Going further
Spatial queries
Find addresses within an area — polygon, circle or nearest point.
Three ways to ask geographically. All of them use srid to pick the coordinate system.
Within a circle
Bash
curl "https://api.danskadresseapi.dk/v1/adresser?cirkel=12.5683,55.6761,500" \
-H "Authorization: Bearer YOUR_KEY"cirkel={x},{y},{radius} — the radius is in metres.
Within a polygon
Bash
curl "https://api.danskadresseapi.dk/v1/adresser?polygon=[[[12.5,55.6],[12.6,55.6],[12.6,55.7],[12.5,55.6]]]" \
-H "Authorization: Bearer YOUR_KEY"The polygon must be closed — the first and last coordinate must be identical.
If it is not closed, the request is rejected.
Nearest address
Bash
curl "https://api.danskadresseapi.dk/v1/adresser/reverse?x=12.5683&y=55.6761" \
-H "Authorization: Bearer YOUR_KEY"The coordinate system
The default is WGS84 (longitude/latitude), which is what GPS and maps use. If you need ETRS89/UTM32, set srid — and remember that x is then the easting, not the longitude.
Distances are straight-line, not routed. An address 200 m away as the crow flies
may be on the other side of a stream.