umap/docs-users/support/advanced.md

uMap advanced usages

Preloading a map with data {: #preloading-data }

You can preload a map using the dataUrl parameter, that parameter must link to an encoded URL (using JavaScript’s encodeURIComponent() for instance).

You can also set the dataFormat parameter given the resource you are linking to:

• geojson (default)
• csv
• gpx
• georss
• kml
• osm

This example will load a map with borders for Arles, dynamically fetched from geo.api.gouv.fr :

https://umap.openstreetmap.fr/en/map/?dataUrl=https%3A%2F%2Fgeo.api.gouv.fr%2Fcommunes%3Fcode%3D13004%26format%3Dgeojson%26geometry%3Dcontour