Bounding box
North, south, east and west constrain the response
Spatial API & Performance
Future endpoints support problems, risks, opportunities, progress and global solutions with viewport, zoom, location, layer, pillar, year, status and evidence parameters.
Send the browser only the geography it needs.
Progressive loading
States → districts → cities → local areas by zoom
Clustering
Aggregate markers when zoomed out
Vector tiles
Simplified geometry for scalable rendering
Caching
Versioned keys by layer, zoom, viewport and filters
Validation
Published layers only, safe parameters and rate limits
PRINCIPLE