feat: sync Soroban contract events to database closes #179#191
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ogazboiz merged 1 commit intoLabsCrypt:mainfrom Feb 26, 2026
Merged
feat: sync Soroban contract events to database closes #179#191ogazboiz merged 1 commit intoLabsCrypt:mainfrom
ogazboiz merged 1 commit intoLabsCrypt:mainfrom
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Add a background worker that polls the Stellar Soroban RPC for FlowFi stream contract events and keeps the PostgreSQL database in sync with on-chain state. - New `SorobanEventWorker` (`src/workers/soroban-event-worker.ts`) polls `SorobanRpc.Server.getEvents` on a configurable interval and processes StreamCreatedEvent, StreamToppedUpEvent, TokensWithdrawnEvent, and StreamCancelledEvent - Cursor-based pagination via paging tokens prevents re-processing events across restarts; falls back to `startLedger` on first run - Each event is decoded from XDR (symbol topics + contracttype struct body) and written to PostgreSQL inside a Prisma transaction, then broadcast to connected SSE clients via the existing SSEService - New `IndexerState` Prisma model + migration persists the last processed ledger and cursor - Worker starts after the HTTP server is ready and is gracefully shut down on SIGTERM / SIGINT - `@stellar/stellar-sdk` added as a runtime dependency - Worker is disabled gracefully when STREAM_CONTRACT_ID is not set
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closes #179