BTC

lib/bitcoin/api.dart

@@ -0,0 +1,21 @@
+import 'dart:convert';
+import 'package:http/http.dart';
+
+const blockchainInfoBaseURI = 'https://blockchain.info';
+const multiAddressURI = '$blockchainInfoBaseURI/multiaddr';
+
+Future<List<String>> fetchAllAddresses({String xpub}) async {
+  final uri = '$multiAddressURI?active=$xpub';
+  final response = await get(uri);
+  final responseJSON = json.decode(response.body) as Map<String, dynamic>;
+
+  print(responseJSON);
+
+  return (responseJSON['addresses'] as List<dynamic>).map((dynamic row) {
+    if (row is Map<String, Object>) {
+      return row['address'] as String;
+    }
+
+    return '';
+  }).toList();
+}