feat: (broken) implement route map and address autocomplete widgets with associated infrastructure testing scripts

em2rp/scratch/test_lambert_route.dart

@@ -0,0 +1,34 @@
+import 'dart:convert';
+import 'dart:io';
+
+void main() async {
+  final envFile = File('functions/.env');
+  final lines = await envFile.readAsLines();
+  String apiKey = '';
+  for (var line in lines) {
+    if (line.startsWith('API_MAPS=')) {
+      apiKey = line.split('=')[1].replaceAll('"', '');
+    }
+  }
+
+  final url = 'https://routes.googleapis.com/directions/v2:computeRoutes';
+  final client = HttpClient();
+  
+  final request = await client.postUrl(Uri.parse(url));
+  request.headers.set('Content-Type', 'application/json');
+  request.headers.set('X-Goog-Api-Key', apiKey);
+  request.headers.set('X-Goog-FieldMask', 'routes.distanceMeters,routes.duration,routes.polyline.encodedPolyline');
+  
+  final payload = jsonEncode({
+    "travelMode": "DRIVE",
+    "routingPreference": "TRAFFIC_AWARE",
+    "origin": { "address": "401 route du camping, 69850 Saint Martin en haut" },
+    "destination": { "address": "652431, 6853241" }
+  });
+  
+  request.write(payload);
+  final response = await request.close();
+  final responseBody = await response.transform(utf8.decoder).join();
+  
+  print(responseBody);
+}