world bbox
This block is part of the openstreetmap group and was last modified in core v15.0.0.
world bbox v15.0.0 Fetch OSM world geometry for a bounding box (south,west,north,east) as GeoJSON (roads, buildings, water, greenery).
- flow
flow - bbox
v15.0.0valueBounding box as
south,west,north,east(WGS84). Takes precedence over the separate coordinate pins. - south
v15.0.0numberSouth latitude (used when
bboxis empty). - west
v15.0.0numberWest longitude (used when
bboxis empty). - north
v15.0.0numberNorth latitude (used when
bboxis empty). - east
v15.0.0numberEast longitude (used when
bboxis empty). - kinds
v15.0.0objectOptional array (or comma-separated value) limiting which feature kinds are returned:
road,building,water,green. Empty returns all four. - simplify
v15.0.0numberOptional Douglas–Peucker tolerance in degrees (0 = off). Simplifies roads/water/green lines and areas; buildings stay crisp.
- overpass url
v15.0.0valueOptional Overpass interpreter URL. Empty uses the public instance : set a self-hosted instance in production.
- cache ttl (s)
v15.0.0numberDisk-cache freshness in seconds. Empty/0 uses the default (7 days); negative disables caching. bbox requests are cached by a hash of the box, kinds and simplify tolerance.
- flow
flow - geojson
v15.0.0objectGeoJSON FeatureCollection (WGS84, lon/lat). Feed into httpconnection_set_json.
- count
v15.0.0numberNumber of features returned.
- success
v15.0.0conditionTrue when the box was fetched successfully.
- error
v15.0.0valueError message when success is
false.
osm |
openstreetmap |
geojson |
world |
bbox |
overpass |
map |
A typical wiring for world bbox: a function trigger starts the flow; the flow out pin feeds debug.

Used in these guides
These documentation pages use or explain this block:
Version history
Introduced in v15.0.0.
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