Flutter App

flutter_app/lib/services/api_service.dart

@@ -0,0 +1,76 @@
+import 'dart:convert';
+import 'package:flutter/foundation.dart';
+import 'package:http/http.dart' as http;
+import 'package:flutter_dotenv/flutter_dotenv.dart';
+import '../models/price_data.dart';
+
+class ApiService {
+  final String baseUrl;
+
+  ApiService() : baseUrl = dotenv.env['API_URL'] ?? 'http://localhost:3000' {
+    // Debug: Print the actual URL being used
+    if (kDebugMode) {
+      print('ApiService initialized with baseUrl: $baseUrl');
+      print('Available env vars: ${dotenv.env.keys.toList()}');
+    }
+  }
+
+  Future<LatestPrice?> fetchLatestPrice() async {
+    try {
+      final url = '$baseUrl/prices/latest';
+      if (kDebugMode) {
+        print('Fetching latest price from: $url');
+      }
+      
+      final response = await http.get(Uri.parse(url));
+      
+      if (kDebugMode) {
+        print('Response status: ${response.statusCode}');
+        print('Response body: ${response.body}');
+      }
+      
+      if (response.statusCode == 200) {
+        final data = jsonDecode(response.body) as Map<String, dynamic>;
+        return LatestPrice.fromJson(data);
+      } else {
+        if (kDebugMode) {
+          print('HTTP Error ${response.statusCode}: ${response.body}');
+        }
+      }
+    } catch (e) {
+      if (kDebugMode) {
+        print('Error fetching latest price: $e');
+      }
+    }
+    return null;
+  }
+
+  Future<HistoryData?> fetchHistory(String range) async {
+    try {
+      final url = '$baseUrl/index/history?range=$range';
+      if (kDebugMode) {
+        print('Fetching history from: $url');
+      }
+      
+      final response = await http.get(Uri.parse(url));
+      
+      if (kDebugMode) {
+        print('History response status: ${response.statusCode}');
+      }
+      
+      if (response.statusCode == 200) {
+        final data = jsonDecode(response.body) as Map<String, dynamic>;
+        return HistoryData.fromJson(data);
+      } else {
+        if (kDebugMode) {
+          print('HTTP Error ${response.statusCode}: ${response.body}');
+        }
+      }
+    } catch (e) {
+      if (kDebugMode) {
+        print('Error fetching history: $e');
+      }
+    }
+    return null;
+  }
+}