feat: implement advanced data analytics pipeline (#635)#671
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RUKAYAT-CODER merged 1 commit intoMay 27, 2026
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- Add ETL pipeline service with extract/transform/load stages - Add DataWarehouseService with in-memory store, query, and aggregate - Add BiIntegrationService for report generation and JSON/CSV export - Add DashboardGateway (WebSocket /dashboard namespace) for real-time updates - Add DataPipelineController with REST endpoints for ETL, warehouse, and BI - Wire DataPipelineModule into AppModule - Add 23 unit tests covering all three services - Fix jest.config.js ts-jest tsconfig to include @types/jest types Closes rinafcode#635
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Summary
Implements the advanced data analytics pipeline as specified in issue #635.
Changes
New module:
src/data-pipeline/etl.service.tsdata-warehouse.service.tsingest,query(filter by source/date/limit), andaggregatebi-integration.service.tsdashboard.gateway.ts/dashboardnamespace) — broadcasts live ETL events to connected clientsdata-pipeline.controller.tsPOST /data-pipeline/etl/run,GET /data-pipeline/warehouse,GET /data-pipeline/bi/report,GET /data-pipeline/bi/exportdata-pipeline.module.tsOther changes
src/app.module.ts— importsDataPipelineModulejest.config.js— adds@types/jestto ts-jest tsconfig sotest/setup.tscompiles correctlyAcceptance Criteria
EtlService.run— extract → transform → load)DataWarehouseService— ingest, query, aggregate)BiIntegrationService— reports, JSON/CSV export)DashboardGateway— WebSocket/dashboardnamespace)Testing
eslint --max-warnings 0)src/data-pipeline/Closes #635