From Shapefile to web map: a practical data pipeline

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The pipeline at a glance

1. Validate the incoming Shapefile (projection, geometry, attributes)
2. Load into PostGIS or SQL Server spatial tables
3. Publish through a tile or feature service
4. Consume from the web client

Why validation comes first

Most pipeline failures trace back to inputs nobody checked: mixed projections, broken ring geometry, or attribute columns that silently changed names.

-- Placeholder query: find invalid geometries before they poison the pipeline
SELECT id, GEOMETRY.STIsValid() AS is_valid
FROM parcels
WHERE GEOMETRY.STIsValid() = 0;

A closing paragraph summarizing the takeaway goes here.