[Backend] Stellar Wave — upload expiry, MIME validation, WebSocket tx status, migration rollback - #871
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Ceejaytech25 merged 8 commits intoAug 1, 2026
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… after 30 days - Add UploadRecord model to schema with isTemporary flag and composite index - Add migration to add isTemporary column to existing UploadRecord table - Add deleteObject(key) to StorageProvider interface with implementations for MockStorageProvider, S3StorageProvider, and GcsStorageProvider - Add EXPIRED_DELETED to UploadStatus union type - Extend UploadExpiryScheduler with expireDbUploads() that queries DB for temporary records older than 30 days, deletes storage objects, and marks status as EXPIRED_DELETED; keeps in-memory expireStale() as fallback
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Nice implementation, LGTM! |
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Merged via main branch update. |
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Summary
Covers four Stellar Wave backend issues.
#740 — TTL expiry scheduler for temporary document uploads
storage-provider.service.ts: addeddeleteObject(key)to interface + Mock/S3/GCS implementationsupload-store.service.ts: addedEXPIRED_DELETEDstatusupload-expiry.scheduler.ts: addedexpireDbUploads()— queries DB forisTemporary=truerecords >30 days old, deletes from storage, marksEXPIRED_DELETED; keeps in-memory fallbackprisma/schema.prisma: addedisTemporaryflag and composite indexCloses #740
#746 — Strict MIME-type validation for KYC uploads
storage-provider.service.ts:MAX_UPLOAD_SIZE_BYTES,validateUploadSize(size),validateKycUpload(buffer, declaredMimeType)— checks magic bytes (JPEGff d8 ff, PNG89 50 4e 47, PDF%PDF)Closes #746
#747 — WebSocket server for real-time transaction status
backend/src/lib/socket.ts(new):initSocket(httpServer),emitTxUpdated(payload), JWT auth middlewarebackend/src/index.ts: wraps Express inhttp.createServer, callsinitSocket, listens onhttpServerbackend/src/api/routes/transactions.route.ts:PATCH /api/transactions/:id/statusupdates DB and emitstx_updatedpackage.json: addedsocket.io ^4.8.1(runnpm installafter merging)Closes #747
#749 — Migration rollback with FK integrity verification
backend/scripts/rollback.ts(new):RollbackVerifier— checks FK violations viaPRAGMA foreign_key_check, prints report, applies rollback; supports--forceand--dry-runpackage.json: addedmigrate:rollback:verifyscriptdocs/MIGRATION_INTEGRITY.md: added Rollback Verification Procedure sectionCloses #749