add routing api

src/c3nav/routing/api.py

@@ -0,0 +1,32 @@
+from rest_framework.decorators import list_route
+from rest_framework.response import Response
+from rest_framework.viewsets import ViewSet
+
+from c3nav.routing.forms import RouteForm
+from c3nav.routing.router import Router
+
+
+class RoutingViewSet(ViewSet):
+    """
+    Routing API
+    /geometries/ returns a list of geojson features, you have to specify ?level=<id> or ?space=<id>
+    /geometrystyles/ returns styling information for all geometry types
+    /bounds/ returns the maximum bounds of the map
+    """
+
+    def list(self, request):
+        return []
+
+    @list_route(methods=['get'])
+    def route(self, request, *args, **kwargs):
+        params = request.POST if request.method == 'POST' else request.GET
+        form = RouteForm(params, request=request)
+
+        if not form.is_valid():
+            return Response({
+                'errors': form.errors,
+            })
+
+        route = Router.load().get_route(form.cleaned_data['origin'], form.cleaned_data['destination'])
+
+        return Response(route.serialize())