Categories can be created as YAML files. This is much simpler as JSON files, because you don't have to add all these quotes, you can use multi-line strings and allows adding comments.
Categories can be created as YAML files. This is much simpler as JSON files, because you don't have to add all these quotes, you can use multi-line strings and allows adding comments.
A simple example ([Source](https://www.openstreetbrowser.org/dev/OpenStreetBrowser/examples/src/branch/master/example1.yaml)). It queries nodes, ways and relations with amenity=restaurant from OpenStreetMap (via Overpass API), starting from zoom level 15. `nwr` is short for `(node[amenity=restaurant];way[amenity=restaurant];relation[amenity=restaurant];)`:
A simple example ([Source](https://www.openstreetbrowser.org/dev/OpenStreetBrowser/examples/src/branch/master/example1.yaml)). It queries nodes, ways and relations with amenity=restaurant from OpenStreetMap (via Overpass API), starting from zoom level 15. `nwr` is short for `(node[amenity=restaurant];way[amenity=restaurant];relation[amenity=restaurant];)`. Please note, that only a subset of OverpassQL is available (see [overpass-frontend](https://github.com/plepe/overpass-frontend) for details).
```yaml
```yaml
# This is necessary, it tells OSB that this uses OverpassQL for queries.
# This is necessary, it tells OSB that this category is of type 'overpass'. An alternative would be 'index' (for directories).
type: overpass
type: overpass
# From zoom level 15 on, load all node, ways and relations with amenity=restaurant.
# From zoom level 15 on, load all node, ways and relations with amenity=restaurant.
query:
query:
@ -206,3 +206,5 @@ const:
default:
default:
color: '#ffff00'
color: '#ffff00'
```
```
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