First complete backend

scripts/fetch_osm_data.sh

@@ -1,41 +0,0 @@
-#!/usr/bin/env nix-shell
-#! nix-shell -i bash --pure
-#! nix-shell -p bash curl cacert jq
-
-if [ $# -eq 2 ]; then
-    OUTPUT=$1
-else
-    OUTPUT=data/raw.osm.pbf
-fi
-
-WAY_DATA=$(curl -s https://overpass-api.de/api/interpreter --data-urlencode 'data=[out:json];way["name"="Northern Arizona University"];out geom;')
-
-# Extract coordinates from the response
-COORDINATES=$(echo "$WAY_DATA" | jq '[.elements[] | select(.type == "way") | .geometry[] | [.lon, .lat]]')
-
-echo $COORDINATES
-
-# Ensure we have coordinates
-if [ -z "$COORDINATES" ]; then
-  echo "Error: Could not find coordinates for NAU"
-  exit 1
-fi
-
-# Construct the GeoJSON payload
-PAYLOAD=$(jq -n --argjson coords "$COORDINATES" '{
-  "Name": "none",
-  "RegionType": "geojson",
-  "RegionData": {
-    "type": "Polygon",
-    "coordinates": [$coords]
-  }
-}')
-
-# Send the request to the Slice API
-UUID=$(curl -X POST https://slice.openstreetmap.us/api/ -H "Content-Type: application/json" -d "$PAYLOAD")
-
-while ! [ $(curl https://slice.openstreetmap.us/api/$UUID | jq -r '.Complete') = 'true' ]; do
-    sleep 1
-done
-
-curl https://slice.openstreetmap.us/files/$UUID.osm.pbf -o $OUTPUT

scripts/fetch_sidewalk_data.sh

@@ -1,7 +1,16 @@
 #!/usr/bin/env nix-shell
 #! nix-shell -i bash --pure
-#! nix-shell -p bash curl cacert
+#! nix-shell -p bash curl cacert jq
 
 # TODO: process out extraneous data
 
-curl -s https://overpass-api.de/api/interpreter --data-urlencode 'data=[out:json];{{geocodeArea:Northern Arizona University}}->.searchArea;(way["highway"="footway"](area.searchArea);way["highway"="cycleway"](area.searchArea););out geom;' -o data/sidewalks.json
+# curl -s https://overpass-api.de/api/interpreter --data-urlencode 'data=[out:json];area[name="Northern Arizona University"]->.searchArea;(way["highway"="footway"](area.searchArea);way["highway"="cycleway"](area.searchArea););out geom;' -o data/sidewalks.json
+curl -s "https://overpass-api.de/api/interpreter" --data '
+    [out:json];
+    area[name="Northern Arizona University"]->.searchArea;
+    (
+        way["highway"="footway"](area.searchArea);
+        way["highway"="cycleway"](area.searchArea);
+    );
+    out geom;' \
+| jq '[ .elements[] | { OSMID: .id, Geometry: [ .geometry[] | [ .lat, .lon ] ], Tags: .tags } ]' > data/sidewalks.json

scripts/parse_sidewalks.py

@@ -1,52 +0,0 @@
-#!/usr/bin/env nix-shell
-#! nix-shell -i python
-#! nix-shell -p python3 python3Packages.pyosmium python3Packages.requests
-import osmium
-import json
-import sys
-
-class SidewalkHandler(osmium.SimpleHandler):
-    def __init__(self):
-        super(SidewalkHandler, self).__init__()
-        self.sidewalks = []
-
-    def way(self, w):
-        # Convert OSM tags to a normal dict for easier use
-        tags = dict(w.tags)
-        is_sidewalk = False
-
-        # Check for a dedicated footway sidewalk
-        if tags.get('highway') == 'footway':
-            is_sidewalk = True
-        # # Alternatively, check if the 'sidewalk' tag is present and not set to no/none
-        # elif 'sidewalk' in tags and tags['sidewalk'].lower() not in ['no', 'none']:
-        #     is_sidewalk = True
-
-        if is_sidewalk:
-            sidewalk = {
-                "id": w.id,
-                "nodes": [],
-                "tags": tags
-            }
-            # Gather node coordinates if available
-            for n in w.nodes:
-                # Ensure the node location is valid
-                if n.location.valid():
-                    sidewalk["nodes"].append({
-                        "lat": n.location.lat,
-                        "lon": n.location.lon
-                    })
-            self.sidewalks.append(sidewalk)
-
-if __name__ == "__main__":
-    if len(sys.argv) < 2:
-        sys.stderr.write("Usage: python script.py <path-to-osm-pbf-file>\n")
-        sys.exit(1)
-
-    pbf_file = sys.argv[1]
-    handler = SidewalkHandler()
-    # The locations=True flag makes sure node coordinates are available.
-    handler.apply_file(pbf_file, locations=True)
-
-    # Output the results as an indented JSON list
-    print(json.dumps(handler.sidewalks, indent=2))