data-import-export

Bulk data import and export for Node and PostgreSQL - CSV, JSON and NDJSON formats, streaming instead of buffering, row-level validation with error reports, idempotent re-runnable imports, staging tables with merge or upsert, batch sizes and transactions, encoding, locale and timezone pitfalls, large files, deduplication, mapping and transform layers, dry-run mode, progress and resumability, export pagination and consistency, PII in exports, signed download links, and CSV formula injection protection. Load when building file imports or exports, bulk loading data, migrating data between systems, or debugging bad or partial loads.