2026-04-16-1

apps/api/src/maps/maps.controller.ts

@@ -107,8 +107,9 @@ export class MapsController {
     const profile = query.profile || 'car';
     const steps = query.steps === 'true';
     const locale = query.locale || 'en';
+    const alternatives = query.alternatives === 'true';
 
-    return this.mapsService.getRoute(waypoints, profile, steps, locale);
+    return this.mapsService.getRoute(waypoints, profile, steps, locale, alternatives);
   }
 
   @Get('config')

apps/api/src/maps/maps.service.ts

@@ -22,7 +22,7 @@ export class MapsService {
     this.graphHopperUrl = this.configService.get('GRAPH_HOPPER_URL', 'http://routing:8080');
   }
 
-  async getRoute(waypoints: [number, number][], profile: string = 'car', steps: boolean = false, locale: string = 'en') {
+  async getRoute(waypoints: [number, number][], profile: string = 'car', steps: boolean = false, locale: string = 'en', alternatives: boolean = false) {
     if (waypoints.length < 2) {
       throw new HttpException('At least two waypoints are required', HttpStatus.BAD_REQUEST);
     }
@@ -64,7 +64,7 @@ export class MapsService {
       };
 
       // GraphHopper ONLY supports alternative routes if there are exactly 2 points (Start and End)
-      if (waypoints.length === 2) {
+      if (alternatives && waypoints.length === 2) {
         payload.algorithm = 'alternative_route';
         payload['ch.disable'] = true; // Required for alternative routes
         payload['alternative_route.max_paths'] = 2; // Return main route + 1 alternative
@@ -93,7 +93,7 @@ export class MapsService {
       const trafficAwareDuration = baseDuration * trafficFactor;
 
       // Process alternative routes if any without breaking existing frontend variables
-      const alternatives = paths.slice(1).map(alt => ({
+      const altRoutes = paths.slice(1).map(alt => ({
         distance: alt.distance,
         duration: Math.round(alt.time / 1000),
         points: alt.points,
@@ -111,7 +111,7 @@ export class MapsService {
         points: route.points,
         bbox: route.bbox,
         instructions: route.instructions, // Added: turn-by-turn maneuvers
-        alternatives: alternatives
+        alternatives: altRoutes
       };
     } catch (error) {
       const msg = error.response ? `GH Error: ${JSON.stringify(error.response.data)}` : `DNS/Connection Error: ${error.message}`;