feat: replace JSON file DLQ with Prisma database storage (#69)#80
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robertocarlous merged 1 commit intoMay 29, 2026
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Resolves Neurowealth#69 - adds DeadLetterQueue model and DlqStatus enum to the Prisma schema, rewrites dlq.ts to persist DLQ entries in PostgreSQL via Prisma, and removes all file-system (fs) operations. Retry counts and status are updated atomically in-place; getSize() queries the DB so the count is always accurate across restarts and containers. Alert threshold check uses a live DB count instead of the in-memory queue length.
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Summary
DlqStatusenum (PENDING,RETRIED,RESOLVED) andDeadLetterQueuemodel toprisma/schema.prismasrc/stellar/dlq.tsto use Prisma exclusively — all file-system (fs) operations removedadd()creates a DB row;retryAll()updates status/retryCount atomically;getSize()queries the DB;resolve()usesupdateManyMigration required
Test plan
DeadLetterQueue.add(event, msg)inserts a row withstatus=PENDINGDeadLetterQueue.retryAll()marks successful retries asRESOLVEDand failed ones asRETRIED, incrementingretryCountDeadLetterQueue.getSize()returns the correct DB count after add/resolveDeadLetterQueue.resolve(id)setsstatus=RESOLVEDfor the given IDnpm test -- src/stellar/__tests__/stellar.test.ts— new DLQ tests passCloses #69