenge hash stored in KV, but the JWT now contained a hashed value that didn't match. Move the nonce hashing to dashboard-auth.ts only, since dashboard tokens don't use session lookups. The shared generate-jwt.ts passes challengeHash through unchanged to preserve SEP-10 compatibility.
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Summary
Test plan
deno test --no-check --allow-all src/— 25 tests pass